{"id":49714,"date":"2025-07-30T19:16:48","date_gmt":"2025-07-30T11:16:48","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/49714.html"},"modified":"2025-07-30T19:16:48","modified_gmt":"2025-07-30T11:16:48","slug":"2025-%e8%ae%b0%e5%bd%95c%e8%af%ad%e8%a8%80%e6%8c%87%e9%92%88%e7%90%86%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/49714.html","title":{"rendered":"2025 \u8bb0\u5f55C\u8bed\u8a00\u6307\u9488\u7406\u89e3"},"content":{"rendered":"

C\u8bed\u8a00\u662f\u6211\u63a5\u89e6\u7f16\u7a0b\u8bed\u8a00\u7684\u5927\u95e8，\u867d\u7136\u4e0d\u96be，\u4f46\u662f\u5176\u4e2d\u6307\u9488\u95ee\u9898\u8fd8\u662f\u56f0\u6270\u8bb8\u4e45，\u540e\u6765\u5b66\u4e86\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00，\u5c31\u628a\u4ed6\u6682\u65f6\u6401\u7f6e\u4e86\u3002\u4eca\u5929，\u91cd\u65b0\u5bf9\u6307\u9488\u5185\u5bb9\u8fdb\u884c\u4e86\u66f4\u52a0\u6df1\u5165\u7684\u4e86\u89e3，\u4e0b\u9762，\u5c31\u6765\u804a\u804a\u8fd9\u795e\u79d8\u7684\u6307\u9488\u3002\u5927\u4f6c\u8fc7\u76ee\u5b8c\u8bb0\u5f97\u7ed9\u51fa\u5efa\u8bae\u54e6！<\/p>\n

\u4e00\u3001\u6211\u7406\u89e3\u7684\u6307\u9488<\/h3>\n

\u6307\u9488，\u53c8\u79f0\u6307\u9488\u53d8\u91cf，\u672c\u8d28\u4e0a\u662f\u4e00\u79cd\u53d8\u91cf，\u7528\u6765\u5b58\u653e\u5730\u5740，\u5141\u8bb8\u7a0b\u5e8f\u76f4\u63a5\u8bbf\u95ee\u5185\u5b58\u5730\u5740\u3002\u50cf\u5176\u4ed6\u8bf8\u5982 int \u7c7b\u578b\u7684\u53d8\u91cf\u5b58\u653e\u7684\u662f\u6574\u578b\u6570\u636e，\u53ea\u6709\u6574\u578b\u6570\u636e\u624d\u80fd\u8d4b\u503c\u7ed9 int \u53d8\u91cf，\u540c\u6837\u7684\u9053\u7406，\u53ea\u6709\u5730\u5740\u6570\u636e\u624d\u80fd\u8d4b\u503c\u7ed9\u6307\u9488<\/span>\u3002<\/p>\n

\u65e0\u8bba\u4ec0\u4e48\u7c7b\u578b\u662f\u6570\u636e，\u90fd\u9700\u8981\u5728\u5185\u5b58\u4e2d\u5f00\u8f9f\u7a7a\u95f4\u6765\u5b58\u653e，\u90a3\u5fc5\u7136\u4f1a\u6709\u5bf9\u5e94\u7684\u5185\u5b58\u5730\u5740\u3002\u5728C\u8bed\u8a00\u4e2d\u53ef\u4ee5\u901a\u8fc7\u53d6\u5730\u5740\u7b26 & \u6765\u83b7\u5f97\u6bcf\u4e2a\u53d8\u91cf\u7684\u5730\u5740，\u8fd9\u4e9b\u5730\u5740\u5c31\u53ef\u4ee5\u8d4b\u503c\u7ed9\u6307\u9488\u53d8\u91cf\u3002\u540c\u4e2a\u5730\u5740\u6307\u5411\u7684\u6570\u636e\u90fd\u662f\u76f8\u540c\u7684，\u53ea\u8981\u6539\u53d8\u5730\u5740\u4e2d\u6570\u636e\u7684\u503c，\u90a3\u4e48\u5176\u4ed6\u5730\u65b9\u4f7f\u7528\u5230\u8be5\u6570\u636e\u7684\u503c\u90fd\u4f1a\u4e00\u8d77\u6539\u53d8！<\/span><\/p>\n

