{"id":111369,"date":"2026-10-01T01:09:41","date_gmt":"2026-09-30T17:09:41","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/111369.html"},"modified":"2026-10-01T01:09:41","modified_gmt":"2026-09-30T17:09:41","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3%e6%8c%87%e9%92%884","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/111369.html","title":{"rendered":"\u6df1\u5165\u7406\u89e3\u6307\u94884"},"content":{"rendered":"

\u6df1\u5165\u7406\u89e3\u6307\u9488（\u56db）：\u5b57\u7b26\u6307\u9488\u3001\u6570\u7ec4\u6307\u9488\u3001\u51fd\u6570\u6307\u9488\u4e0e\u8f6c\u79fb\u8868<\/h2>\n

\u6570\u7ec4\u548c\u6307\u9488\u7684\u5173\u7cfb，\u672c\u8d28\u4e0a\u5c31\u662f\u201c\u5730\u5740 + \u7c7b\u578b + \u6b65\u957f\u201d\u7684\u5173\u7cfb\u3002 \u524d\u9762\u6211\u4eec\u5df2\u7ecf\u8ba8\u8bba\u4e86\u6570\u7ec4\u540d\u3001\u6307\u9488\u8bbf\u95ee\u3001\u4f20\u53c2\u9000\u5316\u3001\u4e8c\u7ea7\u6307\u9488\u3001\u6307\u9488\u6570\u7ec4\u548c\u4e8c\u7ef4\u6a21\u62df\u3002\u8fd9\u4e00\u7bc7\u7ee7\u7eed\u6cbf\u7740\u8fd9\u6761\u4e3b\u7ebf，\u628a\u5b57\u7b26\u6307\u9488\u3001\u6570\u7ec4\u6307\u9488\u3001\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u3001\u51fd\u6570\u6307\u9488\u3001\u51fd\u6570\u6307\u9488\u6570\u7ec4\u548c\u8f6c\u79fb\u8868\u4e00\u6b21\u8bb2\u900f\u3002<\/p>\n

\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u76ee\u5f55<\/h3>\n
  • \u672c\u8282\u76ee\u6807<\/li>\n
  • \u5b57\u7b26\u6307\u9488\u53d8\u91cf<\/li>\n
  • \u6570\u7ec4\u6307\u9488\u53d8\u91cf<\/li>\n
  • \u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u7684\u672c\u8d28<\/li>\n
  • \u51fd\u6570\u6307\u9488\u53d8\u91cf<\/li>\n
  • \u51fd\u6570\u6307\u9488\u6570\u7ec4<\/li>\n
  • \u8f6c\u79fb\u8868<\/li>\n
  • \u5e38\u89c1\u9677\u9631\u4e0e\u8c03\u8bd5\u5efa\u8bae<\/li>\n
  • \u603b\u7ed3<\/li>\n

    \u672c\u8282\u76ee\u6807<\/h3>\n
  • \u7406\u89e3 char *\u3001\u5b57\u7b26\u6570\u7ec4\u548c\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u7684\u533a\u522b\u3002<\/li>\n
  • \u638c\u63e1\u6570\u7ec4\u6307\u9488 int (*p)[N] \u7684\u5b9a\u4e49\u3001\u521d\u59cb\u5316\u548c\u6b65\u957f\u3002<\/li>\n
  • \u660e\u767d\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u5199\u6210 int **\u3002<\/li>\n
  • \u638c\u63e1\u51fd\u6570\u6307\u9488\u7684\u5b9a\u4e49\u3001\u8c03\u7528\u548c\u4f5c\u4e3a\u53c2\u6570\u4f7f\u7528\u3002<\/li>\n
  • \u638c\u63e1\u51fd\u6570\u6307\u9488\u6570\u7ec4\u7684\u5b9a\u4e49\u4e0e\u521d\u59cb\u5316\u3002<\/li>\n
  • \u80fd\u7528\u8f6c\u79fb\u8868\u66ff\u4ee3\u5197\u957f\u7684 switch，\u5199\u51fa\u66f4\u4f18\u96c5\u7684\u8ba1\u7b97\u5668\u3002<\/li>\n
    \n

    \u4e00\u3001\u5b57\u7b26\u6307\u9488\u53d8\u91cf<\/h3>\n

    1.1 \u5b57\u7b26\u6307\u9488\u7684\u4e24\u79cd\u5e38\u89c1\u7528\u6cd5<\/h4>\n

    \u5b57\u7b26\u6307\u9488\u7684\u7c7b\u578b\u662f char *\u3002\u5b83\u65e2\u53ef\u4ee5\u6307\u5411\u5355\u4e2a\u5b57\u7b26，\u4e5f\u53ef\u4ee5\u6307\u5411\u5b57\u7b26\u4e32\u3002<\/p>\n

    \n

    #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
    \n{<\/span>
    \n char<\/span> ch =<\/span> 'w'<\/span>;<\/span>
    \n char<\/span> *<\/span>pc =<\/span> &<\/span>ch;<\/span><\/p>\n

    printf<\/span>(<\/span>"ch = %c\\\\n"<\/span>,<\/span> ch)<\/span>;<\/span>
    \n printf<\/span>(<\/span>"*pc = %c\\\\n"<\/span>,<\/span> *<\/span>pc)<\/span>;<\/span><\/p>\n

    *<\/span>pc =<\/span> 'W'<\/span>;<\/span>
    \n printf<\/span>(<\/span>"\u4fee\u6539\u540e ch = %c\\\\n"<\/span>,<\/span> ch)<\/span>;<\/span><\/p>\n

    return<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    \u8f93\u51fa\u793a\u4f8b：<\/p>\n

    ch = w
    \n*pc = w
    \n\u4fee\u6539\u540e ch = W<\/p>\n

    \u53e6\u4e00\u79cd\u5e38\u89c1\u5199\u6cd5：<\/p>\n

    #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
    \n{<\/span>
    \n const<\/span> char<\/span> *<\/span>pstr =<\/span> "hello bit."<\/span>;<\/span>
    \n printf<\/span>(<\/span>"%s\\\\n"<\/span>,<\/span> pstr)<\/span>;<\/span>
    \n return<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u8fd9\u91cc\u5e76\u4e0d\u662f\u628a\u6574\u4e2a\u5b57\u7b26\u4e32\u201c\u653e\u8fdb\u201d\u4e86 pstr，\u800c\u662f\u628a\u5b57\u7b26\u4e32\u9996\u5b57\u7b26 'h' \u7684\u5730\u5740\u5b58\u5165\u4e86 pstr\u3002pstr \u6307\u5411\u5e38\u91cf\u5b57\u7b26\u4e32，\u901a\u5e38\u4f4d\u4e8e\u53ea\u8bfb\u533a\u57df，\u56e0\u6b64\u4e0d\u5efa\u8bae\u901a\u8fc7 pstr \u4fee\u6539\u5185\u5bb9\u3002<\/p>\n

    1.2 \u5b57\u7b26\u6570\u7ec4 vs \u5b57\u7b26\u6307\u9488<\/h4>\n

    #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
    \n{<\/span>
    \n char<\/span> arr[<\/span>]<\/span> =<\/span> "hello bit."<\/span>;<\/span> \/\/ \u5b57\u7b26\u6570\u7ec4：\u5185\u5bb9\u53ef\u4fee\u6539<\/span>
    \n const<\/span> char<\/span> *<\/span>p =<\/span> "hello bit."<\/span>;<\/span> \/\/ \u6307\u5411\u5b57\u7b26\u4e32\u5b57\u9762\u91cf：\u5185\u5bb9\u4e0d\u53ef\u4fee\u6539<\/span><\/p>\n

    arr[<\/span>0<\/span>]<\/span> =<\/span> 'H'<\/span>;<\/span>
    \n printf<\/span>(<\/span>"arr = %s\\\\n"<\/span>,<\/span> arr)<\/span>;<\/span>
    \n printf<\/span>(<\/span>"p = %s\\\\n"<\/span>,<\/span> p)<\/span>;<\/span><\/p>\n

    printf<\/span>(<\/span>"sizeof(arr) = %zu\\\\n"<\/span>,<\/span> sizeof<\/span>(<\/span>arr)<\/span>)<\/span>;<\/span>
    \n printf<\/span>(<\/span>"sizeof(p) = %zu\\\\n"<\/span>,<\/span> sizeof<\/span>(<\/span>p)<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ p[0] = 'H'; \/\/ \u9519\u8bef：\u4fee\u6539\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u662f\u672a\u5b9a\u4e49\u884c\u4e3a<\/span><\/p>\n

    return<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    \u8f93\u51fa\u793a\u4f8b：<\/p>\n

    arr = Hello bit.
    \np = hello bit.
    \nsizeof(arr) = 12
    \nsizeof(p) = 8<\/p>\n

    \u7ed3\u8bba：<\/p>\n

      \n
    • char arr[] = "hello bit."; \u662f\u5b57\u7b26\u6570\u7ec4，\u6709\u72ec\u7acb\u5b58\u50a8\u7a7a\u95f4，\u53ef\u4ee5\u4fee\u6539\u3002<\/li>\n
    • const char *p = "hello bit."; \u662f\u6307\u9488，\u6307\u5411\u5b57\u7b26\u4e32\u5b57\u9762\u91cf，\u4e0d\u80fd\u901a\u8fc7 p \u4fee\u6539\u5185\u5bb9\u3002<\/li>\n
    • sizeof(arr) \u662f\u6574\u4e2a\u6570\u7ec4\u5927\u5c0f，sizeof(p) \u662f\u6307\u9488\u5927\u5c0f\u3002<\/li>\n<\/ul>\n\n\u5bf9\u6bd4\u9879\u5b57\u7b26\u6570\u7ec4 char arr[]\u5b57\u7b26\u6307\u9488 const char *p<\/tr>\n\n\n\n\n\n\n\n\n\n\n
      \u672c\u8d28<\/td>\n\u6570\u7ec4<\/td>\n\u6307\u9488\u53d8\u91cf<\/td>\n<\/tr>\n
      \u5b58\u50a8\u5185\u5bb9<\/td>\n\u5b57\u7b26\u672c\u8eab<\/td>\n\u5730\u5740<\/td>\n<\/tr>\n
      \u53ef\u4fee\u6539\u5185\u5bb9<\/td>\n\u53ef\u4ee5<\/td>\n\u4e0d\u53ef\u4ee5（\u6307\u5411\u5b57\u9762\u91cf\u65f6）<\/td>\n<\/tr>\n
      sizeof<\/td>\n\u6574\u4e2a\u6570\u7ec4\u5927\u5c0f<\/td>\n\u6307\u9488\u5927\u5c0f<\/td>\n<\/tr>\n
      strlen<\/td>\n\u5b57\u7b26\u4e32\u957f\u5ea6<\/td>\n\u5b57\u7b26\u4e32\u957f\u5ea6<\/td>\n<\/tr>\n
      \u6574\u4f53\u8d4b\u503c<\/td>\n\u4e0d\u53ef\u4ee5<\/td>\n\u53ef\u4ee5\u91cd\u65b0\u6307\u5411<\/td>\n<\/tr>\n
      \u81ea\u589e<\/td>\n\u4e0d\u53ef\u4ee5<\/td>\n\u53ef\u4ee5<\/td>\n<\/tr>\n
      \u4f20\u53c2<\/td>\n\u9000\u5316\u4e3a char *<\/td>\n\u672c\u8eab\u5c31\u662f char *<\/td>\n<\/tr>\n
      \u5178\u578b\u7528\u9014<\/td>\n\u53ef\u4fee\u6539\u5b57\u7b26\u4e32\u7f13\u51b2\u533a<\/td>\n\u53ea\u8bfb\u5b57\u7b26\u4e32 \/ \u904d\u5386<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\u64cd\u4f5c\u5b57\u7b26\u6570\u7ec4 char arr[]\u5b57\u7b26\u6307\u9488 const char *p<\/tr>\n\n\n\n\n\n\n
      \u4fee\u6539\u5143\u7d20<\/td>\narr[0] = 'H'; \u5408\u6cd5<\/td>\np[0] = 'H'; \u672a\u5b9a\u4e49\u884c\u4e3a<\/td>\n<\/tr>\n
      \u6574\u4f53\u8d4b\u503c<\/td>\narr = "world"; \u9519\u8bef<\/td>\np = "world"; \u5408\u6cd5<\/td>\n<\/tr>\n
      \u590d\u5236\u5185\u5bb9<\/td>\nstrcpy(dst, arr);<\/td>\nstrcpy(dst, p);<\/td>\n<\/tr>\n
      \u81ea\u589e<\/td>\narr++; \u9519\u8bef<\/td>\np++; \u5408\u6cd5<\/td>\n<\/tr>\n
      \u8fd4\u56de\u5c40\u90e8<\/td>\n\u4e0d\u80fd\u8fd4\u56de\u5c40\u90e8\u6570\u7ec4\u5730\u5740<\/td>\n\u4e0d\u80fd\u8fd4\u56de\u5c40\u90e8\u6570\u7ec4\u5730\u5740<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
      \n

      \u4e8c\u3001\u6570\u7ec4\u6307\u9488\u53d8\u91cf<\/h3>\n

      2.1 \u6570\u7ec4\u6307\u9488\u662f\u4ec0\u4e48？<\/h4>\n

      \u6570\u7ec4\u6307\u9488：\u6307\u5411\u6570\u7ec4\u7684\u6307\u9488\u3002<\/p>\n

      int<\/span> (<\/span>*<\/span>p)<\/span>[<\/span>10<\/span>]<\/span>;<\/span><\/p>\n

      \u8bfb\u6cd5：p \u662f\u4e00\u4e2a\u6307\u9488，\u6307\u5411\u4e00\u4e2a\u201c\u6709 10 \u4e2a int \u5143\u7d20\u7684\u6570\u7ec4\u201d\u3002<\/p>\n

