{"id":53438,"date":"2025-08-12T11:29:59","date_gmt":"2025-08-12T03:29:59","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/53438.html"},"modified":"2025-08-12T11:29:59","modified_gmt":"2025-08-12T03:29:59","slug":"%e3%80%9006%e3%80%91%e6%96%b0%e5%9b%bd%e9%83%bd-%e6%96%b0%e5%9b%bd%e9%83%bd-%e5%b5%8c%e5%85%a5%e5%bc%8f%e7%ac%94%e8%af%95%ef%bc%8c%e6%a0%a1%e6%8b%9b%ef%bc%8c%e9%a2%98%e7%9b%ae","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/53438.html","title":{"rendered":"\u301006\u3011\u65b0\u56fd\u90fd\u2014\u2014\u65b0\u56fd\u90fd \u5d4c\u5165\u5f0f\u7b14\u8bd5\uff0c\u6821\u62db\uff0c\u9898\u76ee\u8bb0\u5f55\u53ca\u89e3\u6790"},"content":{"rendered":"<p>\u65b0\u56fd\u90fd\u2014\u2014\u65b0\u56fd\u90fd \u5d4c\u5165\u5f0f\u7b14\u8bd5&#xff0c;\u6821\u62db&#xff0c;\u9898\u76ee\u8bb0\u5f55\u53ca\u89e3\u6790 <\/p>\n<h4> <\/h4>\n<ul>\n<li>\u4e00\u3001\u3010\u4e0d\u5b9a\u9879\u9009\u62e9\u9898\u3011(3*10)<\/li>\n<li>1.\u4e0b\u9762\u4e0d\u6b63\u786e\u7684\u5b57\u7b26\u4e32\u5e38\u91cf\u662f()<\/li>\n<li>2. \u5173\u4e8e\u84dd\u7259\u548cGPRS\u7f51\u7edc,\u4e0b\u9762\u63cf\u8ff0\u6b63\u786e\u7684\u6709&#xff08;)<\/li>\n<li>3.\u4e0b\u5217\u5404\u4e2a\u9519\u8bef\u4e2d,\u54ea\u4e00\u4e2a\u4e0d\u5c5e\u4e8e\u7f16\u8bd1\u9519\u8bef()<\/li>\n<li>4. \u6709\u4ee5\u4e0b\u7a0b\u5e8f\u6bb5,\u6267\u884c\u540e,mul\u7684\u503c\u4e3a()<\/li>\n<li>5.C\u8bed\u8a00\u4e2d,\u5b9a\u4e49PI\u4e3a\u4e00\u4e2a\u7b26\u53f7\u5e38\u91cf,\u6b63\u786e\u7684\u662f(&#xff09;<\/li>\n<li>6. \u60f3\u5bf9\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\u7684\u5c3e\u90e8\u8ffd\u52a0\u5199\u5165,\u5e94\u5f53\u5728fopen\u8bed\u53e5\u4e2d\u4f7f<\/li>\n<li>9.\u5bf9\u4e8e\u5faa\u73af\u4f53\u7684\u6267\u884c\u6548\u7387,\u4e0b\u8ff0\u8bf4\u6cd5\u6b63\u786e\u7684\u662f&#xff08;)<\/li>\n<li>10. \u5173\u4e8eLinux\u5e93\u6587\u4ef6\u7684\u63cf\u8ff0\u6b63\u786e\u7684\u662f()<\/li>\n<li>\u4e8c\u3001\u5224\u65ad\u9898 (2*10 )<\/li>\n<li>1 Linux\u7cfb\u7edf\u4e2d,\u82e5\u6587\u4ef6\u7684\u6743\u9650\u4e3a644,\u5219\u8be5\u6587\u4ef6\u53ef\u4ee5\u88ab\u540c\u7ec4\u7684\u5176\u4ed6\u7528\u6237\u8bfb\u5199&#xff08;)<\/li>\n<li>2 do-while\u8bed\u53e5\u6784\u6210\u7684\u5faa\u73af\u53ea\u80fd\u7528break\u8bed\u53e5\u9000\u51fa.()<\/li>\n<li>3 \u5728C\u8bed\u8a00\u4e2d,\u8981\u6c42\u53c2\u52a0\u8fd0\u7b97\u7684\u6570\u5fc5\u987b\u662f\u6574\u6570\u7684\u8fd0\u7b97\u7b26\u662f%\u3002(&#xff09;<\/li>\n<li>4 \u5728\u51fd\u6570\u4f53\u5185\u7528malloc(x)\u5411\u8bf7\u5185\u5b58\u4f7f\u7528,\u5f53\u51fd\u6570\u88ab\u8c03\u7528\u5b8c\u540e,\u4f1a\u81ea\u52a8\u91ca\u653e\u6240\u7533\u8bf7\u7684\u5185\u5b58\u3002<\/li>\n<li>5 CMOS\u7535\u5e73\u53ef\u4ee5\u76f4\u63a5\u9a71\u52a8TTL\u7535\u8def,\u800cTTL\u7535\u5e73\u4e0d\u53ef\u4ee5\u76f4\u63a5\u9a71\u52a8CMOS\u7535\u8def<\/li>\n<li>6 LCD\u867d\u7136\u53ef\u4ee5\u663e\u793a\u5f88\u7eda\u4e3d\u7684\u56fe\u5f62&#xff0c;\u4f46\u5b83\u4e0d\u53ef\u4ee5\u81ea\u53d1\u5149,\u9700\u8981\u501f\u52a9\u5916\u754c\u5149\u6e90\u3002<\/li>\n<li>7 \u6709\u4ee5\u4e0b\u7a0b\u5e8f\u6bb5int k&#061;0 while(k&#061;1)k&#043; &#043;; while\u5faa\u73af\u6267\u884c\u7684\u6b21\u6570\u662f\u65e0\u9650\u6b21<\/li>\n<li>8 \u8bbe\u5b9a #define defS struct s * , typedef struct s * tpfPS; \u5219defPS p1, p2; tpfPS p3, p4;\u5176\u4e2dp1,p2,p3,p4\u90fd\u4e3a\u7ed3\u6784\u4f53\u6307\u9488<\/li>\n<li>9 linux\u5e73\u53f0(platform)\u8bbe\u5907\u9a71\u52a8\u5fc5\u987b\u63d0\u4f9bprobe\u548cremove\u65b9\u6cd5\u3002<\/li>\n<li>\u4e09\u3001\u586b\u7a7a\u9898 &#xff08;4*5&#xff09;<\/li>\n<li>1 \u7ed9128\u4e2a\u5b57\u7b26\u7f16\u7801,\u81f3\u5c11\u9700\u8981\u4f4d\u4e8c\u8fdb\u5236\u6570\u3002<\/li>\n<li>2 \u57fa\u672c\u7684\u4e09\u79cd\u903b\u8f91\u8fd0\u7b97\u662f<\/li>\n<li>3 uchar a[] &#061; {0x60,0x70,0x80, 0x90, 0x00, 0x10, 0x20, 0x30,040,0&#215;50}; uchar len strlen(a); \u5219 <font color=\"green\">len &#061; 4 <\/font><\/li>\n<li>4 \u5199\u4e00\u4e2a&#034;\u6807\u51c6&#034;\u5b8fMIN,\u8fd9\u4e2a\u5b8f\u8f93\u5165\u4e24\u4e2a\u53c2\u6570\u5e76\u8fd4\u56de\u8f83\u5c0f\u7684\u4e00\u4e2a<\/li>\n<li>5 32\u4f4d\u7cfb\u7edf\u4e0b&#xff0c;C&#043;&#043;\u7a0b\u5e8f&#xff0c;char str[] &#061; &#034;hello world&#034;;sizeof(str) &#061;<\/li>\n<li>\u56db\u3001\u7b80\u7b54\u9898&#xff08;10*3&#xff09;<\/li>\n<li>1.