\u4e8c\u3001\u6307\u9488\u7684\u58f0\u660e<\/span><\/h3>\n

\u5728C\u8bed\u8a00\u4e2d，\u5982\u679c\u6211\u4eec\u8981\u58f0\u660e\u4e00\u4e2a\u6574\u578b\u53d8\u91cf，\u90a3\u4e48\u6211\u4eec\u4f1a\u6709\u5982\u4e0b\u58f0\u660e\u8bed\u53e5：<\/span><\/p>\n

int a;<\/p>\n

\u8fd8\u6709\u5176\u4ed6\u58f0\u660e\u53d8\u91cf\u7684\u8bed\u53e5，\u8bf8\u5982：<\/p>\n

float b;
\nchar c;<\/p>\n

\u4e0d\u96be\u770b\u51fa，\u58f0\u660e\u4e00\u4e2a\u53d8\u91cf\u90fd\u662f\u7531 \u6570\u636e\u7c7b\u578b+\u53d8\u91cf\u540d<\/span> \u5f00\u59cb\u7684，\u90a3\u4e48，\u6307\u9488\u53d8\u91cf\u7684\u58f0\u660e\u662f\u5426\u662f\u540c\u6837\u7684\u65b9\u5f0f\u5462？<\/p>\n

\u5148\u8bf4\u7ed3\u8bba，\u6307\u9488\u53d8\u91cf\u662f\u58f0\u660e\u4e5f\u662f\u540c\u6837\u7684\u9053\u7406，\u8bf7\u770b：<\/p>\n

\/\/ \u58f0\u660e\u4e00\u4e2a\u6307\u5411\u6574\u578b(int)\u7684\u6307\u9488，\u521d\u59cb\u503c\u4e3a NULL（\u7a7a\u6307\u9488）
\nint* a = NULL;<\/p>\n

\/\/ \u58f0\u660e\u4e00\u4e2a\u6307\u5411\u5b57\u7b26\u578b(char)\u7684\u6307\u9488，\u7528\u4e8e\u64cd\u4f5c\u5b57\u7b26\u4e32\u6216\u5355\u4e2a\u5b57\u7b26
\nchar* b = NULL;<\/p>\n

\/\/ \u58f0\u660e\u4e00\u4e2a\u6307\u5411\u6d6e\u70b9\u578b(float)\u7684\u6307\u9488，\u53ef\u7528\u4e8e\u52a8\u6001\u5206\u914d\u6d6e\u70b9\u6570\u7ec4
\nfloat* c = NULL;<\/p>\n

\/\/ \u58f0\u660e\u4e00\u4e2a\u6307\u5411\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u578b(double)\u7684\u6307\u9488
\ndouble* ptr_double = NULL;<\/p>\n

\u521d\u59cb\u5316\u6307\u9488\u4e3a NULL \u662f\u826f\u597d\u7684\u7f16\u7a0b\u4e60\u60ef，\u53ef\u4ee5\u907f\u514d\u91ce\u6307\u9488\u95ee\u9898<\/p>\n

ps：\u5176\u5b9e\u6307\u9488\u7684\u58f0\u660e\u8fd8\u6709\u5176\u4ed6\u5199\u6cd5，\u867d\u7136\u5f62\u5f0f\u4e0d\u540c，\u4f46\u662f\u90fd\u662f\u4e00\u6837\u7684\u4f5c\u7528，\u8fd9\u91cc\u6211\u53ea\u5199\u6211\u89c9\u5f97\u6709\u52a9\u4e8e\u7406\u89e3\u7684\u4e00\u79cd，\u5176\u4ed6\u5f62\u5f0f\u53ef\u4ee5\u67e5\u9605\u8d44\u6599\u3002<\/p>\n

\u8fd9\u91cc，int* \u3001char* \u3001float* \u3001double* \u662f\u6307\u9488\u53d8\u91cf\u7684\u7c7b\u578b，a\u3001b\u3001c\u662f\u53d8\u91cf\u540d，\u8fd9\u6837\u4e00\u770b\u662f\u4e0d\u662f\u5f88\u6e05\u695a\u4e86\u3002<\/p>\n