      \u5bf9\u6bd4：<\/p>\n

      int<\/span> *<\/span>p1[<\/span>10<\/span>]<\/span>;<\/span> \/\/ \u6307\u9488\u6570\u7ec4：p1 \u662f\u6570\u7ec4，\u6709 10 \u4e2a\u5143\u7d20，\u6bcf\u4e2a\u5143\u7d20\u662f int *<\/span>
      \nint<\/span> (<\/span>*<\/span>p2)<\/span>[<\/span>10<\/span>]<\/span>;<\/span> \/\/ \u6570\u7ec4\u6307\u9488：p2 \u662f\u6307\u9488，\u6307\u5411 int[10]<\/span><\/p>\n

      \u56e0\u4e3a [] \u7684\u4f18\u5148\u7ea7\u9ad8\u4e8e *，\u6240\u4ee5 int *p1[10] \u5148\u770b p1[10]，\u8bf4\u660e p1 \u662f\u6570\u7ec4；\u800c int (*p2)[10] \u4e2d p2 \u5148\u548c * \u7ed3\u5408，\u8bf4\u660e p2 \u662f\u6307\u9488\u3002<\/p>\n

      2.2 \u6570\u7ec4\u6307\u9488\u7684\u521d\u59cb\u5316<\/h4>\n

      \u6570\u7ec4\u6307\u9488\u7528\u6765\u5b58\u653e\u6570\u7ec4\u7684\u5730\u5740\u3002\u6570\u7ec4\u7684\u5730\u5740\u53ef\u4ee5\u901a\u8fc7 &\u6570\u7ec4\u540d \u83b7\u5f97\u3002<\/p>\n

      #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

      int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
      \n{<\/span>
      \n int<\/span> arr[<\/span>10<\/span>]<\/span> =<\/span> {<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>,<\/span> 6<\/span>,<\/span> 7<\/span>,<\/span> 8<\/span>,<\/span> 9<\/span>}<\/span>;<\/span>
      \n int<\/span> (<\/span>*<\/span>p)<\/span>[<\/span>10<\/span>]<\/span> =<\/span> &<\/span>arr;<\/span><\/p>\n

      printf<\/span>(<\/span>"arr = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>arr)<\/span>;<\/span>
      \n printf<\/span>(<\/span>"&arr = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>&<\/span>arr)<\/span>;<\/span>
      \n printf<\/span>(<\/span>"p = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>p)<\/span>;<\/span>
      \n printf<\/span>(<\/span>"p + 1 = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>(<\/span>p +<\/span> 1<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

      printf<\/span>(<\/span>"sizeof(arr) = %zu\\\\n"<\/span>,<\/span> sizeof<\/span>(<\/span>arr)<\/span>)<\/span>;<\/span>
      \n printf<\/span>(<\/span>"sizeof(p) = %zu\\\\n"<\/span>,<\/span> sizeof<\/span>(<\/span>p)<\/span>)<\/span>;<\/span>
      \n printf<\/span>(<\/span>"sizeof(*p) = %zu\\\\n"<\/span>,<\/span> sizeof<\/span>(<\/span>*<\/span>p)<\/span>)<\/span>;<\/span><\/p>\n

      return<\/span> 0<\/span>;<\/span>
      \n}<\/span><\/p>\n

      \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

      \u8f93\u51fa\u793a\u4f8b：<\/p>\n

      arr = 000000000061FE00
      \n&arr = 000000000061FE00
      \np = 000000000061FE00
      \np + 1 = 000000000061FE28
      \nsizeof(arr) = 40
      \nsizeof(p) = 8
      \nsizeof(*p) = 40<\/p>\n

      \u7ed3\u8bba：<\/p>\n

        \n
      • p + 1 \u8df3\u8fc7\u6574\u4e2a\u6570\u7ec4，\u4e5f\u5c31\u662f 10 * sizeof(int) = 40 \u5b57\u8282\u3002<\/li>\n
      • *p \u5c31\u662f\u6574\u4e2a\u6570\u7ec4，sizeof(*p) \u7b49\u4e8e\u6570\u7ec4\u5927\u5c0f\u3002<\/li>\n
      • \u6570\u7ec4\u6307\u9488\u7684\u6b65\u957f\u7531\u5b83\u6307\u5411\u7684\u6570\u7ec4\u7c7b\u578b\u51b3\u5b9a\u3002<\/li>\n<\/ul>\n\n\u6838\u5fc3\u70b9\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n\n\n\n
        \u672c\u8d28<\/td>\n\u6570\u7ec4\u6307\u9488\u662f\u6307\u9488，\u4e0d\u662f\u6570\u7ec4；\u6307\u5411\u4e00\u4e2a\u6570\u7ec4<\/td>\n<\/tr>\n
        \u7c7b\u578b\u5199\u6cd5<\/td>\nint (*p)[N]; \u8868\u793a p \u6307\u5411 int[N]<\/td>\n<\/tr>\n
        \u4e0e\u6307\u9488\u6570\u7ec4\u533a\u522b<\/td>\nint *p[N]; \u662f\u6307\u9488\u6570\u7ec4；int (*p)[N]; \u662f\u6570\u7ec4\u6307\u9488<\/td>\n<\/tr>\n
        \u4f18\u5148\u7ea7<\/td>\n[] \u9ad8\u4e8e *，\u5fc5\u987b\u52a0\u62ec\u53f7 (*p) \u4fdd\u8bc1 p \u5148\u4e0e * \u7ed3\u5408<\/td>\n<\/tr>\n
        \u6b65\u957f<\/td>\np + 1 \u8df3\u8fc7\u6574\u4e2a\u6570\u7ec4，\u6b65\u957f\u4e3a N * sizeof(\u5143\u7d20\u7c7b\u578b)<\/td>\n<\/tr>\n
        \u89e3\u5f15\u7528<\/td>\n*p \u5f97\u5230\u6574\u4e2a\u6570\u7ec4；p[i] \u5f97\u5230\u7b2c i \u4e2a\u6570\u7ec4<\/td>\n<\/tr>\n
        \u521d\u59cb\u5316<\/td>\n\u7528 &arr \u6216\u4e8c\u7ef4\u6570\u7ec4\u540d arr \u521d\u59cb\u5316<\/td>\n<\/tr>\n
        \u4f20\u53c2<\/td>\n\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u672c\u8d28\u662f\u4f20\u9012\u9996\u884c\u5730\u5740，\u5f62\u53c2\u5199 int (*p)[N]<\/td>\n<\/tr>\n
        \u7528\u9014<\/td>\n\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u3001\u884c\u6307\u9488\u3001\u52a8\u6001\u4e8c\u7ef4\u6570\u7ec4\u3001\u6a21\u62df\u4e8c\u7ef4\u6570\u7ec4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        2.3 \u6570\u7ec4\u6307\u9488\u7c7b\u578b\u89e3\u6790<\/h4>\n

        int<\/span> (<\/span>*<\/span>p)<\/span>[<\/span>10<\/span>]<\/span>;<\/span><\/p>\n

        \u62c6\u5f00\u770b：<\/p>\n

          \n
        • p：\u53d8\u91cf\u540d\u3002<\/li>\n
        • *p：\u8bf4\u660e p \u662f\u6307\u9488\u3002<\/li>\n
        • (*p)[10]：\u8bf4\u660e p \u6307\u5411\u4e00\u4e2a\u542b\u6709 10 \u4e2a\u5143\u7d20\u7684\u6570\u7ec4\u3002<\/li>\n
        • int (*p)[10]：\u8bf4\u660e\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u662f int\u3002<\/li>\n<\/ul>\n
          2.3.1 \u4ece\u5185\u5230\u5916\u8bfb\u7c7b\u578b<\/h5>\n

          \u8bfb\u590d\u6742\u6307\u9488\u7c7b\u578b\u65f6，\u4ece\u53d8\u91cf\u540d\u5f00\u59cb，\u5148\u770b\u5b83\u548c\u8c01\u7ed3\u5408：<\/p>\n

        • p \u5148\u548c * \u7ed3\u5408 \u2192 p \u662f\u6307\u9488\u3002<\/li>\n
        • \u518d\u548c [10] \u7ed3\u5408 \u2192 \u6307\u5411\u4e00\u4e2a\u6709 10 \u4e2a\u5143\u7d20\u7684\u6570\u7ec4\u3002<\/li>\n
        • \u6700\u540e\u770b\u5143\u7d20\u7c7b\u578b int \u2192 \u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u662f int\u3002<\/li>\n

          \u6240\u4ee5 p \u7684\u7c7b\u578b\u662f：\u6307\u5411 int[10] \u7684\u6307\u9488，\u5373 int (*)[10]\u3002<\/p>\n

          2.3.2 \u5bf9\u6bd4\u6307\u9488\u6570\u7ec4<\/h5>\n\n\u5199\u6cd5\u542b\u4e49\u8bfb\u6cd5<\/tr>\n\n\n\n
          int *p[10];<\/td>\n\u6307\u9488\u6570\u7ec4<\/td>\np \u662f\u6570\u7ec4，\u6709 10 \u4e2a\u5143\u7d20，\u6bcf\u4e2a\u5143\u7d20\u662f int *<\/td>\n<\/tr>\n
          int (*p)[10];<\/td>\n\u6570\u7ec4\u6307\u9488<\/td>\np \u662f\u6307\u9488，\u6307\u5411\u4e00\u4e2a int[10] \u6570\u7ec4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u533a\u522b\u5728\u4e8e\u62ec\u53f7：int *p[10] \u4e2d [] \u4f18\u5148\u7ea7\u9ad8，p \u5148\u548c [] \u7ed3\u5408；int (*p)[10] \u4e2d p \u5148\u548c * \u7ed3\u5408\u3002<\/p>\n

          2.3.3 \u4f18\u5148\u7ea7\u4e0e\u62ec\u53f7<\/h5>\n

          [] \u7684\u4f18\u5148\u7ea7\u9ad8\u4e8e *\u3002 \u5982\u679c\u5199\u6210 int *p[10];，\u7f16\u8bd1\u5668\u4f1a\u7406\u89e3\u4e3a int *(p[10]);，\u5373 p \u662f\u6570\u7ec4\u3002 \u8981\u5f97\u5230\u201c\u6307\u9488\u201d，\u5fc5\u987b\u52a0\u62ec\u53f7：int (*p)[10];\u3002<\/p>\n

          2.3.4 \u6b65\u957f\u4e0e\u89e3\u5f15\u7528<\/h5>\n

          int<\/span> arr[<\/span>5<\/span>]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span>
          \nint<\/span> (<\/span>*<\/span>p)<\/span>[<\/span>5<\/span>]<\/span> =<\/span> &<\/span>arr;<\/span><\/p>\n

          printf<\/span>(<\/span>"p = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>p)<\/span>;<\/span>
          \nprintf<\/span>(<\/span>"p + 1 = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>(<\/span>p +<\/span> 1<\/span>)<\/span>)<\/span>;<\/span>
          \nprintf<\/span>(<\/span>"sizeof(*p) = %zu\\\\n"<\/span>,<\/span> sizeof<\/span>(<\/span>*<\/span>p)<\/span>)<\/span>;<\/span><\/p>\n

            \n
          • p + 1 \u8df3\u8fc7\u6574\u4e2a\u6570\u7ec4，\u6b65\u957f\u662f 5 * sizeof(int)\u3002<\/li>\n
          • *p \u5f97\u5230\u6574\u4e2a\u6570\u7ec4，sizeof(*p) \u7b49\u4e8e sizeof(arr)\u3002<\/li>\n
          • (*p)[i] \u8bbf\u95ee\u6570\u7ec4\u7b2c i \u4e2a\u5143\u7d20，\u7b49\u4ef7\u4e8e arr[i]\u3002<\/li>\n<\/ul>\n
            2.3.5 \u7528 typedef \u7b80\u5316<\/h5>\n

            typedef<\/span> int<\/span> (<\/span>*<\/span>parr_t<\/span>)<\/span>[<\/span>10<\/span>]<\/span>;<\/span> \/\/ parr_t \u662f\u201c\u6307\u5411 int[10] \u7684\u6307\u9488\u201d\u7c7b\u578b<\/span>
            \nparr_t<\/span> p =<\/span> &<\/span>arr;<\/span><\/p>\n

            \u65b0\u7684\u7c7b\u578b\u540d parr_t \u5fc5\u987b\u5199\u5728 * \u7684\u53f3\u8fb9\u3002<\/p>\n

            2.3.6 \u5e38\u89c1\u9519\u8bef<\/h5>\n

            int<\/span> *<\/span>p1[<\/span>10<\/span>]<\/span>;<\/span> \/\/ \u6307\u9488\u6570\u7ec4：\u6570\u7ec4，\u5143\u7d20\u662f int *<\/span>
            \nint<\/span> (<\/span>*<\/span>p2)<\/span>[<\/span>10<\/span>]<\/span>;<\/span> \/\/ \u6570\u7ec4\u6307\u9488：\u6307\u9488，\u6307\u5411 int[10]<\/span><\/p>\n

            \/\/ int (*p3)[10] = arr; \/\/ \u5982\u679c arr \u662f int[10]，\u5e94\u8be5\u5199 &arr<\/span>
            \n\/\/ int (*p4)[10] = &arr; \/\/ \u6b63\u786e<\/span><\/p>\n

              \n
            • \u5fd8\u8bb0\u62ec\u53f7：int *p[10]; \u53d8\u6210\u6307\u9488\u6570\u7ec4\u3002<\/li>\n
            • \u521d\u59cb\u5316\u65f6\u6f0f\u6389 &：\u6570\u7ec4\u540d arr \u9000\u5316\u4e3a int *，\u4e0d\u80fd\u76f4\u63a5\u8d4b\u7ed9 int (*)[10]\u3002<\/li>\n
            • \u628a\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u5199\u6210 int **：\u7c7b\u578b\u4e0d\u5339\u914d\u3002<\/li>\n<\/ul>\n

              \u4e09\u3001\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u7684\u672c\u8d28<\/h3>\n

              3.1 \u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u770b\u4f5c\u201c\u6570\u7ec4\u7684\u6570\u7ec4\u201d<\/h4>\n