\u5982\u4f55\u5f15\u7528\u4e00\u4e2a\u5df2\u7ecf\u5b9a\u4e49\u8fc7\u7684\u5168\u5c40\u53d8\u91cf?<\/li>\n<li>2 \u4ec0\u4e48\u662f\u8fdb\u7a0b\u548c\u7ebf\u7a0b&#xff1f;\u6709\u4f55\u533a\u522b&#xff1f;<\/li>\n<li>3 \u7b80\u8ff0\u5c315V\u7cfb\u7edf\u800c\u8a00TTL\u7535\u5e73\u548cCMOS\u7535\u5e73\u5b9a\u4e49\u662f\u4ec0\u4e48?\u4e8c\u8005\u53ef\u4ee5\u4e92\u76f8\u9a71\u52a8\u5417?(10\u5206)<\/li>\n<li>\n<ul>\n<li>1 TTL\u7535\u8def<\/li>\n<li>\n<ul>\n<li>TTL\u7535\u5e73<\/li>\n<\/ul>\n<\/li>\n<li>2\u3001 CMOS\u7535\u8def<\/li>\n<li>\n<ul>\n<li>CMOS\u7535\u5e73<\/li>\n<\/ul>\n<\/li>\n<li>3\u3001TTL\u548cCOMS\u7535\u8def\u6bd4\u8f83&#xff1a;<\/li>\n<li>TTL\u4e0eCMOS\u76f8\u4e92\u9a71\u52a8<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p> \u65b0\u56fd\u90fd\u2014\u2014\u65b0\u56fd\u90fd \u5d4c\u5165\u5f0f\u7b14\u8bd5&#xff0c;\u6821\u62db&#xff0c;\u9898\u76ee\u8bb0\u5f55\u53ca\u89e3\u6790<\/p>\n<h2>\u4e00\u3001\u3010\u4e0d\u5b9a\u9879\u9009\u62e9\u9898\u3011(3*10)<\/h2>\n<h2>1.\u4e0b\u9762\u4e0d\u6b63\u786e\u7684\u5b57\u7b26\u4e32\u5e38\u91cf\u662f()<\/h2>\n<p>A<\/p>\n<p>A<span class=\"token punctuation\">.<\/span> &#039;abc&#039;<br \/>\nB<span class=\"token punctuation\">.<\/span><span class=\"token string\">&#034;12&#039;12&#034;<\/span><br \/>\nC<span class=\"token punctuation\">.<\/span><span class=\"token string\">&#034;0&#034;<\/span><br \/>\nD<span class=\"token punctuation\">.<\/span><span class=\"token string\">&#034;&#034;<\/span><\/p>\n<h2>2. \u5173\u4e8e\u84dd\u7259\u548cGPRS\u7f51\u7edc,\u4e0b\u9762\u63cf\u8ff0\u6b63\u786e\u7684\u6709&#xff08;)<\/h2>\n<p>BC &#xff08;C\u4e0d\u592a\u786e\u5b9a&#xff09;<\/p>\n<p>A<span class=\"token punctuation\">.<\/span>\u84dd\u7259\u662f\u4f20\u8f93\u8bed\u97f3\u7684<span class=\"token punctuation\">,<\/span>GPRS\u662f\u4f20\u8f93\u6570\u636e\u7684<br \/>\nB<span class=\"token punctuation\">.<\/span>\u84dd\u7259\u4f20\u8f93\u8ddd\u79bb\u77ed<span class=\"token punctuation\">,<\/span>GPRS\u4f20\u8f93\u8ddd\u79bb\u66f4\u957f<br \/>\nC<span class=\"token punctuation\">.<\/span>\u84dd\u7259\u4f20\u8f93\u901f\u5ea6\u6162<span class=\"token punctuation\">,<\/span>GPRS\u4f20\u8f93\u901f\u5ea6\u5feb<br \/>\nD<span class=\"token punctuation\">.<\/span>\u84dd\u7259\u548cGPRS\u5de5\u4f5c\u9891\u70b9\u76f8\u540c<\/p>\n<h2>3.\u4e0b\u5217\u5404\u4e2a\u9519\u8bef\u4e2d,\u54ea\u4e00\u4e2a\u4e0d\u5c5e\u4e8e\u7f16\u8bd1\u9519\u8bef()<\/h2>\n<p>A<\/p>\n<p>A<span class=\"token punctuation\">.<\/span>\u6539\u53d8\u00d7\u539f\u503c<span class=\"token number\">3<\/span>\u4e3a<span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span>\u5199\u4f5c\u201cx<span class=\"token operator\">&#061;&#061;<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span>\u201d<br \/>\nB<span class=\"token punctuation\">.<\/span>\u82b1\u62ec\u53f7\u4e0d\u914d\u5bf9<br \/>\nC<span class=\"token punctuation\">.<\/span>\u590d\u5408\u8bed\u53e5\u4e2d\u7684\u540e\u4e00\u6761\u8bed\u53e5\u540e\u672a\u52a0\u5206\u53f7<br \/>\nD<span class=\"token punctuation\">.<\/span>\u53d8\u91cf\u6709\u5f15\u7528\u3001\u65e0\u5b9a\u4e49<\/p>\n<h2>4. \u6709\u4ee5\u4e0b\u7a0b\u5e8f\u6bb5,\u6267\u884c\u540e,mul\u7684\u503c\u4e3a()<\/h2>\n<p>B<\/p>\n<p><span class=\"token keyword\">int<\/span> a<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">7<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">9<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> mul<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">,<\/span> x<span class=\"token punctuation\">;<\/span><br \/>\nmul <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\ndata <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&amp;<\/span>a<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>x <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> x <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">;<\/span> x<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nmul <span class=\"token operator\">*&#061;<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">(<\/span>data <span class=\"token operator\">&#043;<\/span> x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>A<span class=\"token punctuation\">.