\u8ddf\u6574\u578b\u53d8\u91cf\u4e00\u6837，\u6574\u578b\u53d8\u91cf\u53ea\u80fd\u5b58\u653e\u6574\u578b\u6570\u636e，\u4e0d\u80fd\u5b58\u653e\u5b57\u7b26\u578b\u3001\u6d6e\u70b9\u578b\u7b49\u5176\u4ed6\u53d8\u91cf\u3002\u6307\u9488\u867d\u7136\u8bf4\u53ea\u80fd\u5b58\u653e\u5730\u5740\u6570\u636e，\u4f46\u662f\u4e5f\u662f\u6709\u8981\u6c42\u7684，\u5982 int* \u578b\u6307\u9488，\u5b83\u53ea\u80fd\u5b58\u653e\u6574\u578b\u53d8\u91cf\u7684\u5730\u5740，\u4e0d\u80fd\u5c06\u5b57\u7b26\u578b\u7b49\u5176\u4ed6\u7c7b\u578b\u6570\u636e\u7684\u5730\u5740\u8d4b\u503c\u7ed9 int*\u3002\u6b63\u6240\u8c13\u5404\u56de\u5404\u5bb6，\u8fd9\u662f\u5728\u4e00\u5f00\u59cb\u58f0\u660e\u5c31\u5df2\u7ecf\u51b3\u5b9a\u597d\u7684，\u4e0d\u7136\u4e3a\u4ec0\u4e48\u8981\u90a3\u4e48\u9ebb\u70e6，\u5b9a\u4e49\u90a3\u4e48\u591a\u79cd\u58f0\u660e\u6307\u9488\u7684\u7c7b\u578b\u5462，\u76f4\u63a5\u7528\u4e00\u4e2a\u5c31\u53ef\u4ee5\u4e86\u5440\u3002<\/p>\n

\u8fd9\u4e2a\u5730\u65b9，\u6bcf\u4e2a\u4eba\u7684\u7406\u89e3\u4e0d\u4e00\u6837，\u6709\u4e9b\u5927\u4f6c\u4f1a\u628a\u6307\u9488\u7684\u58f0\u660e\u5206\u62103\u90e8\u5206，\u4f46\u662f\u6211\u611f\u89c9\u53ea\u8981\u80fd\u7406\u89e3\u5c31\u90fd\u4e00\u6837，\u6240\u4ee5，\u8fd9\u91cc\u8bb0\u5f55\u7684\u662f\u6211\u81ea\u5df1\u7684\u7406\u89e3，\u5982\u679c\u5bf9\u4f60\u6709\u5e2e\u52a9\u90a3\u975e\u5e38\u8363\u5e78，\u5982\u679c\u89c9\u5f97\u4e0e\u4f60\u7406\u89e3\u6709\u51b2\u7a81\u90a3\u4e5f\u6ca1\u5173\u7cfb，\u6bcf\u4e2a\u4eba\u7684\u7406\u89e3\u90fd\u4e0d\u540c\u3002\u6211\u4eec\u90fd\u662f\u7ad9\u5728\u5de8\u4eba\u7684\u80a9\u8180\u4e0a\u5b66\u4e60\u7684，\u5982\u679c\u6ca1\u80fd\u5e2e\u52a9\u5230\u4f60，\u8fd8\u6709\u5176\u4ed6\u975e\u5e38\u4f18\u79c0\u7684\u5927\u4f6c，\u6211\u4e5f\u662f\u53c2\u8003\u4e86\u5f88\u591a\u5927\u4f6c\u7684\u6587\u7ae0，\u624d\u6709\u4e86\u8fd9\u7bc7\u7406\u89e3\u7684，\u4e00\u8d77\u52a0\u6cb9\u5440！<\/p>\n

\u4e09\u3001\u6307\u9488\u7684\u4f7f\u7528<\/h3>\n

1\u3001\u6307\u9488\u8d4b\u503c<\/h4>\n

\u6307\u9488\u662f\u7528\u6765\u5b58\u653e\u5730\u5740\u6570\u636e\u7684，\u6240\u4ee5，\u6211\u4eec\u53ef\u4ee5\u5c06\u6bcf\u4e2a\u53d8\u91cf\u7684\u5730\u5740\u8d4b\u503c\u7ed9\u6307\u9488，\u5982\u4e0b：<\/p>\n

int a = 10; \/\/ \u5b9a\u4e49\u666e\u901a\u6574\u578b\u53d8\u91cf
\nint* p; \/\/ \u5b9a\u4e49\u4e00\u4e2a\u6307\u5411\u6574\u578b\u7684\u6307\u9488
\np = &a; \/\/ \u5c06\u53d8\u91cfa\u7684\u5730\u5740\u8d4b\u7ed9\u6307\u9488p<\/p>\n