              \u5bf9\u4e8e int arr[3][5];<\/p>\n

                \n
              • arr \u662f\u4e8c\u7ef4\u6570\u7ec4，\u6709 3 \u884c，\u6bcf\u884c 5 \u4e2a int\u3002<\/li>\n
              • arr \u7684\u9996\u5143\u7d20\u662f\u7b2c\u4e00\u884c，\u7c7b\u578b\u662f int[5]\u3002<\/li>\n
              • \u6570\u7ec4\u540d arr \u5728\u5927\u591a\u6570\u8868\u8fbe\u5f0f\u4e2d\u9000\u5316\u4e3a\u9996\u5143\u7d20\u5730\u5740，\u4e5f\u5c31\u662f\u7b2c\u4e00\u884c\u7684\u5730\u5740，\u7c7b\u578b\u662f int (*)[5]\u3002<\/li>\n
              • arr + 1 \u8df3\u8fc7\u4e00\u6574\u884c\u3002<\/li>\n<\/ul>\n

                3.2 \u5f62\u53c2\u5199\u6210\u6570\u7ec4\u5f62\u5f0f<\/h4>\n

                #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

                void<\/span> print_matrix<\/span>(<\/span>int<\/span> a[<\/span>3<\/span>]<\/span>[<\/span>5<\/span>]<\/span>,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>
                \n{<\/span>
                \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> rows;<\/span> ++<\/span>i)<\/span> {<\/span>
                \n for<\/span> (<\/span>int<\/span> j =<\/span> 0<\/span>;<\/span> j <<\/span> cols;<\/span> ++<\/span>j)<\/span> {<\/span>
                \n printf<\/span>(<\/span>"%d "<\/span>,<\/span> a[<\/span>i]<\/span>[<\/span>j]<\/span>)<\/span>;<\/span>
                \n }<\/span>
                \n printf<\/span>(<\/span>"\\\\n"<\/span>)<\/span>;<\/span>
                \n }<\/span>
                \n}<\/span><\/p>\n

                int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                \n{<\/span>
                \n int<\/span> arr[<\/span>3<\/span>]<\/span>[<\/span>5<\/span>]<\/span> =<\/span> {<\/span>
                \n {<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>}<\/span>,<\/span>
                \n {<\/span>2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>,<\/span> 6<\/span>}<\/span>,<\/span>
                \n {<\/span>3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>,<\/span> 6<\/span>,<\/span> 7<\/span>}<\/span>
                \n }<\/span>;<\/span><\/p>\n

                print_matrix<\/span>(<\/span>arr,<\/span> 3<\/span>,<\/span> 5<\/span>)<\/span>;<\/span>
                \n return<\/span> 0<\/span>;<\/span>
                \n}<\/span><\/p>\n

                \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                \u7b49\u4ef7\u5199\u6cd5<\/h5>\n

                \u4e0b\u9762\u4e09\u79cd\u5f62\u53c2\u5b8c\u5168\u7b49\u4ef7：<\/p>\n

                void<\/span> f<\/span>(<\/span>int<\/span> a[<\/span>3<\/span>]<\/span>[<\/span>5<\/span>]<\/span>,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>;<\/span>
                \nvoid<\/span> f<\/span>(<\/span>int<\/span> a[<\/span>]<\/span>[<\/span>5<\/span>]<\/span>,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>;<\/span>
                \nvoid<\/span> f<\/span>(<\/span>int<\/span> (<\/span>*<\/span>a)<\/span>[<\/span>5<\/span>]<\/span>,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>;<\/span><\/p>\n

                  \n
                • \u7b2c\u4e00\u7ef4\u53ef\u7701，\u7b2c\u4e8c\u7ef4\u4e0d\u80fd\u7701\u3002<\/li>\n
                • \u7f16\u8bd1\u5668\u6309 int (*a)[5] \u5904\u7406\u3002<\/li>\n<\/ul>\n
                  \u7528\u5b8f\u6216 typedef \u7b80\u5316<\/h5>\n

                  #<\/span>define<\/span> COLS<\/span> 5<\/span><\/span><\/span><\/p>\n

                  void<\/span> f<\/span>(<\/span>int<\/span> a[<\/span>]<\/span>[<\/span>COLS]<\/span>,<\/span> int<\/span> rows)<\/span>;<\/span><\/p>\n

                  typedef<\/span> int<\/span> Row[<\/span>COLS]<\/span>;<\/span>
                  \nvoid<\/span> f<\/span>(<\/span>Row a[<\/span>]<\/span>,<\/span> int<\/span> rows)<\/span>;<\/span><\/p>\n

                  \u5e38\u89c1\u9519\u8bef<\/h5>\n

                  void<\/span> f<\/span>(<\/span>int<\/span> a[<\/span>]<\/span>[<\/span>]<\/span>,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>;<\/span> \/\/ \u9519\u8bef：\u7b2c\u4e8c\u7ef4\u4e0d\u80fd\u7701<\/span>
                  \nvoid<\/span> f<\/span>(<\/span>int<\/span> *<\/span>*<\/span>a,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>;<\/span> \/\/ \u7c7b\u578b\u4e0d\u5339\u914d<\/span>
                  \nint<\/span> rows =<\/span> sizeof<\/span>(<\/span>a)<\/span> \/<\/span> sizeof<\/span>(<\/span>a[<\/span>0<\/span>]<\/span>)<\/span>;<\/span> \/\/ \u9519\u8bef：\u5f97\u5230\u6307\u9488\u9664\u6cd5<\/span><\/p>\n

                  \u603b\u7ed3<\/h5>\n\n\u5199\u6cd5\u662f\u5426\u5408\u6cd5\u7b49\u4ef7\u7c7b\u578b<\/tr>\n\n\n\n\n\n\n
                  int a[3][5]<\/td>\n\u5408\u6cd5<\/td>\nint (*a)[5]<\/td>\n<\/tr>\n
                  int a[][5]<\/td>\n\u5408\u6cd5<\/td>\nint (*a)[5]<\/td>\n<\/tr>\n
                  int a[5][]<\/td>\n\u975e\u6cd5<\/td>\n\u7b2c\u4e8c\u7ef4\u4e0d\u80fd\u7701<\/td>\n<\/tr>\n
                  int **a<\/td>\n\u7c7b\u578b\u4e0d\u5339\u914d<\/td>\n\u7528\u4e8e\u6307\u9488\u6570\u7ec4\u6216\u52a8\u6001\u4e8c\u7ef4\u6570\u7ec4<\/td>\n<\/tr>\n
                  int (*a)[5]<\/td>\n\u5408\u6cd5<\/td>\n\u672c\u8d28\u5f62\u5f0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  \u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2：\u7b2c\u4e00\u7ef4\u53ef\u7701，\u7b2c\u4e8c\u7ef4\u4e0d\u80fd\u7701；\u884c\u6570\u5fc5\u987b\u4f20，\u5217\u6570\u53ef\u63a8\u51fa\u3002<\/p>\n

                  3.3 \u5f62\u53c2\u5199\u6210\u6307\u9488\u5f62\u5f0f<\/h4>\n

                  #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

                  void<\/span> print_matrix<\/span>(<\/span>int<\/span> (<\/span>*<\/span>p)<\/span>[<\/span>5<\/span>]<\/span>,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>
                  \n{<\/span>
                  \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> rows;<\/span> ++<\/span>i)<\/span> {<\/span>
                  \n for<\/span> (<\/span>int<\/span> j =<\/span> 0<\/span>;<\/span> j <<\/span> cols;<\/span> ++<\/span>j)<\/span> {<\/span>
                  \n printf<\/span>(<\/span>"%d "<\/span>,<\/span> *<\/span>(<\/span>*<\/span>(<\/span>p +<\/span> i)<\/span> +<\/span> j)<\/span>)<\/span>;<\/span>
                  \n }<\/span>
                  \n printf<\/span>(<\/span>"\\\\n"<\/span>)<\/span>;<\/span>
                  \n }<\/span>
                  \n}<\/span><\/p>\n

                  int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                  \n{<\/span>
                  \n int<\/span> arr[<\/span>3<\/span>]<\/span>[<\/span>5<\/span>]<\/span> =<\/span> {<\/span>
                  \n {<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>}<\/span>,<\/span>
                  \n {<\/span>2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>,<\/span> 6<\/span>}<\/span>,<\/span>
                  \n {<\/span>3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>,<\/span> 6<\/span>,<\/span> 7<\/span>}<\/span>
                  \n }<\/span>;<\/span><\/p>\n

                  print_matrix<\/span>(<\/span>arr,<\/span> 3<\/span>,<\/span> 5<\/span>)<\/span>;<\/span>
                  \n return<\/span> 0<\/span>;<\/span>
                  \n}<\/span><\/p>\n

                  \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                  \u8fd9\u4e24\u79cd\u5199\u6cd5\u672c\u8d28\u7b49\u4ef7，\u7f16\u8bd1\u5668\u90fd\u6309 int (*)[5] \u5904\u7406\u3002<\/p>\n

                  \u6307\u9488\u5f62\u5f0f\u89e3\u6790<\/h5>\n
                    \n
                  • int (*p)[5]：p \u662f\u6307\u9488，\u6307\u5411 int[5]\u3002<\/li>\n
                  • p + i：\u8df3\u8fc7 i \u884c，\u6307\u5411\u7b2c i \u884c\u3002<\/li>\n
                  • *(p + i)：\u5f97\u5230\u7b2c i \u884c\u6570\u7ec4，\u7c7b\u578b\u4e3a int[5]\u3002<\/li>\n
                  • *(p + i) + j：\u7b2c i \u884c\u7b2c j \u4e2a\u5143\u7d20\u7684\u5730\u5740\u3002<\/li>\n
                  • *(*(p + i) + j)：\u7b2c i \u884c\u7b2c j \u4e2a\u5143\u7d20\u7684\u503c\u3002<\/li>\n<\/ul>\n
                    \u7b49\u4ef7\u5199\u6cd5<\/h5>\n

                    p[<\/span>i]<\/span>[<\/span>j]<\/span> \/\/ \u4e0b\u6807\u5f62\u5f0f<\/span>
                    \n*<\/span>(<\/span>*<\/span>(<\/span>p +<\/span> i)<\/span> +<\/span> j)<\/span> \/\/ \u6307\u9488\u5f62\u5f0f<\/span><\/p>\n

                    \u4e24\u8005\u5b8c\u5168\u7b49\u4ef7\u3002<\/p>\n

                    \u5f62\u53c2\u5199\u6210\u6307\u9488\u5f62\u5f0f，\u66f4\u6e05\u695a\u5730\u8868\u8fbe\u201c\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u4f20\u9012\u7684\u662f\u884c\u6307\u9488\u201d\u3002<\/p>\n

                    3.4 \u4e3a\u4ec0\u4e48\u4e0d\u80fd\u5199\u6210 int **？<\/h4>\n

                    \u771f\u6b63\u4e8c\u7ef4\u6570\u7ec4 int arr[3][5] \u7684\u5185\u5b58\u662f\u8fde\u7eed\u7684，arr \u9000\u5316\u4e3a int (*)[5]，\u4e0d\u662f int **\u3002<\/p>\n

                    \u5185\u5b58\u5e03\u5c40\u5bf9\u6bd4<\/h5>\n

                    int arr[3][5] int **p
                    \n+—-+—-+—-+—-+ +—-+ +—-+—-+—-+—-+
                    \n| 1 | 2 | 3 | 4 | | * | —> | 1 | 2 | 3 | 4 |
                    \n+—-+—-+—-+—-+ +—-+ +—-+—-+—-+—-+
                    \n| 5 | 6 | 7 | 8 | | * | —> | 5 | 6 | 7 | 8 |
                    \n+—-+—-+—-+—-+ +—-+ +—-+—-+—-+—-+
                    \n| 9 | 10 | 11 | 12 | | * | —> | 9 | 10 | 11 | 12 |
                    \n+—-+—-+—-+—-+ +—-+ +—-+—-+—-+—-+
                    \n \u8fde\u7eed\u4e00\u6574\u5757 \u6307\u9488\u6570\u7ec4 + \u6bcf\u884c\u72ec\u7acb\u5206\u914d<\/p>\n

                      \n
                    • \u771f\u6b63\u4e8c\u7ef4\u6570\u7ec4：\u4e00\u6574\u5757\u8fde\u7eed\u5185\u5b58，arr + 1 \u8df3\u8fc7\u4e00\u884c\u3002<\/li>\n
                    • int **：\u5148\u6709\u4e00\u4e2a\u6307\u9488\u6570\u7ec4，\u6bcf\u4e2a\u6307\u9488\u518d\u6307\u5411\u4e00\u5757\u72ec\u7acb\u5185\u5b58，\u884c\u4e0e\u884c\u4e0d\u4e00\u5b9a\u8fde\u7eed\u3002<\/li>\n<\/ul>\n
                      \u7c7b\u578b\u5bf9\u6bd4<\/h5>\n\n\u5199\u6cd5\u7c7b\u578b\u542b\u4e49<\/tr>\n\n\n\n\n
                      int arr[3][5]<\/td>\nint (*)[5]<\/td>\n\u6307\u5411\u4e00\u884c（int[5]）\u7684\u6307\u9488<\/td>\n<\/tr>\n
                      int **p<\/td>\nint **<\/td>\n\u6307\u5411 int * \u7684\u6307\u9488<\/td>\n<\/tr>\n
                      int *p[3]<\/td>\nint *[3]<\/td>\n\u6307\u9488\u6570\u7ec4，\u5143\u7d20\u662f int *<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                      \u5178\u578b\u8bef\u533a<\/h5>\n

                      void<\/span> f<\/span>(<\/span>int<\/span> *<\/span>*<\/span>p,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>;<\/span> \/\/ \u9519\u8bef\u5339\u914d\u771f\u6b63\u4e8c\u7ef4\u6570\u7ec4<\/span><\/p>\n

                      int<\/span> arr[<\/span>3<\/span>]<\/span>[<\/span>5<\/span>]<\/span>;<\/span>
                      \nf<\/span>(<\/span>arr,<\/span> 3<\/span>,<\/span> 5<\/span>)<\/span>;<\/span> \/\/ \u7c7b\u578b\u4e0d\u5339\u914d：int (*)[5] \u4e0d\u80fd\u4f20\u7ed9 int **<\/span><\/p>\n

                      int ** \u7684\u6b63\u786e\u7528\u9014<\/h5>\n

                      \/\/ \u7528\u9014\u4e00：\u6307\u9488\u6570\u7ec4<\/span>
                      \nint<\/span> a =<\/span> 1<\/span>,<\/span> b =<\/span> 2<\/span>,<\/span> c =<\/span> 3<\/span>;<\/span>
                      \nint<\/span> *<\/span>p[<\/span>3<\/span>]<\/span> =<\/span> {<\/span>&<\/span>a,<\/span> &<\/span>b,<\/span> &<\/span>c}<\/span>;<\/span> \/\/ p \u662f int *[3]<\/span><\/p>\n