<\/span><span class=\"token number\">15<\/span><br \/>\nB<span class=\"token punctuation\">.<\/span><span class=\"token number\">105<\/span><br \/>\nC<span class=\"token punctuation\">.<\/span><span class=\"token number\">315<\/span><br \/>\nD<span class=\"token punctuation\">.<\/span><span class=\"token number\">945<\/span><\/p>\n<p>\u6ce8\u610f&#xff1a;data &#061; &amp;a[1]; data \u7684\u9996\u5730\u5740\u662f\u6307\u5411\u6570\u7ec4a\u7684\u7b2c\u4e8c\u4e2a\u5143\u7d20&#xff0c; \u6267\u884c\u7ed3\u679c\u4e3a mul35*7 &#061; 105<\/p>\n<h2>5.C\u8bed\u8a00\u4e2d,\u5b9a\u4e49PI\u4e3a\u4e00\u4e2a\u7b26\u53f7\u5e38\u91cf,\u6b63\u786e\u7684\u662f(&#xff09;<\/h2>\n<p>A<\/p>\n<p>A<span class=\"token punctuation\">.<\/span> #define PI <span class=\"token number\">3.14<\/span><br \/>\nB<span class=\"token punctuation\">.<\/span> define PI <span class=\"token number\">3.14<\/span><br \/>\nC<span class=\"token punctuation\">.<\/span> #include  PI <span class=\"token number\">3.14<\/span><br \/>\nD<span class=\"token punctuation\">.<\/span> include PI <span class=\"token number\">3.14<\/span><\/p>\n<h2>6. \u60f3\u5bf9\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\u7684\u5c3e\u90e8\u8ffd\u52a0\u5199\u5165,\u5e94\u5f53\u5728fopen\u8bed\u53e5\u4e2d\u4f7f<\/h2>\n<p>D<\/p>\n<p>A<span class=\"token punctuation\">.<\/span>w<br \/>\nB<span class=\"token punctuation\">.<\/span> r<br \/>\nC<span class=\"token punctuation\">.<\/span> wb<br \/>\nD<span class=\"token punctuation\">.<\/span>a<\/p>\n<p>c\u8bed\u8a00 fopen\u3001fwrite\u3001fread\u3001fclose\u51fd\u6570&#xff08;\u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u8bfb\u5199\u8986\u76d6\u6216\u8ffd\u52a0&#xff09;fgets()\u51fd\u6570<\/p>\n<p>C \u5e93\u51fd\u6570 &#8211; fopen()<\/p>\n<p>\u58f0\u660e \u4e0b\u9762\u662f fopen() \u51fd\u6570\u7684\u58f0\u660e\u3002<\/p>\n<p>FILE <span class=\"token operator\">*<\/span><span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>filename<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>mode<span class=\"token punctuation\">)<\/span><\/p>\n<p>\u53c2\u6570<\/p>\n<ul>\n<li>filename \u2013 \u8fd9\u662f C \u5b57\u7b26\u4e32&#xff0c;\u5305\u542b\u4e86\u8981\u6253\u5f00\u7684\u6587\u4ef6\u540d\u79f0\u3002<\/li>\n<li>mode \u2013 \u8fd9\u662f C \u5b57\u7b26\u4e32&#xff0c;\u5305\u542b\u4e86\u6587\u4ef6\u8bbf\u95ee\u6a21\u5f0f&#xff0c;\u6a21\u5f0f\u5982\u4e0b&#xff1a;<\/li>\n<\/ul>\n<p>\u6a21\u5f0f     \u63cf\u8ff0<br \/>\n<span class=\"token string\">&#034;r&#034;<\/span>\u6253\u5f00\u4e00\u4e2a\u7528\u4e8e\u8bfb\u53d6\u7684\u6587\u4ef6\u3002\u8be5\u6587\u4ef6\u5fc5\u987b\u5b58\u5728\u3002<br \/>\n<span class=\"token string\">&#034;w&#034;<\/span>\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u5199\u5165\u7684\u7a7a\u6587\u4ef6\u3002\u5982\u679c\u6587\u4ef6\u540d\u79f0\u4e0e\u5df2\u5b58\u5728\u7684\u6587\u4ef6\u76f8\u540c&#xff0c;\u5219\u4f1a\u5220\u9664\u5df2\u6709\u6587\u4ef6\u7684\u5185\u5bb9&#xff0c;\u6587\u4ef6\u88ab\u89c6\u4e3a\u4e00\u4e2a\u65b0\u7684\u7a7a\u6587\u4ef6\u3002<br \/>\n<span class=\"token string\">&#034;a&#034;<\/span>\u8ffd\u52a0\u5230\u4e00\u4e2a\u6587\u4ef6\u3002\u5199\u64cd\u4f5c\u5411\u6587\u4ef6\u672b\u5c3e\u8ffd\u52a0\u6570\u636e\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728&#xff0c;\u5219\u521b\u5efa\u6587\u4ef6\u3002<br \/>\n<span class=\"token string\">&#034;r&#043;&#034;<\/span>\u6253\u5f00\u4e00\u4e2a\u7528\u4e8e\u66f4\u65b0\u7684\u6587\u4ef6&#xff0c;\u53ef\u8bfb\u53d6\u4e5f\u53ef\u5199\u5165\u3002\u8be5\u6587\u4ef6\u5fc5\u987b\u5b58\u5728\u3002<br \/>\n<span class=\"token string\">&#034;w&#043;&#034;<\/span>\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u8bfb\u5199\u7684\u7a7a\u6587\u4ef6\u3002<br \/>\n<span class=\"token string\">&#034;a&#043;&#034;<\/span>\u6253\u5f00\u4e00\u4e2a\u7528\u4e8e\u8bfb\u53d6\u548c\u8ffd\u52a0\u7684\u6587\u4ef6\u3002<\/p>\n<p>\u5982\u679c\u662fwb&#043;&#xff0c;\u5219\u8868\u793a\u4ee5\u4e8c\u8fdb\u5236&#xff08;\u8bfb\u5199&#xff09;\u65b9\u5f0f\u5199\u5165&#xff0c;\u53c2\u8003&#xff1a;fopen\u4e2dw