\u53ef\u4ee5\u901a\u8fc7\u53d6\u5730\u5740\u7b26 \u201c & \u201d \u5c06\u53d8\u91cf\u7684\u5730\u5740\u53d6\u51fa，\u901a\u8fc7\u8d4b\u503c\u64cd\u4f5c，\u5c06\u5730\u5740\u6570\u636e\u8d4b\u503c\u7ed9\u6307\u9488\u3002<\/p>\n

2\u3001\u89e3\u5f15\u7528\u6307\u9488<\/h4>\n

\u524d\u9762\u63d0\u5230，\u6307\u9488\u5b58\u653e\u7684\u662f\u53d8\u91cf\u7684\u5730\u5740，\u90a3\u4e48，\u6211\u4eec\u80fd\u5426\u901a\u8fc7\u6307\u9488，\u53d6\u5230\u5176\u5b58\u653e\u7684\u5bf9\u5e94\u6570\u636e\u5462？<\/p>\n

\u8fd9\u5c31\u4e0d\u5f97\u4e0d\u63d0\u5230 \u89e3\u5f15\u7528\u6307\u9488 \u4e86，\u89e3\u6307\u9488\u4fbf\u662f\u5c06\u6307\u9488\u4e2d\u5730\u5740\u6307\u5411\u7684\u6570\u636e\u53d6\u51fa\u6765<\/span>\u3002\u5229\u7528 \u201c * \u201d \u4fbf\u53ef\u505a\u5230\u3002<\/p>\n

\u683c\u5f0f：<\/p>\n

*\u6307\u9488\u540d<\/p>\n

\u793a\u4f8b：<\/p>\n

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

int main() {
\n int a = 10;
\n int* p; \/\/ 1. \u5b9a\u4e49\u6307\u9488
\n p = &a; \/\/ 2. \u6307\u9488\u6307\u5411\u53d8\u91cfa\u7684\u5730\u5740<\/p>\n

\/\/ \u89e3\u5f15\u7528\u6307\u9488：\u8bbf\u95eep\u6240\u6307\u5411\u7684\u503c
\n printf("a\u7684\u503c\u662f: %d\\\\n", a); \/\/ \u8f93\u51fa: 10
\n printf("p\u6307\u5411\u7684\u503c\u662f: %d\\\\n", *p); \/\/ \u8f93\u51fa: 10（*p \u5c31\u662f a）<\/p>\n

\/\/ \u4fee\u6539p\u6307\u5411\u7684\u503c
\n *p = 20; \/\/ \u76f8\u5f53\u4e8e a = 20;<\/p>\n

printf("\u4fee\u6539\u540ea\u7684\u503c\u662f: %d\\\\n", a); \/\/ \u8f93\u51fa: 20<\/p>\n

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

\u53ef\u4ee5\u770b\u51fa，\u89e3\u6307\u9488\u5f97\u5230\u7684 *p \u7b49\u540c\u4e8e\u5176\u6267\u884c\u7684\u53d8\u91cf a，\u5bf9 *p \u64cd\u4f5c\u5c31\u662f\u5bf9 a \u64cd\u4f5c\u3002<\/p>\n

3\u3001\u7279\u6b8a\u7684\u6307\u9488\u2014\u2014\u6570\u7ec4\u540d<\/h4>\n

\u6570\u7ec4\u540d\u5176\u5b9e\u662f\u7279\u6b8a\u7684\u6307\u9488，\u4e3a\u5e38\u91cf，\u5176\u6307\u5411\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20，\u901a\u8fc7\u6570\u7ec4\u540d\u89e3\u6307\u9488\u5f97\u5230\u7684\u662f\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u503c，\u5982：<\/p>\n

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

int main() {
\n int arr[5] = {10, 20, 30, 40, 50};<\/p>\n

\/\/ \u4f7f\u7528\u6570\u7ec4\u540d\u8bbf\u95ee\u7b2c\u4e00\u4e2a\u5143\u7d20
\n printf("First element: %d\\\\n", arr[0]); \/\/ 10
\n printf("Third element: %d\\\\n", *arr); \/\/ 10，\u7b49\u4ef7\u4e8e arr[0]<\/p>\n

\/\/ \u4f7f\u7528\u6307\u9488\u7b97\u672f\u8bbf\u95ee\u7b2c\u4e09\u4e2a\u5143\u7d20
\n printf("Third element: %d\\\\n", *(arr + 2)); \/\/ 30，\u7b49\u4ef7\u4e8e arr[2]<\/p>\n