                      \/\/ \u7528\u9014\u4e8c：\u52a8\u6001\u4e8c\u7ef4\u6570\u7ec4<\/span>
                      \nint<\/span> *<\/span>*<\/span>m =<\/span> malloc<\/span>(<\/span>rows *<\/span> sizeof<\/span>(<\/span>int<\/span> *<\/span>)<\/span>)<\/span>;<\/span>
                      \nfor<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> rows;<\/span> ++<\/span>i)<\/span>
                      \n m[<\/span>i]<\/span> =<\/span> malloc<\/span>(<\/span>cols *<\/span> sizeof<\/span>(<\/span>int<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

                      \u56db\u3001\u51fd\u6570\u6307\u9488\u53d8\u91cf<\/h3>\n

                      4.1 \u51fd\u6570\u4e5f\u6709\u5730\u5740<\/h4>\n

                      \u51fd\u6570\u540d\u5728\u5927\u591a\u6570\u8868\u8fbe\u5f0f\u4e2d\u4f1a\u8f6c\u6362\u4e3a\u51fd\u6570\u5730\u5740\u3002<\/p>\n

                      \n

                      #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

                      void<\/span> test<\/span>(<\/span>void<\/span>)<\/span>
                      \n{<\/span>
                      \n printf<\/span>(<\/span>"hehe\\\\n"<\/span>)<\/span>;<\/span>
                      \n}<\/span><\/p>\n

                      int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                      \n{<\/span>
                      \n printf<\/span>(<\/span>"test = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>test)<\/span>;<\/span>
                      \n printf<\/span>(<\/span>"&test = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>&<\/span>test)<\/span>;<\/span>
                      \n return<\/span> 0<\/span>;<\/span>
                      \n}<\/span><\/p>\n

                      \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                      \u901a\u5e38 test \u548c &test \u8f93\u51fa\u76f8\u540c\u3002<\/p>\n

                      4.2 \u5b9a\u4e49\u51fd\u6570\u6307\u9488<\/h4>\n

                      int<\/span> (<\/span>*<\/span>pf)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span>;<\/span><\/p>\n

                      \u8bfb\u6cd5：pf \u662f\u4e00\u4e2a\u6307\u9488，\u6307\u5411\u201c\u53c2\u6570\u4e3a (int, int)，\u8fd4\u56de\u503c\u4e3a int\u201d\u7684\u51fd\u6570\u3002<\/p>\n

                      \u5b8c\u6574\u793a\u4f8b：<\/p>\n

                      #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

                      int<\/span> Add<\/span>(<\/span>int<\/span> x,<\/span> int<\/span> y)<\/span>
                      \n{<\/span>
                      \n return<\/span> x +<\/span> y;<\/span>
                      \n}<\/span><\/p>\n

                      int<\/span> Sub<\/span>(<\/span>int<\/span> x,<\/span> int<\/span> y)<\/span>
                      \n{<\/span>
                      \n return<\/span> x –<\/span> y;<\/span>
                      \n}<\/span><\/p>\n

                      int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                      \n{<\/span>
                      \n int<\/span> (<\/span>*<\/span>pf)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span> =<\/span> Add;<\/span><\/p>\n

                      printf<\/span>(<\/span>"Add(2, 3) = %d\\\\n"<\/span>,<\/span> Add<\/span>(<\/span>2<\/span>,<\/span> 3<\/span>)<\/span>)<\/span>;<\/span>
                      \n printf<\/span>(<\/span>"pf(2, 3) = %d\\\\n"<\/span>,<\/span> pf<\/span>(<\/span>2<\/span>,<\/span> 3<\/span>)<\/span>)<\/span>;<\/span>
                      \n printf<\/span>(<\/span>"(*pf)(2, 3) = %d\\\\n"<\/span>,<\/span> (<\/span>*<\/span>pf)<\/span>(<\/span>2<\/span>,<\/span> 3<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

                      pf =<\/span> Sub;<\/span>
                      \n printf<\/span>(<\/span>"pf(5, 3) = %d\\\\n"<\/span>,<\/span> pf<\/span>(<\/span>5<\/span>,<\/span> 3<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

                      return<\/span> 0<\/span>;<\/span>
                      \n}<\/span><\/p>\n

                      \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                      \u8f93\u51fa\u793a\u4f8b：<\/p>\n

                      Add(2, 3) = 5
                      \npf(2, 3) = 5
                      \n(*pf)(2, 3) = 5
                      \npf(5, 3) = 2<\/p>\n

                      \u7ed3\u8bba：<\/p>\n

                        \n
                      • pf(2, 3) \u548c (*pf)(2, 3) \u90fd\u5408\u6cd5\u3002<\/li>\n
                      • \u51fd\u6570\u6307\u9488\u53ef\u4ee5\u50cf\u53d8\u91cf\u4e00\u6837\u91cd\u65b0\u8d4b\u503c，\u6307\u5411\u4e0d\u540c\u51fd\u6570\u3002<\/li>\n<\/ul>\n
                        4.2.1 \u521d\u59cb\u5316\u65b9\u5f0f<\/h5>\n

                        \u51fd\u6570\u6307\u9488\u53ef\u4ee5\u7528\u51fd\u6570\u540d\u521d\u59cb\u5316，\u4e5f\u53ef\u4ee5\u7528 &\u51fd\u6570\u540d \u521d\u59cb\u5316：<\/p>\n

                        int<\/span> (<\/span>*<\/span>pf1)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span> =<\/span> Add;<\/span>
                        \nint<\/span> (<\/span>*<\/span>pf2)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span> =<\/span> &<\/span>Add;<\/span><\/p>\n

                        \u4e24\u79cd\u5199\u6cd5\u7b49\u4ef7，\u56e0\u4e3a\u51fd\u6570\u540d\u5728\u8868\u8fbe\u5f0f\u4e2d\u4f1a\u8f6c\u6362\u4e3a\u51fd\u6570\u5730\u5740\u3002<\/p>\n

                        4.2.2 \u8c03\u7528\u65b9\u5f0f<\/h5>\n

                        \u4e0b\u9762\u4e24\u79cd\u8c03\u7528\u5b8c\u5168\u7b49\u4ef7：<\/p>\n

                        pf<\/span>(<\/span>2<\/span>,<\/span> 3<\/span>)<\/span>;<\/span>
                        \n(<\/span>*<\/span>pf)<\/span>(<\/span>2<\/span>,<\/span> 3<\/span>)<\/span>;<\/span><\/p>\n

                          \n
                        • pf(2, 3)：\u76f4\u63a5\u901a\u8fc7\u51fd\u6570\u6307\u9488\u8c03\u7528\u3002<\/li>\n
                        • (*pf)(2, 3)：\u5148\u89e3\u5f15\u7528\u5f97\u5230\u51fd\u6570，\u518d\u8c03\u7528\u3002<\/li>\n<\/ul>\n

                          C \u8bed\u8a00\u5141\u8bb8\u7701\u7565 *，\u6240\u4ee5\u4e24\u79cd\u5199\u6cd5\u90fd\u5408\u6cd5\u3002<\/p>\n

                          4.2.3 \u53ef\u4ee5\u91cd\u65b0\u8d4b\u503c<\/h5>\n

                          \u51fd\u6570\u6307\u9488\u662f\u53d8\u91cf，\u53ef\u4ee5\u91cd\u65b0\u6307\u5411\u5176\u4ed6\u51fd\u6570，\u53ea\u8981\u7b7e\u540d\u4e00\u81f4：<\/p>\n

                          pf =<\/span> Sub;<\/span>
                          \nprintf<\/span>(<\/span>"%d\\\\n"<\/span>,<\/span> pf<\/span>(<\/span>5<\/span>,<\/span> 3<\/span>)<\/span>)<\/span>;<\/span> \/\/ \u8f93\u51fa 2<\/span><\/p>\n

                          4.2.4 \u5e38\u89c1\u9519\u8bef<\/h5>\n\n\u9519\u8bef\u5199\u6cd5\u95ee\u9898<\/tr>\n\n\n\n\n\n
                          int *pf(int, int);<\/td>\n\u58f0\u660e\u4e86\u51fd\u6570，\u4e0d\u662f\u51fd\u6570\u6307\u9488<\/td>\n<\/tr>\n
                          int (*pf)(int, int) = Add();<\/td>\nAdd() \u662f\u8c03\u7528\u7ed3\u679c，\u4e0d\u662f\u51fd\u6570\u5730\u5740<\/td>\n<\/tr>\n
                          pf = Add(2, 3);<\/td>\n\u628a\u8fd4\u56de\u503c\u8d4b\u7ed9\u51fd\u6570\u6307\u9488，\u7c7b\u578b\u4e0d\u5339\u914d<\/td>\n<\/tr>\n
                          \u8c03\u7528\u65f6\u5199\u6210 *pf(2, 3);<\/td>\n\u4f18\u5148\u7ea7\u95ee\u9898，\u7b49\u4ef7\u4e8e *(pf(2, 3))，\u4e0d\u662f\u8c03\u7528\u51fd\u6570\u6307\u9488<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                          4.3 \u51fd\u6570\u6307\u9488\u4f5c\u4e3a\u53c2\u6570<\/h4>\n

                          \u51fd\u6570\u6307\u9488\u6700\u5e38\u89c1\u7684\u7528\u9014\u4e4b\u4e00\u662f\u201c\u56de\u8c03\u51fd\u6570\u201d\u3002<\/p>\n

                          #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

                          int<\/span> Add<\/span>(<\/span>int<\/span> x,<\/span> int<\/span> y)<\/span>
                          \n{<\/span>
                          \n return<\/span> x +<\/span> y;<\/span>
                          \n}<\/span><\/p>\n

                          int<\/span> Sub<\/span>(<\/span>int<\/span> x,<\/span> int<\/span> y)<\/span>
                          \n{<\/span>
                          \n return<\/span> x –<\/span> y;<\/span>
                          \n}<\/span><\/p>\n

                          int<\/span> Calc<\/span>(<\/span>int<\/span> (<\/span>*<\/span>op)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span>,<\/span> int<\/span> x,<\/span> int<\/span> y)<\/span>
                          \n{<\/span>
                          \n return<\/span> op<\/span>(<\/span>x,<\/span> y)<\/span>;<\/span>
                          \n}<\/span><\/p>\n

                          int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                          \n{<\/span>
                          \n printf<\/span>(<\/span>"Calc(Add, 10, 3) = %d\\\\n"<\/span>,<\/span> Calc<\/span>(<\/span>Add,<\/span> 10<\/span>,<\/span> 3<\/span>)<\/span>)<\/span>;<\/span>
                          \n printf<\/span>(<\/span>"Calc(Sub, 10, 3) = %d\\\\n"<\/span>,<\/span> Calc<\/span>(<\/span>Sub,<\/span> 10<\/span>,<\/span> 3<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

                          return<\/span> 0<\/span>;<\/span>
                          \n}<\/span><\/p>\n

                          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                          \u8f93\u51fa\u793a\u4f8b：<\/p>\n

                          Calc(Add, 10, 3) = 13
                          \nCalc(Sub, 10, 3) = 7<\/p>\n

                          4.4 \u4e24\u6bb5\u6709\u8da3\u7684\u4ee3\u7801<\/h4>\n

                          \u300aC\u9677\u9631\u548c\u7f3a\u9677\u300b\u4e2d\u6709\u4e24\u6bb5\u7ecf\u5178\u4ee3\u7801：<\/p>\n

                          (<\/span>*<\/span>(<\/span>void<\/span> (<\/span>*<\/span>)<\/span>(<\/span>)<\/span>)<\/span>0<\/span>)<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                          void<\/span> (<\/span>*<\/span>signal<\/span>(<\/span>int<\/span>,<\/span> void<\/span> (<\/span>*<\/span>)<\/span>(<\/span>int<\/span>)<\/span>)<\/span>)<\/span>(<\/span>int<\/span>)<\/span>;<\/span><\/p>\n

                          \u7b2c\u4e00\u6bb5\u4ee3\u7801：\u628a 0 \u5f3a\u5236\u8f6c\u6362\u4e3a\u201c\u65e0\u53c2\u6570\u3001\u8fd4\u56de void \u7684\u51fd\u6570\u6307\u9488\u201d，\u7136\u540e\u8c03\u7528\u5b83\u3002 \u7b2c\u4e8c\u6bb5\u4ee3\u7801：signal \u662f\u4e00\u4e2a\u51fd\u6570，\u53c2\u6570\u4e3a int \u548c void (*)(int)，\u8fd4\u56de\u7c7b\u578b\u662f void (*)(int)\u3002<\/p>\n

                          \u7528 typedef \u53ef\u4ee5\u7b80\u5316：<\/p>\n

                          typedef<\/span> void<\/span> (<\/span>*<\/span>pfun_t<\/span>)<\/span>(<\/span>int<\/span>)<\/span>;<\/span>
                          \npfun_t<\/span> signal<\/span>(<\/span>int<\/span>,<\/span> pfun_t<\/span>)<\/span>;<\/span><\/p>\n

                          typedef \u7528\u6765\u7ed9\u7c7b\u578b\u8d77\u522b\u540d\u3002\u5bf9\u4e8e\u51fd\u6570\u6307\u9488：<\/p>\n