w&#043; wb\u533a\u522b<\/p>\n<p>\u201crt\u201d\u3000\u3000\u3000\u3000\u3000\u3000\u53ea\u8bfb\u6253\u5f00\u4e00\u4e2a\u6587\u672c\u6587\u4ef6&#xff0c;\u53ea\u5141\u8bb8\u8bfb\u6570\u636e<\/p>\n<p>\u201cwt\u201d\u3000\u3000\u3000\u3000\u3000\u3000\u53ea\u5199\u6253\u5f00\u6216\u5efa\u7acb\u4e00\u4e2a\u6587\u672c\u6587\u4ef6&#xff0c;\u53ea\u5141\u8bb8\u5199\u6570\u636e<\/p>\n<p>\u201cat\u201d\u3000\u3000\u3000\u3000\u3000\u3000\u8ffd\u52a0\u6253\u5f00\u4e00\u4e2a\u6587\u672c\u6587\u4ef6&#xff0c;\u5e76\u5728\u6587\u4ef6\u672b\u5c3e\u5199\u6570\u636e<\/p>\n<p>\u201crb\u201d\u3000\u3000\u3000\u3000\u3000\u3000\u53ea\u8bfb\u6253\u5f00\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6&#xff0c;\u53ea\u5141\u8bb8\u8bfb\u6570\u636e<\/p>\n<p>\u201cwb\u201d\u3000\u3000\u3000\u3000 \u3000 \u53ea\u5199\u6253\u5f00\u6216\u5efa\u7acb\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6&#xff0c;\u53ea\u5141\u8bb8\u5199\u6570\u636e<\/p>\n<p>\u201cab\u201d \u3000\u3000\u3000\u3000 \u3000\u8ffd\u52a0\u6253\u5f00\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6&#xff0c;\u5e76\u5728\u6587\u4ef6\u672b\u5c3e\u5199\u6570\u636e<\/p>\n<p>\u201crt<span class=\"token operator\">&#043;<\/span>\u201d\u3000\u3000\u3000\u3000\u3000 \u8bfb\u5199\u6253\u5f00\u4e00\u4e2a\u6587\u672c\u6587\u4ef6&#xff0c;\u5141\u8bb8\u8bfb\u548c\u5199<\/p>\n<p>\u201cwt<span class=\"token operator\">&#043;<\/span>\u201d\u3000\u3000\u3000\u3000\u3000 \u8bfb\u5199\u6253\u5f00\u6216\u5efa\u7acb\u4e00\u4e2a\u6587\u672c\u6587\u4ef6&#xff0c;\u5141\u8bb8\u8bfb\u5199<\/p>\n<p>\u201cat<span class=\"token operator\">&#043;<\/span>\u201d\u3000\u3000\u3000\u3000\u3000\u8bfb\u5199\u6253\u5f00\u4e00\u4e2a\u6587\u672c\u6587\u4ef6&#xff0c;\u5141\u8bb8\u8bfb&#xff0c;\u6216\u5728\u6587\u4ef6\u672b\u8ffd\u52a0\u6570\u636e<\/p>\n<p>\u201crb<span class=\"token operator\">&#043;<\/span>\u201d\u3000\u3000\u3000\u3000\u3000 \u8bfb\u5199\u6253\u5f00\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6&#xff0c;\u5141\u8bb8\u8bfb\u548c\u5199<\/p>\n<p>\u201cwb<span class=\"token operator\">&#043;<\/span>\u201d\u3000\u3000\u3000\u3000\u3000 \u8bfb\u5199\u6253\u5f00\u6216\u5efa\u7acb\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6&#xff0c;\u5141\u8bb8\u8bfb\u548c\u5199<\/p>\n<p>\u201cab<span class=\"token operator\">&#043;<\/span>\u201d \u3000\u3000\u3000\u3000\u3000\u8bfb\u5199\u6253\u5f00\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6&#xff0c;\u5141\u8bb8\u8bfb&#xff0c;\u6216\u5728\u6587\u4ef6\u672b\u8ffd\u52a0\u6570\u636e<\/p>\n<p>\u5bf9\u4e8e\u6587\u4ef6\u4f7f\u7528\u65b9\u5f0f\u6709\u4ee5\u4e0b\u51e0\u70b9\u8bf4\u660e&#xff1a;<\/p>\n<p>\u3000\u3000<span class=\"token number\">1<\/span><span class=\"token punctuation\">.<\/span> \u6587\u4ef6\u4f7f\u7528\u65b9\u5f0f\u7531r<span class=\"token punctuation\">,<\/span>w<span class=\"token punctuation\">,<\/span>a<span class=\"token punctuation\">,<\/span>t<span class=\"token punctuation\">,<\/span>b&#xff0c;<span class=\"token operator\">&#043;<\/span>\u516d\u4e2a\u5b57\u7b26\u62fc\u6210&#xff0c;\u5404\u5b57\u7b26\u7684\u542b\u4e49\u662f&#xff1a;<\/p>\n<p>\u3000\u3000<span class=\"token function\">r<\/span><span class=\"token punctuation\">(<\/span>read<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> \u8bfb<\/p>\n<p>\u3000\u3000<span class=\"token function\">w<\/span><span class=\"token punctuation\">(<\/span>write<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> \u5199<\/p>\n<p>\u3000\u3000<span class=\"token function\">a<\/span><span class=\"token punctuation\">(<\/span>append<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> \u8ffd\u52a0<\/p>\n<p>\u3000\u3000<span class=\"token function\">t<\/span><span class=\"token punctuation\">(<\/span>text<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> \u6587\u672c\u6587\u4ef6&#xff0c;\u53ef\u7701\u7565\u4e0d\u5199<\/p>\n<p>\u3000\u3000<span class=\"token function\">b<\/span><span class=\"token punctuation\">(<\/span>banary<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> \u4e8c\u8fdb\u5236\u6587\u4ef6<\/p>\n<p>\u3000\u3000<span class=\"token operator\">&#043;<\/span><span class=\"token punctuation\">:<\/span> \u8bfb\u548c\u5199<\/p>\n<p>\u3000\u3000<span class=\"token number\">2<\/span><span class=\"token punctuation\">.