\/\/ \u904d\u5386\u6570\u7ec4\u5e76\u6253\u5370\u6240\u6709\u5143\u7d20
\n for (int i = 0; i < 5; ++i) {
\n printf("Element %d: %d\\\\n", i, *(arr + i));
\n }<\/p>\n

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

\u56de\u60f3\u6211\u4eec\u5b9a\u4e49\u6570\u7ec4\u65f6，\u662f\u4e0d\u662f\u8fd8\u8981\u6307\u5b9a\u6570\u7ec4\u7684\u7c7b\u578b\u5462，\u6574\u578b\u6570\u7ec4\u4e0d\u80fd\u5b58\u653e\u6d6e\u70b9\u578b\u7684\u6570\u636e，\u8fd9\u4fbf\u8ddf\u524d\u9762\u63d0\u5230\u7684\u6307\u9488\u4e00\u6837\u3002\u5728\u6570\u7ec4\u4e2d，\u7531\u4e8e\u5b58\u653e\u65f6\u540c\u79cd\u7c7b\u578b\u7684\u6570\u636e，\u6bcf\u4e2a\u6570\u636e\u9700\u8981\u7684\u5185\u5b58\u7a7a\u95f4\u5df2\u7ecf\u56fa\u5b9a，\u6240\u4ee5\u53ef\u4ee5\u901a\u8fc7\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u5730\u5740，\u52a0\u4e0a\u4e00\u5355\u4f4d，\u627e\u5230\u4e0b\u4e00\u4e2a\u5143\u7d20\u3002<\/p>\n

\u6bd4\u5982：\u5728int\u578b\u6570\u7ec4\u4e2d，\u6bcf\u4e2a\u5143\u7d20\u53604\u5b57\u8282，\u90a3\u4e48\u7a0b\u5e8f\u4f1a\u81ea\u52a8\u8ba1\u7b97，\u5728\u8be5\u6570\u7ec4\u4e2d，\u4e00\u4e2a\u5355\u4f4d\u5c31\u662f4\u5b57\u8282，\u5c31\u80fd\u7acb\u5373\u627e\u5230\u4e0b\u4e00\u4e2a\u5143\u7d20，\u56de\u60f3\u6211\u4eec\u5728\u4f7f\u7528\u6570\u7ec4\u7684\u65f6\u5019，\u662f\u4e0d\u662f\u901a\u8fc7a[0] \u3001a[1] \u3001a[2] \u7684\u65b9\u5f0f\u6765\u83b7\u53d6\u6570\u7ec4\u4e2d\u5bf9\u5e94\u4f4d\u7f6e\u7684\u5143\u7d20\u5462\u3002a[0]\u5c31\u662f\u7b2c0\u4e2a\u5143\u7d20，\u4e5f\u662f\u9996\u5730\u5740+0\u5355\u4f4d；a[1]\u662f\u7b2c\u4e00\u4e2a\u5143\u7d20，\u4e5f\u662f\u9996\u5730\u5740+1\u5355\u4f4d；…….<\/p>\n

4\u3001\u51fd\u6570\u5b9e\u53c2\u5e94\u7528<\/h4>\n

\u5f53\u6211\u4eec\u5728\u51fd\u6570\u4e2d\u4f7f\u7528\u6307\u9488\u4f5c\u4e3a\u5b9e\u53c2\u65f6，\u5176\u4f20\u9012\u7684\u5176\u5b9e\u662f\u53d8\u91cf\u7684\u5730\u5740，\u5982\u679c\u901a\u8fc7\u6307\u9488\u6539\u53d8\u6570\u636e\u7684\u503c，\u90a3\u4e48\u4e5f\u4f1a\u6539\u53d8\u539f\u672c\u53d8\u91cf\u7684\u503c\u3002<\/p>\n

\u5f62\u5f0f\u4e00：\u8c03\u7528\u51fd\u6570\u65f6，\u5982\u679c\u4f20\u9012\u7684\u662f\u666e\u901a\u53d8\u91cf\u7684\u53d8\u91cf\u540d，\u90a3\u4e48\u7a0b\u5e8f\u53ea\u4f1a\u628a\u8be5\u53d8\u91cf\u7684\u503c\u590d\u5236\u4e00\u4efd\u7528\u4e8e\u5b9e\u53c2\u4f20\u9012，\u5f53\u5728\u51fd\u6570\u4e2d\u6539\u53d8\u5b9e\u53c2\u7684\u503c，\u5e76\u4e0d\u4f1a\u6539\u53d8\u4e3b\u51fd\u6570\u4e2d\u53d8\u91cf\u7684\u503c；<\/h5>\n