                          typedef<\/span> void<\/span> (<\/span>*<\/span>pfun_t<\/span>)<\/span>(<\/span>int<\/span>)<\/span>;<\/span><\/p>\n

                          \u65b0\u7684\u7c7b\u578b\u540d pfun_t \u5fc5\u987b\u5728 * \u7684\u53f3\u8fb9\u3002<\/p>\n

                          \n

                          \u4e94\u3001\u51fd\u6570\u6307\u9488\u6570\u7ec4<\/h3>\n

                          5.1 \u5b9a\u4e49\u51fd\u6570\u6307\u9488\u6570\u7ec4<\/h4>\n

                          \u51fd\u6570\u6307\u9488\u6570\u7ec4：\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f\u51fd\u6570\u6307\u9488\u3002<\/p>\n

                          int<\/span> (<\/span>*<\/span>parr[<\/span>3<\/span>]<\/span>)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span>;<\/span><\/p>\n

                          \u4ece\u5185\u5230\u5916：<\/p>\n

                            \n
                          • parr \u5148\u548c [] \u7ed3\u5408 \u2192 parr \u662f\u6570\u7ec4\u3002<\/li>\n
                          • \u6570\u7ec4\u6709 3 \u4e2a\u5143\u7d20\u3002<\/li>\n
                          • \u6bcf\u4e2a\u5143\u7d20\u7684\u7c7b\u578b\u662f int (*)(int, int)，\u5373\u51fd\u6570\u6307\u9488\u3002<\/li>\n<\/ul>\n

                            \u6240\u4ee5 parr \u662f\u4e00\u4e2a\u201c\u5b58\u653e\u51fd\u6570\u6307\u9488\u7684\u6570\u7ec4\u201d\u3002<\/p>\n

                            \u7c7b\u578b\u62c6\u89e3<\/h5>\n

                            int<\/span> (<\/span>*<\/span>parr[<\/span>3<\/span>]<\/span>)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span>;<\/span><\/p>\n\n\u90e8\u5206\u542b\u4e49<\/tr>\n\n\n\n\n\n\n
                            parr<\/td>\n\u53d8\u91cf\u540d<\/td>\n<\/tr>\n
                            parr[3]<\/td>\n\u6570\u7ec4，\u6709 3 \u4e2a\u5143\u7d20<\/td>\n<\/tr>\n
                            *parr[3]<\/td>\n\u6bcf\u4e2a\u5143\u7d20\u662f\u6307\u9488<\/td>\n<\/tr>\n
                            (*parr[3])(int, int)<\/td>\n\u6bcf\u4e2a\u6307\u9488\u6307\u5411\u53c2\u6570\u4e3a (int, int) \u7684\u51fd\u6570<\/td>\n<\/tr>\n
                            int (*parr[3])(int, int)<\/td>\n\u6bcf\u4e2a\u51fd\u6570\u8fd4\u56de int<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                            \u5e38\u89c1\u9519\u8bef\u5199\u6cd5<\/h5>\n

                            int<\/span> *<\/span>parr2[<\/span>3<\/span>]<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span>;<\/span> \/\/ \u9519\u8bef：parr2 \u662f\u6570\u7ec4，\u5143\u7d20\u662f\u8fd4\u56de int* \u7684\u51fd\u6570？<\/span>
                            \nint<\/span> (<\/span>*<\/span>parr3[<\/span>3<\/span>]<\/span>)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span>;<\/span> \/\/ \u6b63\u786e<\/span><\/p>\n

                            int *parr2[3](int, int); \u4f1a\u88ab\u89e3\u6790\u4e3a\u201c\u6570\u7ec4，\u6bcf\u4e2a\u5143\u7d20\u662f\u51fd\u6570\u58f0\u660e\u201d，\u8bed\u6cd5\u4e0d\u5408\u6cd5\u6216\u8bed\u4e49\u9519\u8bef\u3002 \u51fd\u6570\u6307\u9488\u6570\u7ec4\u5fc5\u987b\u628a * \u548c\u6570\u7ec4\u540d\u7528\u62ec\u53f7\u62ec\u8d77\u6765：(*parr[3])\u3002<\/p>\n

                            5.2 \u51fd\u6570\u6307\u9488\u6570\u7ec4\u793a\u4f8b<\/h4>\n

                            #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

                            int<\/span> Add<\/span>(<\/span>int<\/span> x,<\/span> int<\/span> y)<\/span>
                            \n{<\/span>
                            \n return<\/span> x +<\/span> y;<\/span>
                            \n}<\/span><\/p>\n

                            int<\/span> Sub<\/span>(<\/span>int<\/span> x,<\/span> int<\/span> y)<\/span>
                            \n{<\/span>
                            \n return<\/span> x –<\/span> y;<\/span>
                            \n}<\/span><\/p>\n

                            int<\/span> Mul<\/span>(<\/span>int<\/span> x,<\/span> int<\/span> y)<\/span>
                            \n{<\/span>
                            \n return<\/span> x *<\/span> y;<\/span>
                            \n}<\/span><\/p>\n

                            int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                            \n{<\/span>
                            \n int<\/span> (<\/span>*<\/span>ops[<\/span>3<\/span>]<\/span>)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span> =<\/span> {<\/span> Add,<\/span> Sub,<\/span> Mul }<\/span>;<\/span><\/p>\n

                            int<\/span> a =<\/span> 10<\/span>;<\/span>
                            \n int<\/span> b =<\/span> 5<\/span>;<\/span><\/p>\n

                            for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 3<\/span>;<\/span> ++<\/span>i)<\/span> {<\/span>
                            \n printf<\/span>(<\/span>"ops[%d](%d, %d) = %d\\\\n"<\/span>,<\/span> i,<\/span> a,<\/span> b,<\/span> ops[<\/span>i]<\/span>(<\/span>a,<\/span> b)<\/span>)<\/span>;<\/span>
                            \n }<\/span><\/p>\n

                            return<\/span> 0<\/span>;<\/span>
                            \n}<\/span><\/p>\n

                            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                            \u8f93\u51fa\u793a\u4f8b：<\/p>\n

                            ops[0](10, 5) = 15
                            \nops[1](10, 5) = 5
                            \nops[2](10, 5) = 50<\/p>\n

                            \n

                            \u516d\u3001\u8f6c\u79fb\u8868<\/h3>\n

                            6.1 \u4ec0\u4e48\u662f\u8f6c\u79fb\u8868？<\/h4>\n

                            \u8f6c\u79fb\u8868\u672c\u8d28\u5c31\u662f\u201c\u51fd\u6570\u6307\u9488\u6570\u7ec4\u201d\u3002 \u5b83\u53ef\u4ee5\u628a\u5197\u957f\u7684 switch-case \u6539\u6210\u6309\u7d22\u5f15\u8c03\u7528\u51fd\u6570\u3002<\/p>\n

                            \u4f8b\u5982\u8ba1\u7b97\u5668：<\/p>\n

                              \n
                            • 1：\u52a0\u6cd5<\/li>\n
                            • 2：\u51cf\u6cd5<\/li>\n
                            • 3：\u4e58\u6cd5<\/li>\n
                            • 4：\u9664\u6cd5<\/li>\n
                            • 0：\u9000\u51fa<\/li>\n<\/ul>\n

                              \u7528\u8f6c\u79fb\u8868\u5199：<\/p>\n

                              int<\/span> (<\/span>*<\/span>table[<\/span>5<\/span>]<\/span>)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span> =<\/span> {<\/span> NULL<\/span>,<\/span> Add,<\/span> Sub,<\/span> Mul,<\/span> Divide }<\/span>;<\/span><\/p>\n

                              \u8c03\u7528：<\/p>\n

                              table[<\/span>choice]<\/span>(<\/span>a,<\/span> b)<\/span>;<\/span><\/p>\n

                              6.1 \u4ec0\u4e48\u662f\u8f6c\u79fb\u8868？<\/h4>\n

                              \u8f6c\u79fb\u8868（jump table）\u672c\u8d28\u4e0a\u5c31\u662f\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4\u3002 \u5b83\u628a\u201c\u6839\u636e\u7f16\u53f7\u9009\u62e9\u51fd\u6570\u201d\u7684\u903b\u8f91，\u4ece\u5197\u957f\u7684 switch-case \u6539\u6210\u6309\u7d22\u5f15\u67e5\u8868\u8c03\u7528\u3002<\/p>\n

                              \u4f8b\u5982\u8ba1\u7b97\u5668：<\/p>\n\n\u9009\u62e9\u529f\u80fd<\/tr>\n\n\n\n\n\n\n
                              1<\/td>\n\u52a0\u6cd5<\/td>\n<\/tr>\n
                              2<\/td>\n\u51cf\u6cd5<\/td>\n<\/tr>\n
                              3<\/td>\n\u4e58\u6cd5<\/td>\n<\/tr>\n
                              4<\/td>\n\u9664\u6cd5<\/td>\n<\/tr>\n
                              0<\/td>\n\u9000\u51fa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                              \u7528\u8f6c\u79fb\u8868\u5199：<\/p>\n

                              int<\/span> (<\/span>*<\/span>table[<\/span>5<\/span>]<\/span>)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span> =<\/span> {<\/span> NULL<\/span>,<\/span> Add,<\/span> Sub,<\/span> Mul,<\/span> Divide }<\/span>;<\/span><\/p>\n

                              \u8c03\u7528：<\/p>\n

                              table[<\/span>choice]<\/span>(<\/span>a,<\/span> b)<\/span>;<\/span><\/p>\n

                              \u4e3a\u4ec0\u4e48\u53eb\u201c\u8f6c\u79fb\u8868\u201d？<\/h5>\n

                              \u7a0b\u5e8f\u539f\u672c\u8981\u7ecf\u8fc7\u4e00\u8fde\u4e32 if \u6216 switch \u5224\u65ad，\u624d\u80fd\u51b3\u5b9a\u8c03\u7528\u54ea\u4e2a\u51fd\u6570\u3002 \u4f7f\u7528\u8f6c\u79fb\u8868\u540e，\u76f4\u63a5\u7528\u4e0b\u6807\u4ece\u6570\u7ec4\u4e2d\u53d6\u51fa\u51fd\u6570\u5730\u5740\u5e76\u8c03\u7528，\u63a7\u5236\u6d41\u201c\u8f6c\u79fb\u201d\u5230\u76ee\u6807\u51fd\u6570，\u6240\u4ee5\u53eb\u8f6c\u79fb\u8868\u3002<\/p>\n

                              6.2 \u666e\u901a switch \u7248\u8ba1\u7b97\u5668<\/h4>\n

                              #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

                              int<\/span> Add<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span>
                              \n{<\/span>
                              \n return<\/span> a +<\/span> b;<\/span>
                              \n}<\/span><\/p>\n

                              int<\/span> Sub<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span>
                              \n{<\/span>
                              \n return<\/span> a –<\/span> b;<\/span>
                              \n}<\/span><\/p>\n

                              int<\/span> Mul<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span>
                              \n{<\/span>
                              \n return<\/span> a *<\/span> b;<\/span>
                              \n}<\/span><\/p>\n

                              int<\/span> Divide<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span>
                              \n{<\/span>
                              \n if<\/span> (<\/span>b ==<\/span> 0<\/span>)<\/span> {<\/span>
                              \n printf<\/span>(<\/span>"\u9664\u6570\u4e0d\u80fd\u4e3a 0\\\\n"<\/span>)<\/span>;<\/span>
                              \n return<\/span> 0<\/span>;<\/span>
                              \n }<\/span>
                              \n return<\/span> a \/<\/span> b;<\/span>
                              \n}<\/span><\/p>\n

                              int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                              \n{<\/span>
                              \n int<\/span> x,<\/span> y;<\/span>
                              \n int<\/span> input =<\/span> 1<\/span>;<\/span>
                              \n int<\/span> ret =<\/span> 0<\/span>;<\/span><\/p>\n

                              do<\/span> {<\/span>
                              \n printf<\/span>(<\/span>"************************\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>" 1:add 2:sub\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>" 3:mul 4:div\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>" 0:exit\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>"************************\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>"\u8bf7\u9009\u62e9："<\/span>)<\/span>;<\/span>
                              \n scanf<\/span>(<\/span>"%d"<\/span>,<\/span> &<\/span>input)<\/span>;<\/span><\/p>\n

                              switch<\/span> (<\/span>input)<\/span> {<\/span>
                              \n case<\/span> 1<\/span>:<\/span>
                              \n printf<\/span>(<\/span>"\u8f93\u5165\u64cd\u4f5c\u6570："<\/span>)<\/span>;<\/span>
                              \n scanf<\/span>(<\/span>"%d %d"<\/span>,<\/span> &<\/span>x,<\/span> &<\/span>y)<\/span>;<\/span>
                              \n ret =<\/span> Add<\/span>(<\/span>x,<\/span> y)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>"ret = %d\\\\n"<\/span>,<\/span> ret)<\/span>;<\/span>
                              \n break<\/span>;<\/span>
                              \n case<\/span> 2<\/span>:<\/span>
                              \n printf<\/span>(<\/span>"\u8f93\u5165\u64cd\u4f5c\u6570："<\/span>)<\/span>;<\/span>
                              \n scanf<\/span>(<\/span>"%d %d"<\/span>,<\/span> &<\/span>x,<\/span> &<\/span>y)<\/span>;<\/span>
                              \n ret =<\/span> Sub<\/span>(<\/span>x,<\/span> y)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>"ret = %d\\\\n"<\/span>,<\/span> ret)<\/span>;<\/span>
                              \n break<\/span>;<\/span>
                              \n case<\/span> 3<\/span>:<\/span>
                              \n printf<\/span>(<\/span>"\u8f93\u5165\u64cd\u4f5c\u6570："<\/span>)<\/span>;<\/span>
                              \n scanf<\/span>(<\/span>"%d %d"<\/span>,<\/span> &<\/span>x,<\/span> &<\/span>y)<\/span>;<\/span>
                              \n ret =<\/span> Mul<\/span>(<\/span>x,<\/span> y)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>"ret = %d\\\\n"<\/span>,<\/span> ret)<\/span>;<\/span>
                              \n break<\/span>;<\/span>
                              \n case<\/span> 4<\/span>:<\/span>
                              \n printf<\/span>(<\/span>"\u8f93\u5165\u64cd\u4f5c\u6570："<\/span>)<\/span>;<\/span>
                              \n scanf<\/span>(<\/span>"%d %d"<\/span>,<\/span> &<\/span>x,<\/span> &<\/span>y)<\/span>;<\/span>
                              \n ret =<\/span> Divide<\/span>(<\/span>x,<\/span> y)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>"ret = %d\\\\n"<\/span>,<\/span> ret)<\/span>;<\/span>
                              \n break<\/span>;<\/span>
                              \n case<\/span> 0<\/span>:<\/span>
                              \n printf<\/span>(<\/span>"\u9000\u51fa\u7a0b\u5e8f\\\\n"<\/span>)<\/span>;<\/span>
                              \n break<\/span>;<\/span>
                              \n default<\/span>:<\/span>
                              \n printf<\/span>(<\/span>"\u9009\u62e9\u9519\u8bef\\\\n"<\/span>)<\/span>;<\/span>
                              \n break<\/span>;<\/span>
                              \n }<\/span>
                              \n }<\/span> while<\/span> (<\/span>input)<\/span>;<\/span><\/p>\n