<\/span> \u51e1\u7528\u201cr\u201d\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u65f6&#xff0c;\u8be5\u6587\u4ef6\u5fc5\u987b\u5df2\u7ecf\u5b58\u5728&#xff0c;\u4e14\u53ea\u80fd\u4ece\u8be5\u6587\u4ef6\u8bfb\u51fa\u3002<\/p>\n<p>\u3000\u3000<span class=\"token number\">3<\/span><span class=\"token punctuation\">.<\/span> \u7528\u201cw\u201d\u6253\u5f00\u7684\u6587\u4ef6\u53ea\u80fd\u5411\u8be5\u6587\u4ef6\u5199\u5165\u3002\u82e5\u6253\u5f00\u7684\u6587\u4ef6\u4e0d\u5b58\u5728&#xff0c;\u5219\u4ee5\u6307\u5b9a\u7684\u6587\u4ef6\u540d\u5efa\u7acb\u8be5\u6587\u4ef6&#xff0c;\u82e5\u6253\u5f00\u7684\u6587\u4ef6\u5df2\u7ecf\u5b58\u5728&#xff0c;\u5219\u5c06\u8be5\u6587\u4ef6\u5220\u53bb&#xff0c;\u91cd\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\u3002<\/p>\n<p>\u3000\u3000<span class=\"token number\">4<\/span><span class=\"token punctuation\">.<\/span> \u82e5\u8981\u5411\u4e00\u4e2a\u6587\u4ef6\u8ffd\u52a0\u65b0\u7684\u4fe1\u606f&#xff0c;\u7528\u201ca \u201d\u65b9\u5f0f\u6253\u5f00\u6587\u4ef6\u3002\u6587\u4ef6\u53ef\u5b58\u5728\u53ef\u4e0d\u5b58\u5728&#xff0c;\u82e5\u4e0d\u5b58\u5728\u4f1a\u81ea\u52a8\u521b\u5efa\u3002<\/p>\n<p>\u3000\u3000<span class=\"token number\">5<\/span><span class=\"token punctuation\">.<\/span> \u5728\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u65f6&#xff0c;\u5982\u679c\u51fa\u9519&#xff0c;fopen\u5c06\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6307\u9488\u503cNULL\u3002\u5728\u7a0b\u5e8f\u4e2d\u53ef\u4ee5\u7528\u8fd9\u4e00\u4fe1\u606f\u6765\u5224\u522b\u662f\u5426\u5b8c\u6210\u6253\u5f00\u6587\u4ef6\u7684\u5de5\u4f5c&#xff0c;\u5e76\u4f5c\u76f8\u5e94\u7684\u5904\u7406\u3002\u5982\u679c\u6210\u529f\u7684\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6<span class=\"token punctuation\">,<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\u51fd\u6570\u8fd4\u56de\u6587\u4ef6\u6307\u9488<span class=\"token punctuation\">,<\/span> \u5426\u5219\u8fd4\u56de\u7a7a\u6307\u9488<\/p>\n<p><span class=\"token punctuation\">(<\/span>NULL<span class=\"token punctuation\">)<\/span>\u3002\u7531\u6b64\u53ef\u5224\u65ad\u6587\u4ef6\u6253\u5f00\u662f\u5426\u6210\u529f\u3002 <span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\u51fd\u6570\u7528\u6765\u5173\u95ed\u4e00\u4e2a\u7531<span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\u51fd\u6570\u6253\u5f00\u7684\u6587\u4ef6 <span class=\"token punctuation\">,<\/span> \u5176\u8c03\u7528\u683c\u5f0f\u4e3a<span class=\"token punctuation\">:<\/span><\/p>\n<p>      <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> <span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>FILE <span class=\"token operator\">*<\/span>stream<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    \u8be5\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u6574\u578b\u6570\u3002\u5f53\u6587\u4ef6\u5173\u95ed\u6210\u529f\u65f6<span class=\"token punctuation\">,<\/span> \u8fd4\u56de<span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\u3000\u5426\u5219\u8fd4\u56de\u4e00\u4e2a\u975e\u96f6\u503c\u3002<\/p>\n<p>\u53ef\u4ee5\u6839\u636e\u51fd\u6570\u7684\u8fd4\u56de\u503c\u5224\u65ad\u6587\u4ef6\u662f\u5426\u5173\u95ed\u6210\u529f\u3002<\/p>\n<h2>9.\u5bf9\u4e8e\u5faa\u73af\u4f53\u7684\u6267\u884c\u6548\u7387,\u4e0b\u8ff0\u8bf4\u6cd5\u6b63\u786e\u7684\u662f&#xff08;)<\/h2>\n<p>ABCD<\/p>\n<p>A<span class=\"token punctuation\">.<\/span>\u5faa\u73af\u4f53\u5185\u5de5\u4f5c\u91cf\u6700\u5c0f\u5316<br \/>\nB<span class=\"token punctuation\">.<\/span>\u5728\u591a\u91cd\u5faa\u73af\u4e2d&#xff0c;\u5e94\u5c06\u6700\u5fd9\u7684\u5faa\u73af\u653e\u5728\u6700\u5185\u5c42<br \/>\nC<span class=\"token punctuation\">.<\/span>\u5c3d\u91cf\u51cf\u5c11\u5faa\u73af\u7684\u5d4c\u5957\u5c42\u6b21<br \/>\nD<span class=\"token punctuation\">.