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

\/\/ \u51fd\u6570：\u5c1d\u8bd5\u4fee\u6539\u4f20\u5165\u7684\u6574\u6570
\nvoid modifyByValue(int x) {
\n x = 100; \/\/ \u4fee\u6539\u7684\u662f\u526f\u672c
\n printf("\u51fd\u6570\u5185 x = %d\\\\n", x);
\n}<\/p>\n

int main() {
\n int a = 10;
\n printf("\u8c03\u7528\u524d a = %d\\\\n", a);<\/p>\n

modifyByValue(a); \/\/ \u4f20\u5165\u666e\u901a\u53d8\u91cf（\u503c\u4f20\u9012）<\/p>\n

printf("\u8c03\u7528\u540e a = %d\\\\n", a); \/\/ a \u7684\u503c\u672a\u6539\u53d8<\/p>\n

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

\u8f93\u51fa\u7ed3\u679c<\/p>\n

\u8c03\u7528\u524d a = 10
\n\u51fd\u6570\u5185 x = 100
\n\u8c03\u7528\u540e a = 10<\/p>\n

\u5f62\u5f0f\u4e8c：\u8c03\u7528\u51fd\u6570\u65f6，\u5982\u679c\u4f20\u9012\u7684\u662f\u666e\u901a\u53d8\u91cf\u7684\u5730\u5740\u2014\u2014\u6307\u5411\u8be5\u53d8\u91cf\u7684\u6307\u9488，\u90a3\u4e48\u5b9e\u9645\u4f20\u9012\u7684\u5b9e\u53c2\u4e3a\u6539\u5730\u5740\u503c，\u5728\u51fd\u6570\u4e2d\u901a\u8fc7\u8be5\u5b9e\u53c2\u6539\u53d8\u7684\u503c，\u662f\u4f1a\u76f4\u63a5\u6539\u53d8\u4e3b\u51fd\u6570\u4e2d\u53d8\u91cf\u7684\u503c\u3002<\/h5>\n

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

\/\/ \u51fd\u6570：\u901a\u8fc7\u6307\u9488\u4fee\u6539\u53d8\u91cf
\nvoid modifyByPointer(int *p) {
\n *p = 200; \/\/ \u4fee\u6539 p \u6307\u5411\u7684\u5185\u5b58\u4e2d\u7684\u503c
\n printf("\u51fd\u6570\u5185 *p = %d\\\\n", *p);
\n}<\/p>\n

int main() {
\n int b = 20;
\n printf("\u8c03\u7528\u524d b = %d\\\\n", b);<\/p>\n

modifyByPointer(&b); \/\/ \u4f20\u5165\u53d8\u91cf\u7684\u5730\u5740（\u6307\u9488\u505a\u5b9e\u53c2）<\/p>\n

printf("\u8c03\u7528\u540e b = %d\\\\n", b); \/\/ b \u7684\u503c\u88ab\u4fee\u6539<\/p>\n

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

\u8f93\u51fa\u7ed3\u679c<\/p>\n

\u8c03\u7528\u524d b = 20
\n\u51fd\u6570\u5185 *p = 200
\n\u8c03\u7528\u540e b = 200<\/p>\n

\u6307\u9488\u7684\u77e5\u8bc6\u8fd8\u6709\u5f88\u591a，\u6211\u6240\u7406\u89e3\u7684\u4e0d\u8fc7\u662f\u5176\u4e2d\u4e00\u70b9，\u60f3\u66f4\u6df1\u5165\u7406\u89e3\u8fd8\u9700\u8981\u518d\u67e5\u770b\u5176\u4ed6\u8d44\u6599\u3002\u5f88\u9ad8\u5174\u80fd\u5e2e\u52a9\u5230\u4f60，\u5982\u679c\u6709\u5199\u9519，\u6b22\u8fce\u6307\u6b63！<\/p>\n

\u8bb0\u5f55\u4e8e2025.07.30<\/p>\n","protected":false},"excerpt":{"rendered":"

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