                              return<\/span> 0<\/span>;<\/span>
                              \n}<\/span><\/p>\n

                              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                              6.3 \u8f6c\u79fb\u8868\u7248\u8ba1\u7b97\u5668<\/h4>\n

                              #<\/span>include<\/span> <stdio.h><\/span><\/span>
                              \n#<\/span>include<\/span> <stddef.h><\/span><\/span><\/p>\n

                              int<\/span> Add<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span>
                              \n{<\/span>
                              \n return<\/span> a +<\/span> b;<\/span>
                              \n}<\/span><\/p>\n

                              int<\/span> Sub<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span>
                              \n{<\/span>
                              \n return<\/span> a –<\/span> b;<\/span>
                              \n}<\/span><\/p>\n

                              int<\/span> Mul<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span>
                              \n{<\/span>
                              \n return<\/span> a *<\/span> b;<\/span>
                              \n}<\/span><\/p>\n

                              int<\/span> Divide<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span>
                              \n{<\/span>
                              \n if<\/span> (<\/span>b ==<\/span> 0<\/span>)<\/span> {<\/span>
                              \n printf<\/span>(<\/span>"\u9664\u6570\u4e0d\u80fd\u4e3a 0\\\\n"<\/span>)<\/span>;<\/span>
                              \n return<\/span> 0<\/span>;<\/span>
                              \n }<\/span>
                              \n return<\/span> a \/<\/span> b;<\/span>
                              \n}<\/span><\/p>\n

                              int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                              \n{<\/span>
                              \n int<\/span> x,<\/span> y;<\/span>
                              \n int<\/span> input =<\/span> 1<\/span>;<\/span>
                              \n int<\/span> ret =<\/span> 0<\/span>;<\/span><\/p>\n

                              int<\/span> (<\/span>*<\/span>table[<\/span>5<\/span>]<\/span>)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span> =<\/span> {<\/span> NULL<\/span>,<\/span> Add,<\/span> Sub,<\/span> Mul,<\/span> Divide }<\/span>;<\/span><\/p>\n

                              do<\/span> {<\/span>
                              \n printf<\/span>(<\/span>"************************\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>" 1:add 2:sub\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>" 3:mul 4:div\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>" 0:exit\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>"************************\\\\n"<\/span>)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>"\u8bf7\u9009\u62e9："<\/span>)<\/span>;<\/span>
                              \n scanf<\/span>(<\/span>"%d"<\/span>,<\/span> &<\/span>input)<\/span>;<\/span><\/p>\n

                              if<\/span> (<\/span>input >=<\/span> 1<\/span> &&<\/span> input <=<\/span> 4<\/span>)<\/span> {<\/span>
                              \n printf<\/span>(<\/span>"\u8f93\u5165\u64cd\u4f5c\u6570："<\/span>)<\/span>;<\/span>
                              \n scanf<\/span>(<\/span>"%d %d"<\/span>,<\/span> &<\/span>x,<\/span> &<\/span>y)<\/span>;<\/span>
                              \n ret =<\/span> table[<\/span>input]<\/span>(<\/span>x,<\/span> y)<\/span>;<\/span>
                              \n printf<\/span>(<\/span>"ret = %d\\\\n"<\/span>,<\/span> ret)<\/span>;<\/span>
                              \n }<\/span> else<\/span> if<\/span> (<\/span>input ==<\/span> 0<\/span>)<\/span> {<\/span>
                              \n printf<\/span>(<\/span>"\u9000\u51fa\u8ba1\u7b97\u5668\\\\n"<\/span>)<\/span>;<\/span>
                              \n }<\/span> else<\/span> {<\/span>
                              \n printf<\/span>(<\/span>"\u8f93\u5165\u6709\u8bef\\\\n"<\/span>)<\/span>;<\/span>
                              \n }<\/span>
                              \n }<\/span> while<\/span> (<\/span>input)<\/span>;<\/span><\/p>\n

                              return<\/span> 0<\/span>;<\/span>
                              \n}<\/span><\/p>\n

                              \u4f18\u70b9：<\/p>\n

                                \n
                              • \u4ee3\u7801\u66f4\u7b80\u6d01\u3002<\/li>\n
                              • \u6269\u5c55\u529f\u80fd\u65f6\u53ea\u9700\u589e\u52a0\u51fd\u6570\u548c\u8868\u9879\u3002<\/li>\n
                              • \u5f88\u9002\u5408\u83dc\u5355\u3001\u547d\u4ee4\u5206\u53d1\u3001\u72b6\u6001\u673a\u7b49\u573a\u666f\u3002<\/li>\n<\/ul>\n

                                \u6ce8\u610f：<\/p>\n

                                  \n
                                • \u4f7f\u7528\u8f6c\u79fb\u8868\u524d\u5fc5\u987b\u68c0\u67e5\u7d22\u5f15\u8303\u56f4，\u9632\u6b62\u8d8a\u754c\u3002<\/li>\n
                                • \u51fd\u6570\u6307\u9488\u6570\u7ec4\u4e2d\u7684\u51fd\u6570\u7b7e\u540d\u5fc5\u987b\u5b8c\u5168\u4e00\u81f4\u3002<\/li>\n
                                • \u8868\u4e2d\u7b2c 0 \u9879\u53ef\u4ee5\u653e NULL，\u56e0\u4e3a 0 \u8868\u793a\u9000\u51fa，\u4e0d\u4f1a\u8c03\u7528\u3002<\/li>\n<\/ul>\n
                                  \n
                                  \u4e0e switch-case \u5bf9\u6bd4<\/h5>\n\n\u5bf9\u6bd4\u9879switch-case\u8f6c\u79fb\u8868<\/tr>\n\n\n\n\n\n\n\n
                                  \u4ee3\u7801\u957f\u5ea6<\/td>\n\u5206\u652f\u591a\u65f6\u4ee3\u7801\u5197\u957f<\/td>\n\u7b80\u6d01，\u4e00\u4e2a\u6570\u7ec4\u641e\u5b9a<\/td>\n<\/tr>\n
                                  \u6269\u5c55\u6027<\/td>\n\u589e\u52a0\u5206\u652f\u8981\u6539\u591a\u5904<\/td>\n\u589e\u52a0\u51fd\u6570\u548c\u8868\u9879\u5373\u53ef<\/td>\n<\/tr>\n
                                  \u53ef\u8bfb\u6027<\/td>\n\u5206\u652f\u903b\u8f91\u76f4\u89c2<\/td>\n\u9700\u8981\u7406\u89e3\u51fd\u6570\u6307\u9488\u6570\u7ec4<\/td>\n<\/tr>\n
                                  \u8fd0\u884c\u65b9\u5f0f<\/td>\n\u9010\u4e2a\u6bd4\u8f83\u6216\u8df3\u8f6c<\/td>\n\u76f4\u63a5\u6309\u7d22\u5f15\u53d6\u51fd\u6570\u5730\u5740<\/td>\n<\/tr>\n
                                  \u9002\u7528\u573a\u666f<\/td>\n\u5206\u652f\u5c11\u3001\u903b\u8f91\u5dee\u5f02\u5927<\/td>\n\u5206\u652f\u96c6\u4e2d\u3001\u7b7e\u540d\u4e00\u81f4\u3001\u7d22\u5f15\u8fde\u7eed<\/td>\n<\/tr>\n
                                  \u7d22\u5f15\u68c0\u67e5<\/td>\ndefault \u515c\u5e95<\/td>\n\u5fc5\u987b\u624b\u52a8\u68c0\u67e5\u8303\u56f4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                  \u4e03\u3001\u5e38\u89c1\u9677\u9631\u4e0e\u8c03\u8bd5\u5efa\u8bae<\/h3>\n

                                  7.1 \u6613\u9519\u70b9<\/h4>\n
                                • \u5b57\u7b26\u6307\u9488\u6307\u5411\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u540e\u4fee\u6539\u5185\u5bb9<\/li>\n

                                  char<\/span> *<\/span>s =<\/span> "hello"<\/span>;<\/span>
                                  \n\/\/ s[0] = 'H'; \/\/ \u672a\u5b9a\u4e49\u884c\u4e3a<\/span><\/p>\n

                                  \u5e94\u5199\u6210：<\/p>\n

                                  char<\/span> s[<\/span>]<\/span> =<\/span> "hello"<\/span>;<\/span>
                                  \ns[<\/span>0<\/span>]<\/span> =<\/span> 'H'<\/span>;<\/span><\/p>\n

                                • \u6570\u7ec4\u6307\u9488\u548c\u6307\u9488\u6570\u7ec4\u6df7\u6dc6<\/li>\n

                                  int<\/span> *<\/span>p1[<\/span>5<\/span>]<\/span>;<\/span> \/\/ \u6307\u9488\u6570\u7ec4<\/span>
                                  \nint<\/span> (<\/span>*<\/span>p2)<\/span>[<\/span>5<\/span>]<\/span>;<\/span> \/\/ \u6570\u7ec4\u6307\u9488<\/span><\/p>\n

                                • \u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u5199\u6210 int **<\/li>\n

                                  \u771f\u6b63\u4e8c\u7ef4\u6570\u7ec4：<\/p>\n

                                  void<\/span> f<\/span>(<\/span>int<\/span> (<\/span>*<\/span>p)<\/span>[<\/span>5<\/span>]<\/span>,<\/span> int<\/span> rows)<\/span>;<\/span><\/p>\n

                                  \u52a8\u6001\u6307\u9488\u6570\u7ec4：<\/p>\n

                                  void<\/span> f<\/span>(<\/span>int<\/span> *<\/span>*<\/span>p,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>;<\/span><\/p>\n

                                  \u4e24\u8005\u4e0d\u662f\u4e00\u56de\u4e8b\u3002<\/p>\n

                                • \u51fd\u6570\u6307\u9488\u6570\u7ec4\u5b9a\u4e49\u5199\u9519<\/li>\n

                                  int<\/span> (<\/span>*<\/span>ops[<\/span>3<\/span>]<\/span>)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span>;<\/span> \/\/ \u6b63\u786e<\/span>
                                  \n\/\/ int *ops[3](int, int); \/\/ \u9519\u8bef<\/span><\/p>\n

                                • \u8f6c\u79fb\u8868\u8d8a\u754c<\/li>\n

                                  ret =<\/span> table[<\/span>input]<\/span>(<\/span>x,<\/span> y)<\/span>;<\/span> \/\/ input \u5fc5\u987b\u5728\u5408\u6cd5\u8303\u56f4\u5185<\/span><\/p>\n

                                  7.2 \u8c03\u8bd5\u5efa\u8bae<\/h4>\n

                                  7.2.1 \u7528\u8c03\u8bd5\u5b8f\u6253\u5370\u5730\u5740\u3001\u7c7b\u578b\u5927\u5c0f\u548c\u6b65\u957f<\/h5>\n

                                  #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

                                  #<\/span>define<\/span> PRINT_PTR<\/span>(<\/span>p)<\/span> printf<\/span>(<\/span>#p <\/span>" = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>(<\/span>p)<\/span>)<\/span><\/span><\/span>
                                  \n#<\/span>define<\/span> PRINT_SIZE<\/span>(<\/span>x)<\/span> printf<\/span>(<\/span><\/span>"sizeof("<\/span> #<\/span>x<\/span> <\/span><\/span>") = %zu\\\\n"<\/span>,<\/span> sizeof<\/span>(<\/span>x)<\/span>)<\/span><\/span><\/span>
                                  \n#<\/span>define<\/span> ARRAY_SIZE<\/span>(<\/span>a)<\/span> (<\/span>sizeof<\/span>(<\/span>a)<\/span> \/<\/span> sizeof<\/span>(<\/span>(<\/span>a)<\/span>[<\/span>0<\/span>]<\/span>)<\/span>)<\/span><\/span><\/span><\/p>\n

                                  int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                                  \n{<\/span>
                                  \n int<\/span> arr[<\/span>5<\/span>]<\/span> =<\/span> {<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>}<\/span>;<\/span>
                                  \n int<\/span> (<\/span>*<\/span>p)<\/span>[<\/span>5<\/span>]<\/span> =<\/span> &<\/span>arr;<\/span><\/p>\n

                                  PRINT_PTR<\/span>(<\/span>arr)<\/span>;<\/span>
                                  \n PRINT_PTR<\/span>(<\/span>&<\/span>arr)<\/span>;<\/span>
                                  \n PRINT_PTR<\/span>(<\/span>p)<\/span>;<\/span>
                                  \n PRINT_PTR<\/span>(<\/span>p +<\/span> 1<\/span>)<\/span>;<\/span><\/p>\n

                                  PRINT_SIZE<\/span>(<\/span>arr)<\/span>;<\/span>
                                  \n PRINT_SIZE<\/span>(<\/span>p)<\/span>;<\/span>
                                  \n PRINT_SIZE<\/span>(<\/span>*<\/span>p)<\/span>;<\/span><\/p>\n