<\/span>\u907f\u514d\u5728\u5faa\u73af\u4f53\u5185\u505a\u65e0\u8c13\u7684\u5224\u65ad\u8bed\u53e5<span class=\"token punctuation\">,<\/span>\u5c06\u5faa\u73af\u8bed\u53e5\u7f6e\u4e8e\u5224\u8bfb\u8bed\u53e5\u7684\u4ee3\u7801\u5757\u4e4b\u4e2d<\/p>\n<h2>10. \u5173\u4e8eLinux\u5e93\u6587\u4ef6\u7684\u63cf\u8ff0\u6b63\u786e\u7684\u662f()<\/h2>\n<p>AB CD\u4e0d\u786e\u5b9a<\/p>\n<p>A\u5e93\u6587\u4ef6\u53ef\u5206\u4e3a\u52a8\u6001\u5e93\u548c\u9759\u6001\u5e93<br \/>\nB<span class=\"token punctuation\">.<\/span>\u4e0d\u540c\u7684\u8fdb\u7a0b\u53ef\u4ee5\u8bbf\u95ee\u540c\u4e00\u4e2a\u52a8\u6001\u5e93\u4e2d\u7684\u540c\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf<br \/>\nC<span class=\"token punctuation\">.<\/span>\u52a8\u6001\u5e93\u53ef\u4ee5\u91cd\u65b0\u7f16\u8bd1\u6210\u9759\u6001\u5e93<br \/>\nD<span class=\"token punctuation\">.<\/span>\u9759\u6001\u5e93\u53ef\u4ee5\u91cd\u65b0\u7f16\u8bd1\u6210\u52a8\u6001\u5e93<\/p>\n<ul>\n<li>ABD\u5427&#xff1b;B\u9009\u9879\u4e0d\u540c\u7684\u8fdb\u7a0b\u8bbf\u95ee\u52a8\u6001\u5e93\u5168\u5c40\u53d8\u91cf\u7684\u65f6\u5019\u4f1a\u62f7\u8d1d\u4e00\u4efd\u65b0\u7684&#xff0c;\u65e0\u6cd5\u6539\u53d8\u539f\u6765\u7684\u90a3\u4e2a&#xff1b;D\u9009\u9879\u6ca1\u641c\u5230&#xff0c;\u6211\u89c9\u5f97\u662f\u56e0\u4e3a\u9759\u6001\u5e93\u5305\u542b\u6e90\u4ee3\u7801&#xff0c;\u6240\u4ee5\u53ef\u4ee5\u91cd\u65b0\u7f16\u8bd1&#xff0c;\u800c\u52a8\u6001\u5e93\u4e0d\u5305\u542b\u6e90\u4ee3\u7801<\/li>\n<\/ul>\n<h2>\u4e8c\u3001\u5224\u65ad\u9898 (2*10 )<\/h2>\n<h2>1 Linux\u7cfb\u7edf\u4e2d,\u82e5\u6587\u4ef6\u7684\u6743\u9650\u4e3a644,\u5219\u8be5\u6587\u4ef6\u53ef\u4ee5\u88ab\u540c\u7ec4\u7684\u5176\u4ed6\u7528\u6237\u8bfb\u5199&#xff08;)<\/h2>\n<p>644 \u7b2c\u4e09\u4e2a\u6570\u5b574\u662f\u540c\u7ec4\u53ea\u8bfb<\/p>\n<p>B<span class=\"token punctuation\">.<\/span>\u9519<\/p>\n<h2>2 do-while\u8bed\u53e5\u6784\u6210\u7684\u5faa\u73af\u53ea\u80fd\u7528break\u8bed\u53e5\u9000\u51fa.()<\/h2>\n<p>\u8fd8\u6709goto \/return&#xff08;c\/cpp&#xff09;<\/p>\n<p>B<span class=\"token punctuation\">.<\/span>\u9519<\/p>\n<h2>3 \u5728C\u8bed\u8a00\u4e2d,\u8981\u6c42\u53c2\u52a0\u8fd0\u7b97\u7684\u6570\u5fc5\u987b\u662f\u6574\u6570\u7684\u8fd0\u7b97\u7b26\u662f%\u3002(&#xff09;<\/h2>\n<p>A<span class=\"token punctuation\">.<\/span>\u5bf9<\/p>\n<h2>4 \u5728\u51fd\u6570\u4f53\u5185\u7528malloc(x)\u5411\u8bf7\u5185\u5b58\u4f7f\u7528,\u5f53\u51fd\u6570\u88ab\u8c03\u7528\u5b8c\u540e,\u4f1a\u81ea\u52a8\u91ca\u653e\u6240\u7533\u8bf7\u7684\u5185\u5b58\u3002<\/h2>\n<p>malloc\u5206\u914d\u7684\u662f\u5806\u5185\u5b58&#xff0c;\u7528\u5b8c\u9700\u8981free<\/p>\n<p>B<span class=\"token punctuation\">.<\/span>\u9519<\/p>\n<h2>5 CMOS\u7535\u5e73\u53ef\u4ee5\u76f4\u63a5\u9a71\u52a8TTL\u7535\u8def,\u800cTTL\u7535\u5e73\u4e0d\u53ef\u4ee5\u76f4\u63a5\u9a71\u52a8CMOS\u7535\u8def<\/h2>\n<p>A<span class=\"token punctuation\">.<\/span>\u5bf9<\/p>\n<p>\u53ea\u8981\u5de5\u4f5c\u7535\u6e90\u7535\u538b\u4e3a5V&#xff0c;\u5c31\u53ef\u4ee5\u7528CMOS\u95e8\u9a71\u52a8TTL\u95e8\u3002\u56e0\u4e3aTTL\u7535\u6e90\u7535\u538b\u4e3a5V&#xff0c;CMOS\u7535\u6e90\u7535\u538b\u4e3a3V ~ 18V\u3002CMOS\u7535\u6e90\u7535\u538b\u4e3a5V\u662f&#xff0c;\u8f93\u51fa\u5c31\u662fTTL\u7535\u5e73\u3002<\/p>\n<p>\u5728\u540c\u68375V\u7535\u6e90\u7535\u538b\u60c5\u51b5\u4e0b&#xff0c;COMS\u7535\u8def\u53ef\u4ee5\u76f4\u63a5\u9a71\u52a8TTL&#xff0c;\u56e0\u4e3aCMOS\u7684\u8f93\u51fa\u9ad8\u7535\u5e73\u5927\u4e8e2.0V,\u8f93\u51fa\u4f4e\u7535\u5e73\u5c0f\u4e8e0.8V&#xff1b;\u800cTTL\u7535\u8def\u5219\u4e0d\u80fd\u76f4\u63a5\u9a71\u52a8CMOS\u7535\u8def&#xff0c;TTL\u7684\u8f93\u51fa\u9ad8\u7535\u5e73\u4e3a\u5927\u4e8e2.4V&#xff0c;\u5982\u679c\u843d\u57282.4V&#xff5e;3.5V\u4e4b\u95f4&#xff0c;\u5219CMOS\u7535\u8def\u5c31\u4e0d\u80fd\u68c0\u6d4b\u5230\u9ad8\u7535\u5e73&#xff0c;\u4f4e\u7535\u5e73\u5c0f\u4e8e0.4V\u6ee1\u8db3\u8981\u6c42&#xff0c;\u6240\u4ee5\u5728TTL\u7535\u8def\u9a71\u52a8COMS\u7535\u8def\u65f6\u9700\u8981\u52a0\u4e0a\u62c9\u7535\u963b\u3002\u5982\u679c\u51fa\u73b0\u4e0d\u540c\u7535\u538b\u7535\u6e90\u7684\u60c5\u51b5&#xff0c;\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4e0a\u9762\u7684\u65b9\u6cd5\u8fdb\u884c\u5224\u65ad\u3002<\/p>\n<h2>6 