                                  printf<\/span>(<\/span>"ARRAY_SIZE(arr) = %zu\\\\n"<\/span>,<\/span> ARRAY_SIZE<\/span>(<\/span>arr)<\/span>)<\/span>;<\/span><\/p>\n

                                  return<\/span> 0<\/span>;<\/span>
                                  \n}<\/span><\/p>\n

                                  \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                  \u8981\u70b9：<\/p>\n

                                    \n
                                  • \u6253\u5370\u6307\u9488\u4e00\u5b9a\u8981\u8f6c (void *)\u3002<\/li>\n
                                  • p + 1 \u8df3\u8fc7\u6574\u4e2a\u6570\u7ec4，\u6240\u4ee5\u5730\u5740\u5dee\u662f sizeof(int[5])\u3002<\/li>\n
                                  • ARRAY_SIZE \u53ea\u5bf9\u771f\u6b63\u7684\u6570\u7ec4\u540d\u6709\u6548\u3002<\/li>\n<\/ul>\n
                                    7.2.2 \u7528 assert \u7ed9\u51fd\u6570\u52a0\u201c\u5408\u540c\u201d<\/h5>\n

                                    #<\/span>include<\/span> <stdio.h><\/span><\/span>
                                    \n#<\/span>include<\/span> <assert.h><\/span><\/span><\/p>\n

                                    static<\/span> void<\/span> print_array<\/span>(<\/span>const<\/span> int<\/span> *<\/span>arr,<\/span> int<\/span> n)<\/span>
                                    \n{<\/span>
                                    \n assert<\/span>(<\/span>arr !=<\/span> NULL<\/span>)<\/span>;<\/span>
                                    \n assert<\/span>(<\/span>n ><\/span> 0<\/span>)<\/span>;<\/span><\/p>\n

                                    for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> n;<\/span> ++<\/span>i)<\/span> {<\/span>
                                    \n printf<\/span>(<\/span>"%d "<\/span>,<\/span> arr[<\/span>i]<\/span>)<\/span>;<\/span>
                                    \n }<\/span>
                                    \n printf<\/span>(<\/span>"\\\\n"<\/span>)<\/span>;<\/span>
                                    \n}<\/span><\/p>\n

                                    static<\/span> int<\/span> calc<\/span>(<\/span>int<\/span> (<\/span>*<\/span>op)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span>,<\/span> int<\/span> x,<\/span> int<\/span> y)<\/span>
                                    \n{<\/span>
                                    \n assert<\/span>(<\/span>op !=<\/span> NULL<\/span>)<\/span>;<\/span>
                                    \n return<\/span> op<\/span>(<\/span>x,<\/span> y)<\/span>;<\/span>
                                    \n}<\/span><\/p>\n

                                    static<\/span> int<\/span> add<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span> {<\/span> return<\/span> a +<\/span> b;<\/span> }<\/span>
                                    \nstatic<\/span> int<\/span> sub<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span> {<\/span> return<\/span> a –<\/span> b;<\/span> }<\/span><\/p>\n

                                    int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                                    \n{<\/span>
                                    \n int<\/span> arr[<\/span>]<\/span> =<\/span> {<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>}<\/span>;<\/span>
                                    \n int<\/span> n =<\/span> (<\/span>int<\/span>)<\/span>(<\/span>sizeof<\/span>(<\/span>arr)<\/span> \/<\/span> sizeof<\/span>(<\/span>arr[<\/span>0<\/span>]<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

                                    print_array<\/span>(<\/span>arr,<\/span> n)<\/span>;<\/span>
                                    \n printf<\/span>(<\/span>"calc(add, 10, 3) = %d\\\\n"<\/span>,<\/span> calc<\/span>(<\/span>add,<\/span> 10<\/span>,<\/span> 3<\/span>)<\/span>)<\/span>;<\/span>
                                    \n printf<\/span>(<\/span>"calc(sub, 10, 3) = %d\\\\n"<\/span>,<\/span> calc<\/span>(<\/span>sub,<\/span> 10<\/span>,<\/span> 3<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

                                    return<\/span> 0<\/span>;<\/span>
                                    \n}<\/span><\/p>\n

                                    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                    \u8981\u70b9：<\/p>\n

                                      \n
                                    • assert \u7528\u4e8e\u68c0\u67e5\u201c\u8fd9\u91cc\u5fc5\u987b\u6210\u7acb\u201d\u3002<\/li>\n
                                    • \u51fd\u6570\u6307\u9488\u8c03\u7528\u524d\u5148\u65ad\u8a00\u975e\u7a7a\u3002<\/li>\n
                                    • \u53d1\u5e03\u7248\u53ef\u7528 #define NDEBUG \u5173\u95ed\u65ad\u8a00\u3002<\/li>\n<\/ul>\n
                                      7.2.3 \u6570\u7ec4\u9000\u5316\u4e0e\u957f\u5ea6\u4f20\u9012\u8c03\u8bd5<\/h5>\n

                                      #<\/span>include<\/span> <stdio.h><\/span><\/span>
                                      \n#<\/span>include<\/span> <assert.h><\/span><\/span><\/p>\n

                                      #<\/span>define<\/span> ARRAY_SIZE<\/span>(<\/span>a)<\/span> (<\/span>sizeof<\/span>(<\/span>a)<\/span> \/<\/span> sizeof<\/span>(<\/span>(<\/span>a)<\/span>[<\/span>0<\/span>]<\/span>)<\/span>)<\/span><\/span><\/span><\/p>\n

                                      static<\/span> void<\/span> print_array<\/span>(<\/span>const<\/span> int<\/span> *<\/span>arr,<\/span> int<\/span> n)<\/span>
                                      \n{<\/span>
                                      \n assert<\/span>(<\/span>arr !=<\/span> NULL<\/span>)<\/span>;<\/span>
                                      \n assert<\/span>(<\/span>n ><\/span> 0<\/span>)<\/span>;<\/span><\/p>\n

                                      for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> n;<\/span> ++<\/span>i)<\/span> {<\/span>
                                      \n printf<\/span>(<\/span>"%d "<\/span>,<\/span> arr[<\/span>i]<\/span>)<\/span>;<\/span>
                                      \n }<\/span>
                                      \n printf<\/span>(<\/span>"\\\\n"<\/span>)<\/span>;<\/span>
                                      \n}<\/span><\/p>\n

                                      int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                                      \n{<\/span>
                                      \n int<\/span> arr[<\/span>]<\/span> =<\/span> {<\/span>10<\/span>,<\/span> 20<\/span>,<\/span> 30<\/span>,<\/span> 40<\/span>,<\/span> 50<\/span>}<\/span>;<\/span>
                                      \n int<\/span> n =<\/span> (<\/span>int<\/span>)<\/span>ARRAY_SIZE<\/span>(<\/span>arr)<\/span>;<\/span><\/p>\n

                                      printf<\/span>(<\/span>"main: sizeof(arr) = %zu, n = %d\\\\n"<\/span>,<\/span> sizeof<\/span>(<\/span>arr)<\/span>,<\/span> n)<\/span>;<\/span>
                                      \n print_array<\/span>(<\/span>arr,<\/span> n)<\/span>;<\/span><\/p>\n

                                      return<\/span> 0<\/span>;<\/span>
                                      \n}<\/span><\/p>\n

                                      \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                      \u8981\u70b9：<\/p>\n

                                        \n
                                      • \u51fd\u6570\u5185 sizeof(arr) \u5f97\u5230\u7684\u662f\u6307\u9488\u5927\u5c0f，\u4e0d\u662f\u6570\u7ec4\u5927\u5c0f\u3002<\/li>\n
                                      • \u6b63\u786e\u505a\u6cd5\u662f\u201c\u6307\u9488 + \u957f\u5ea6\u201d\u4e00\u8d77\u4f20\u3002<\/li>\n
                                      • \u8c03\u8bd5\u65f6\u6253\u5370 sizeof(arr) \u548c n，\u7acb\u523b\u80fd\u770b\u51fa\u662f\u5426\u9000\u5316\u3002<\/li>\n<\/ul>\n
                                        7.2.4 \u51fd\u6570\u6307\u9488\u4e0e\u8f6c\u79fb\u8868\u8c03\u8bd5<\/h5>\n

                                        #<\/span>include<\/span> <stdio.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <assert.h><\/span><\/span><\/p>\n

                                        typedef<\/span> int<\/span> (<\/span>*<\/span>op_t<\/span>)<\/span>(<\/span>int<\/span>,<\/span> int<\/span>)<\/span>;<\/span><\/p>\n

                                        static<\/span> int<\/span> add<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span> {<\/span> return<\/span> a +<\/span> b;<\/span> }<\/span>
                                        \nstatic<\/span> int<\/span> sub<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span> {<\/span> return<\/span> a –<\/span> b;<\/span> }<\/span>
                                        \nstatic<\/span> int<\/span> mul<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span> {<\/span> return<\/span> a *<\/span> b;<\/span> }<\/span>
                                        \nstatic<\/span> int<\/span> divide<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span>
                                        \n{<\/span>
                                        \n if<\/span> (<\/span>b ==<\/span> 0<\/span>)<\/span> {<\/span>
                                        \n printf<\/span>(<\/span>"\u9664\u6570\u4e0d\u80fd\u4e3a 0\\\\n"<\/span>)<\/span>;<\/span>
                                        \n return<\/span> 0<\/span>;<\/span>
                                        \n }<\/span>
                                        \n return<\/span> a \/<\/span> b;<\/span>
                                        \n}<\/span><\/p>\n

                                        int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                                        \n{<\/span>
                                        \n op_t<\/span> table[<\/span>5<\/span>]<\/span> =<\/span> {<\/span> NULL<\/span>,<\/span> add,<\/span> sub,<\/span> mul,<\/span> divide }<\/span>;<\/span><\/p>\n

                                        printf<\/span>(<\/span>"add = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>add)<\/span>;<\/span>
                                        \n printf<\/span>(<\/span>"table[1] = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>table[<\/span>1<\/span>]<\/span>)<\/span>;<\/span>
                                        \n printf<\/span>(<\/span>"table[2] = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>table[<\/span>2<\/span>]<\/span>)<\/span>;<\/span>
                                        \n printf<\/span>(<\/span>"table[3] = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>table[<\/span>3<\/span>]<\/span>)<\/span>;<\/span>
                                        \n printf<\/span>(<\/span>"table[4] = %p\\\\n"<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>table[<\/span>4<\/span>]<\/span>)<\/span>;<\/span><\/p>\n

                                        int<\/span> choice =<\/span> 1<\/span>;<\/span>
                                        \n int<\/span> x =<\/span> 10<\/span>;<\/span>
                                        \n int<\/span> y =<\/span> 5<\/span>;<\/span><\/p>\n

                                        assert<\/span>(<\/span>choice >=<\/span> 1<\/span> &&<\/span> choice <=<\/span> 4<\/span>)<\/span>;<\/span>
                                        \n assert<\/span>(<\/span>table[<\/span>choice]<\/span> !=<\/span> NULL<\/span>)<\/span>;<\/span><\/p>\n

                                        int<\/span> result =<\/span> table[<\/span>choice]<\/span>(<\/span>x,<\/span> y)<\/span>;<\/span>
                                        \n printf<\/span>(<\/span>"result = %d\\\\n"<\/span>,<\/span> result)<\/span>;<\/span><\/p>\n

                                        return<\/span> 0<\/span>;<\/span>
                                        \n}<\/span><\/p>\n

                                        \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                        \u8981\u70b9：<\/p>\n

                                          \n
                                        • \u7528 typedef \u7b80\u5316\u51fd\u6570\u6307\u9488\u7c7b\u578b\u3002<\/li>\n
                                        • \u6253\u5370\u6bcf\u4e2a\u8868\u9879\u5730\u5740，\u786e\u8ba4\u521d\u59cb\u5316\u987a\u5e8f\u6b63\u786e\u3002<\/li>\n
                                        • \u4f7f\u7528\u524d\u68c0\u67e5\u7d22\u5f15\u8303\u56f4\u548c\u8868\u9879\u975e\u7a7a\u3002<\/li>\n<\/ul>\n
                                          7.2.5 \u5b57\u7b26\u6307\u9488\u4e0e\u5b57\u7b26\u4e32\u8c03\u8bd5<\/h5>\n

                                          #<\/span>include<\/span> <stdio.h><\/span><\/span>
                                          \n#<\/span>include<\/span> <string.h><\/span><\/span><\/p>\n

                                          int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                                          \n{<\/span>
                                          \n char<\/span> arr[<\/span>]<\/span> =<\/span> "hello"<\/span>;<\/span>
                                          \n const<\/span> char<\/span> *<\/span>p =<\/span> "hello"<\/span>;<\/span><\/p>\n

                                          printf<\/span>(<\/span>"arr = %s\\\\n"<\/span>,<\/span> arr)<\/span>;<\/span>
                                          \n printf<\/span>(<\/span>"p = %s\\\\n"<\/span>,<\/span> p)<\/span>;<\/span><\/p>\n

                                          printf<\/span>(<\/span>"sizeof(arr) = %zu, strlen(arr) = %zu\\\\n"<\/span>,<\/span>
                                          \n sizeof<\/span>(<\/span>arr)<\/span>,<\/span> strlen<\/span>(<\/span>arr)<\/span>)<\/span>;<\/span>
                                          \n printf<\/span>(<\/span>"sizeof(p) = %zu, strlen(p) = %zu\\\\n"<\/span>,<\/span>
                                          \n sizeof<\/span>(<\/span>p)<\/span>,<\/span> strlen<\/span>(<\/span>p)<\/span>)<\/span>;<\/span><\/p>\n

                                          printf<\/span>(<\/span>"arr[0] = %c, p[0] = %c\\\\n"<\/span>,<\/span> arr[<\/span>0<\/span>]<\/span>,<\/span> p[<\/span>0<\/span>]<\/span>)<\/span>;<\/span><\/p>\n