LCD\u867d\u7136\u53ef\u4ee5\u663e\u793a\u5f88\u7eda\u4e3d\u7684\u56fe\u5f62&#xff0c;\u4f46\u5b83\u4e0d\u53ef\u4ee5\u81ea\u53d1\u5149,\u9700\u8981\u501f\u52a9\u5916\u754c\u5149\u6e90\u3002<\/h2>\n<h2>7 \u6709\u4ee5\u4e0b\u7a0b\u5e8f\u6bb5int k&#061;0 while(k&#061;1)k&#043; &#043;; while\u5faa\u73af\u6267\u884c\u7684\u6b21\u6570\u662f\u65e0\u9650\u6b21<\/h2>\n<h2>8 \u8bbe\u5b9a #define defS struct s * , typedef struct s * tpfPS; \u5219defPS p1, p2; tpfPS p3, p4;\u5176\u4e2dp1,p2,p3,p4\u90fd\u4e3a\u7ed3\u6784\u4f53\u6307\u9488<\/h2>\n<h2>9 linux\u5e73\u53f0(platform)\u8bbe\u5907\u9a71\u52a8\u5fc5\u987b\u63d0\u4f9bprobe\u548cremove\u65b9\u6cd5\u3002<\/h2>\n<h2>\u4e09\u3001\u586b\u7a7a\u9898 &#xff08;4*5&#xff09;<\/h2>\n<h2>1 \u7ed9128\u4e2a\u5b57\u7b26\u7f16\u7801,\u81f3\u5c11\u9700\u8981\u4f4d\u4e8c\u8fdb\u5236\u6570\u3002<\/h2>\n<p><span class=\"token number\">7<\/span><br \/>\nn\u4f4d\u4e8c\u8fdb\u5236\u53ef\u4ee5\u7f16\u7801<span class=\"token number\">2<\/span><span class=\"token operator\">^<\/span>n\u4e2a\u5b57\u7b26&#xff0c;<span class=\"token number\">2<\/span><span class=\"token operator\">^<\/span><span class=\"token number\">7<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">128<\/span><\/p>\n<h2>2 \u57fa\u672c\u7684\u4e09\u79cd\u903b\u8f91\u8fd0\u7b97\u662f<\/h2>\n<p>\u4e0e \u6216 \u975e<\/p>\n<h2>3 uchar a[] &#061; {0x60,0x70,0x80, 0x90, 0x00, 0x10, 0x20, 0x30,040,0&#215;50}; uchar len strlen(a); \u5219 <font color=\"green\">len &#061; 4 <\/font><\/h2>\n<p>unsigned <span class=\"token keyword\">char<\/span> a<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token number\">0x60<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0x70<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0x80<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x90<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x00<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x20<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0x30<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0x40<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0x50<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\nunsigned <span class=\"token class-name\"><span class=\"token keyword\">char<\/span><\/span> len <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">strlen<\/span><span class=\"token punctuation\">(<\/span>a<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nunsigned <span class=\"token class-name\"><span class=\"token keyword\">char<\/span><\/span> len2 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">a<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;strlen(a) &#061; %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 4 \u5230 0x00\u505c\u6b62, \u2018\\\\0\u2019 &#061;&#061; 0 &#061;&#061; 0x00<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;sizeof(a) &#061; %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> len2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ 10&#xff0c;\u5171\u67099\u5404\u5143\u7d20 \u548c \u4e00\u4e2a\u7ed3\u675f\u7b26&#xff0c;\u517110\u4e2a<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250812032957-689ab5359a853.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u3010C\u8bed\u8a00\u3011\u2018\\\\0\u2019\u3001\u20180\u2019\u3001\u2019 &#039;\u3001\u201c0\u201d\u30010\u7684\u533a\u522b\u8be6\u89e3<\/p>\n<h2>4 \u5199\u4e00\u4e2a&#034;\u6807\u51c6&#034;\u5b8fMIN,\u8fd9\u4e2a\u5b8f\u8f93\u5165\u4e24\u4e2a\u53c2\u6570\u5e76\u8fd4\u56de\u8f83\u5c0f\u7684\u4e00\u4e2a<\/h2>\n<p><span class=\"token preprocessor property\">#<\/span><span class=\"token return-type class-name\">define<\/span> <span class=\"token function\">MIN<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">,<\/span> y<span class=\"token punctuation\">)<\/span>  <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token punctuation\">(<\/span>y<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">?<\/span> <span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">(<\/span>y<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h2>5 32\u4f4d\u7cfb\u7edf\u4e0b&#xff0c;C&#043;&#043;\u7a0b\u5e8f&#xff0c;char str[] &#061; \u201chello world\u201d;sizeof(str) &#061;<\/h2>\n<p><span class=\"token number\">12<\/span><\/p>\n<h2>\u56db\u3001\u7b80\u7b54\u9898&#xff08;10*3&#xff09;<\/h2>\n<h2>1.