                                          arr[<\/span>0<\/span>]<\/span> =<\/span> 'H'<\/span>;<\/span>
                                          \n printf<\/span>(<\/span>"\u4fee\u6539\u540e arr = %s\\\\n"<\/span>,<\/span> arr)<\/span>;<\/span><\/p>\n

                                          \/* p[0] = 'H'; \/\/ \u9519\u8bef：\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u4e0d\u53ef\u4fee\u6539 *\/<\/span><\/p>\n

                                          return<\/span> 0<\/span>;<\/span>
                                          \n}<\/span><\/p>\n

                                          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                          \u8981\u70b9：<\/p>\n

                                            \n
                                          • \u53ea\u8bfb\u5b57\u7b26\u4e32\u7528 const char *\u3002<\/li>\n
                                          • \u9700\u8981\u4fee\u6539\u5c31\u7528 char arr[]\u3002<\/li>\n
                                          • \u6253\u5370 sizeof \u548c strlen，\u7acb\u523b\u770b\u6e05\u533a\u522b\u3002<\/li>\n<\/ul>\n
                                            7.2.6 \u4e8c\u7ef4\u6570\u7ec4\u4e0e\u6570\u7ec4\u6307\u9488\u8c03\u8bd5<\/h5>\n

                                            #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

                                            static<\/span> void<\/span> print_matrix<\/span>(<\/span>int<\/span> (<\/span>*<\/span>p)<\/span>[<\/span>5<\/span>]<\/span>,<\/span> int<\/span> rows,<\/span> int<\/span> cols)<\/span>
                                            \n{<\/span>
                                            \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> rows;<\/span> ++<\/span>i)<\/span> {<\/span>
                                            \n for<\/span> (<\/span>int<\/span> j =<\/span> 0<\/span>;<\/span> j <<\/span> cols;<\/span> ++<\/span>j)<\/span> {<\/span>
                                            \n printf<\/span>(<\/span>"%d "<\/span>,<\/span> p[<\/span>i]<\/span>[<\/span>j]<\/span>)<\/span>;<\/span>
                                            \n }<\/span>
                                            \n printf<\/span>(<\/span>"\\\\n"<\/span>)<\/span>;<\/span>
                                            \n }<\/span>
                                            \n}<\/span><\/p>\n

                                            int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                                            \n{<\/span>
                                            \n int<\/span> arr[<\/span>3<\/span>]<\/span>[<\/span>5<\/span>]<\/span> =<\/span> {<\/span>
                                            \n {<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>}<\/span>,<\/span>
                                            \n {<\/span>2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>,<\/span> 6<\/span>}<\/span>,<\/span>
                                            \n {<\/span>3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>,<\/span> 6<\/span>,<\/span> 7<\/span>}<\/span>
                                            \n }<\/span>;<\/span><\/p>\n

                                            int<\/span> (<\/span>*<\/span>p)<\/span>[<\/span>5<\/span>]<\/span> =<\/span> arr;<\/span><\/p>\n

                                            for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 3<\/span>;<\/span> ++<\/span>i)<\/span> {<\/span>
                                            \n printf<\/span>(<\/span>"p + %d = %p\\\\n"<\/span>,<\/span> i,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>(<\/span>p +<\/span> i)<\/span>)<\/span>;<\/span>
                                            \n }<\/span><\/p>\n

                                            printf<\/span>(<\/span>"p[1][2] = %d\\\\n"<\/span>,<\/span> p[<\/span>1<\/span>]<\/span>[<\/span>2<\/span>]<\/span>)<\/span>;<\/span>
                                            \n printf<\/span>(<\/span>"*(*(p + 1) + 2) = %d\\\\n"<\/span>,<\/span> *<\/span>(<\/span>*<\/span>(<\/span>p +<\/span> 1<\/span>)<\/span> +<\/span> 2<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

                                            print_matrix<\/span>(<\/span>arr,<\/span> 3<\/span>,<\/span> 5<\/span>)<\/span>;<\/span><\/p>\n

                                            return<\/span> 0<\/span>;<\/span>
                                            \n}<\/span><\/p>\n

                                            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                            \u8981\u70b9：<\/p>\n

                                              \n
                                            • \u771f\u6b63\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2，\u5f62\u53c2\u5199 int (*p)[N]\u3002<\/li>\n
                                            • p + 1 \u8df3\u8fc7\u4e00\u6574\u884c\u3002<\/li>\n
                                            • \u4e0d\u8981\u5199\u6210 int **，\u4e24\u8005\u5185\u5b58\u5e03\u5c40\u4e0d\u540c\u3002<\/li>\n<\/ul>\n
                                              7.2.7 \u6700\u5c0f\u590d\u73b0\u4e0e\u5355\u5143\u6d4b\u8bd5<\/h5>\n

                                              #<\/span>include<\/span> <stdio.h><\/span><\/span>
                                              \n#<\/span>include<\/span> <assert.h><\/span><\/span><\/p>\n

                                              static<\/span> int<\/span> add<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span> {<\/span> return<\/span> a +<\/span> b;<\/span> }<\/span>
                                              \nstatic<\/span> int<\/span> sub<\/span>(<\/span>int<\/span> a,<\/span> int<\/span> b)<\/span> {<\/span> return<\/span> a –<\/span> b;<\/span> }<\/span><\/p>\n

                                              static<\/span> void<\/span> test_add<\/span>(<\/span>void<\/span>)<\/span>
                                              \n{<\/span>
                                              \n assert<\/span>(<\/span>add<\/span>(<\/span>2<\/span>,<\/span> 3<\/span>)<\/span> ==<\/span> 5<\/span>)<\/span>;<\/span>
                                              \n assert<\/span>(<\/span>add<\/span>(<\/span>–<\/span>1<\/span>,<\/span> 1<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>;<\/span>
                                              \n}<\/span><\/p>\n

                                              static<\/span> void<\/span> test_sub<\/span>(<\/span>void<\/span>)<\/span>
                                              \n{<\/span>
                                              \n assert<\/span>(<\/span>sub<\/span>(<\/span>5<\/span>,<\/span> 3<\/span>)<\/span> ==<\/span> 2<\/span>)<\/span>;<\/span>
                                              \n assert<\/span>(<\/span>sub<\/span>(<\/span>3<\/span>,<\/span> 5<\/span>)<\/span> ==<\/span> –<\/span>2<\/span>)<\/span>;<\/span>
                                              \n}<\/span><\/p>\n

                                              int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
                                              \n{<\/span>
                                              \n test_add<\/span>(<\/span>)<\/span>;<\/span>
                                              \n test_sub<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                                              printf<\/span>(<\/span>"all tests passed\\\\n"<\/span>)<\/span>;<\/span>
                                              \n return<\/span> 0<\/span>;<\/span>
                                              \n}<\/span><\/p>\n

                                              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                              \u8981\u70b9：<\/p>\n

                                                \n
                                              • \u6000\u7591\u6307\u9488\u95ee\u9898\u65f6，\u5148\u5199\u6700\u5c0f\u590d\u73b0\u7a0b\u5e8f\u3002<\/li>\n
                                              • \u7ed9\u5173\u952e\u51fd\u6570\u5199\u7b80\u5355\u65ad\u8a00\u6d4b\u8bd5\u3002<\/li>\n
                                              • \u6d4b\u8bd5\u901a\u8fc7\u540e\u518d\u96c6\u6210\u5230\u5b8c\u6574\u4ee3\u7801\u4e2d\u3002<\/li>\n<\/ul>\n
                                                7.2.8 \u8c03\u8bd5\u6e05\u5355<\/h5>\n\n\u68c0\u67e5\u9879C\u8bed\u8a00\u505a\u6cd5<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n
                                                \u6253\u5370\u5730\u5740<\/td>\nprintf("%p", (void *)p);<\/td>\n<\/tr>\n
                                                \u67e5\u770b\u7c7b\u578b\u5927\u5c0f<\/td>\nprintf("%zu", sizeof(x));<\/td>\n<\/tr>\n
                                                \u6570\u7ec4\u957f\u5ea6<\/td>\n#define ARRAY_SIZE(a) (sizeof(a)\/sizeof((a)[0]))<\/td>\n<\/tr>\n
                                                \u65ad\u8a00\u975e\u7a7a<\/td>\nassert(p != NULL);<\/td>\n<\/tr>\n
                                                \u65ad\u8a00\u7d22\u5f15<\/td>\nassert(i >= 0 && i < n);<\/td>\n<\/tr>\n
                                                \u51fd\u6570\u6307\u9488\u975e\u7a7a<\/td>\nassert(op != NULL);<\/td>\n<\/tr>\n
                                                \u8f6c\u79fb\u8868\u7d22\u5f15<\/td>\nassert(choice >= 1 && choice <= 4);<\/td>\n<\/tr>\n
                                                \u4e8c\u7ef4\u6570\u7ec4\u5f62\u53c2<\/td>\nint (*p)[N]<\/td>\n<\/tr>\n
                                                \u91ca\u653e\u540e\u7f6e\u7a7a<\/td>\nfree(p); p = NULL;<\/td>\n<\/tr>\n
                                                \u6700\u5c0f\u590d\u73b0<\/td>\n\u5355\u72ec\u5199\u4e00\u4e2a\u5c0f main<\/td>\n<\/tr>\n
                                                \u5355\u5143\u6d4b\u8bd5<\/td>\n\u7528 assert \u5199\u6d4b\u8bd5\u51fd\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                                                \n

                                                \u516b\u3001\u603b\u7ed3<\/h3>\n\n\u4e3b\u9898\u6838\u5fc3\u7ed3\u8bba<\/tr>\n\n\n\n\n\n\n\n
                                                \u5b57\u7b26\u6307\u9488\u53d8\u91cf<\/td>\nchar * \u6307\u5411\u5b57\u7b26\u6216\u5b57\u7b26\u4e32；\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u4e0d\u53ef\u4fee\u6539，\u5efa\u8bae\u7528 const char *<\/td>\n<\/tr>\n
                                                \u6570\u7ec4\u6307\u9488\u53d8\u91cf<\/td>\nint (*p)[N] \u662f\u6307\u9488，\u6307\u5411 int[N]，p + 1 \u8df3\u8fc7\u6574\u4e2a\u6570\u7ec4<\/td>\n<\/tr>\n
                                                \u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2<\/td>\n\u5f62\u53c2\u5199 int (*p)[N] \u6216 int a[][N]，\u7b2c\u4e8c\u7ef4\u4e0d\u80fd\u7701，\u4e0d\u80fd\u5199\u6210 int **<\/td>\n<\/tr>\n
                                                \u51fd\u6570\u6307\u9488\u53d8\u91cf<\/td>\nint (*pf)(int, int) \u6307\u5411\u51fd\u6570，pf(…) \u4e0e (*pf)(…) \u7b49\u4ef7<\/td>\n<\/tr>\n
                                                \u51fd\u6570\u6307\u9488\u6570\u7ec4<\/td>\nint (*p[N])(int, int) \u662f\u6570\u7ec4，\u5143\u7d20\u4e3a\u51fd\u6570\u6307\u9488<\/td>\n<\/tr>\n
                                                \u8f6c\u79fb\u8868<\/td>\n\u7528\u51fd\u6570\u6307\u9488\u6570\u7ec4\u6309\u7d22\u5f15\u8c03\u7528\u51fd\u6570，\u53ef\u66ff\u4ee3\u957f switch，\u7b80\u6d01\u4e14\u6613\u6269\u5c55<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                                \u7559\u4e2a\u5173\u6ce8\u652f\u6301\u4e00\u4e0b\u5427<\/p>\n","protected":false},"excerpt":{"rendered":"

                                                \u6df1\u5165\u7406\u89e3\u6307\u9488（\u56db）：\u5b57\u7b26\u6307\u9488\u3001\u6570\u7ec4\u6307\u9488\u3001\u51fd\u6570\u6307\u9488\u4e0e\u8f6c\u79fb\u8868 \u6570\u7ec4\u548c\u6307\u9488\u7684\u5173\u7cfb，\u672c\u8d28\u4e0a\u5c31\u662f\u201c\u5730\u5740 \u7c7b\u578b \u6b65\u957f\u201d\u7684\u5173\u7cfb\u3002 \u524d\u9762\u6211\u4eec\u5df2\u7ecf\u8ba8\u8bba\u4e86\u6570\u7ec4\u540d\u3001\u6307\u9488\u8bbf\u95ee\u3001\u4f20\u53c2\u9000\u5316\u3001\u4e8c\u7ea7\u6307\u9488\u3001\u6307\u9488\u6570\u7ec4\u548c\u4e8c\u7ef4\u6a21\u62df\u3002\u8fd9\u4e00\u7bc7\u7ee7\u7eed\u6cbf\u7740\u8fd9\u6761\u4e3b\u7ebf，\u628a\u5b57\u7b26\u6307\u9488\u3001\u6570\u7ec4\u6307\u9488\u3001\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u3001\u51fd\u6570\u6307\u9488\u3001\u51fd\u6570\u6307\u9488\u6570\u7ec4\u548c\u8f6c\u79fb\u8868\u4e00\u6b21\u8bb2\u900f\u3002 \u76ee\u5f55
                                                \n\u672c\u8282\u76ee\u6807\u5b57\u7b26\u6307\u9488\u53d8\u91cf\u6570\u7ec4\u6307\u9488\u53d8\u91cf\u4e8c\u7ef4\u6570\u7ec4\u4f20\u53c2\u7684\u672c\u8d28\u51fd\u6570\u6307\u9488\u53d8\u91cf\u51fd\u6570\u6307\u9488\u6570\u7ec4\u8f6c\u79fb\u8868\u5e38\u89c1\u9677\u9631\u4e0e\u8c03\u8bd5\u5efa\u8bae\u603b\u7ed3 <\/p>\n","protected":false},"author":2,"featured_media":111351,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[174,371,190],"topic":[],"class_list":["post-111369","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-371","tag-190"],"yoast_head":"\n\u6df1\u5165\u7406\u89e3\u6307\u94884 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/111369.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6df1\u5165\u7406\u89e3\u6307\u94884 - 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