\u5982\u4f55\u5f15\u7528\u4e00\u4e2a\u5df2\u7ecf\u5b9a\u4e49\u8fc7\u7684\u5168\u5c40\u53d8\u91cf?<\/h2>\n<p>\u5168\u5c40\u53d8\u91cf\u58f0\u660e\u5728\u6240\u6709\u51fd\u6570\u4f53\u5916\u90e8\u3002<\/p>\n<ul>\n<li>\u540c\u4e00\u6e90\u6587\u4ef6\u5185\u53ef\u4ee5\u76f4\u63a5\u5f15\u7528\u3002<\/li>\n<li>\u5176\u4ed6\u6e90\u6587\u4ef6\u5f15\u7528\u524d\u5fc5\u987b\u5f15\u5165\u8be5\u5168\u5c40\u53d8\u91cf\u58f0\u660e\u6240\u5728\u7684\u5934\u6587\u4ef6&#xff0c;\u6216\u4f7f\u7528extern\u5173\u952e\u5b57\u58f0\u660e&#xff0c;\u8868\u793a\u8be5\u5168\u5c40\u53d8\u91cf\u7684\u5b9a\u4e49\u4f4d\u4e8e\u5176\u4ed6\u6e90\u6587\u4ef6\u4e2d\u3002<\/li>\n<\/ul>\n<h2>2 \u4ec0\u4e48\u662f\u8fdb\u7a0b\u548c\u7ebf\u7a0b&#xff1f;\u6709\u4f55\u533a\u522b&#xff1f;<\/h2>\n<ul>\n<li>\n<p>\u8fdb\u7a0b&#xff1a;\u64cd\u4f5c\u7cfb\u7edf\u8d44\u6e90\u5206\u914d\u7684\u57fa\u672c\u5355\u4f4d<\/p>\n<\/li>\n<li>\n<p>\u7ebf\u7a0b&#xff1a;\u7ebf\u7a0b\u662f\u5904\u7406\u5668\u4efb\u52a1\u8c03\u5ea6\u548c\u6267\u884c\u7684\u57fa\u672c\u5355\u4f4d<\/p>\n<\/li>\n<li>\n<p>\u533a\u522b&#xff1a;&#xff08;1&#xff09;\u8fdb\u7a0b\u4e4b\u95f4\u76f8\u4e92\u72ec\u7acb&#xff0c;\u65e0\u6cd5\u5171\u4eab\u8d44\u6e90&#xff1b;\u540c\u4e00\u4e2a\u8fdb\u7a0b\u521b\u5efa\u7684\u7ebf\u7a0b\u80fd\u591f\u5171\u4eab\u8fdb\u7a0b\u7684\u90e8\u5206\u8d44\u6e90&#xff0c;\u5982\u4ee3\u7801\u6bb5\u3001\u5168\u5c40&#xff08;\u9759\u6001&#xff09;\u6570\u636e\u3001\u5806\u533a\u3002&#xff08;2&#xff09;\u8fdb\u7a0b\u5d29\u6e83\u4e0d\u4f1a\u5f71\u54cd\u5176\u4ed6\u8fdb\u7a0b&#xff1b;\u7ebf\u7a0b\u5d29\u6e83\u4f1a\u5bfc\u81f4\u8be5\u8fdb\u7a0b\u4e0b\u6240\u6709\u7ebf\u7a0b\u5d29\u6e83\u3002&#xff08;3&#xff09;\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u6709\u72ec\u7acb\u7684\u4ee3\u7801\u548c\u6570\u636e\u7a7a\u95f4&#xff08;\u7a0b\u5e8f\u4e0a\u4e0b\u6587&#xff09;&#xff0c;\u7a0b\u5e8f\u4e4b\u95f4\u7684\u5207\u6362\u4f1a\u6709\u8f83\u5927\u7684\u5f00\u9500&#xff1b;\u7ebf\u7a0b\u53ef\u4ee5\u770b\u505a\u8f7b\u91cf\u7ea7\u7684\u8fdb\u7a0b&#xff0c;\u540c\u4e00\u7c7b\u7ebf\u7a0b\u5171\u4eab\u4ee3\u7801\u548c\u6570\u636e\u7a7a\u95f4&#xff0c;\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u6709\u81ea\u5df1\u72ec\u7acb\u7684\u8fd0\u884c\u6808\u548c\u7a0b\u5e8f\u8ba1\u6570\u5668&#xff08;PC&#xff09;&#xff0c;\u7ebf\u7a0b\u4e4b\u95f4\u5207\u6362\u7684\u5f00\u9500\u5c0f\u3002<\/p>\n<\/li>\n<li>\n<p>\u8054\u7cfb&#xff1a;\u7ebf\u7a0b\u5c5e\u4e8e\u8fdb\u7a0b&#xff0c;\u662f\u8fdb\u7a0b\u4efb\u52a1\u5b9e\u9645\u7684\u6267\u884c\u8005&#xff0c;\u8fdb\u7a0b\u4e2d\u7684\u7ebf\u7a0b\u5171\u4eab\u8fdb\u7a0b\u7684\u90e8\u5206\u8d44\u6e90\u3002<\/p>\n<\/li>\n<li>\n<p>Linux\u4e2d\u6ca1\u6709\u771f\u6b63\u7684\u7ebf\u7a0b&#xff0c;\u7ebf\u7a0b &#061;&#061; \u8f7b\u91cf\u7ea7\u8fdb\u7a0b&#xff08;Light Weight Process&#xff0c;LWP&#xff09;<\/p>\n<\/li>\n<\/ul>\n<h2>3 \u7b80\u8ff0\u5c315V\u7cfb\u7edf\u800c\u8a00TTL\u7535\u5e73\u548cCMOS\u7535\u5e73\u5b9a\u4e49\u662f\u4ec0\u4e48?\u4e8c\u8005\u53ef\u4ee5\u4e92\u76f8\u9a71\u52a8\u5417?(10\u5206)<\/h2>\n<h3>1 TTL\u7535\u8def<\/h3>\n<p>TTL\u96c6\u6210\u7535\u8def\u7684\u4e3b\u8981\u578b\u5f0f\u4e3a\u6676\u4f53\u7ba1&#xff0d;\u6676\u4f53\u7ba1\u903b\u8f91\u95e8&#xff08;transistor-transistor logic gate&#xff09;&#xff0c;TTL\u5927\u90e8\u5206\u90fd\u91c7\u75285V\u7535\u6e90\u3002<\/p>\n<h4>TTL\u7535\u5e73<\/h4>\n<p>\u8f93\u51fa\u9ad8\u7535\u5e73&gt;2.4V,\u8f93\u51fa\u4f4e\u7535\u5e73&lt;0.4V\u3002\u5728\u5ba4\u6e29\u4e0b&#xff0c;\u4e00\u822c\u8f93\u51fa\u9ad8\u7535\u5e73\u662f3.5V&#xff0c;\u8f93\u51fa\u4f4e\u7535\u5e73\u662f0.2V\u3002\u6700\u5c0f\u8f93\u5165\u9ad8\u7535\u5e73\u548c\u4f4e\u7535\u5e73&#xff1a;\u8f93\u5165\u9ad8\u7535\u5e73&gt;&#061;2.0V&#xff0c;\u8f93\u5165\u4f4e\u7535\u5e73&lt;&#061;0.8V&#xff0c;\u566a\u58f0\u5bb9\u9650\u662f0.4V\u3002<\/p>\n<ul>\n<li>\n<p>1.\u8f93\u51fa\u9ad8\u7535\u5e73Uoh\u548c\u8f93\u51fa\u4f4e\u7535\u5e73Uol<\/p>\n<p>   Uoh\u22652.4V,Uol\u22640.4V\n <\/li>\n<li>\n<p>2.\u8f93\u5165\u9ad8\u7535\u5e73\u548c\u8f93\u5165\u4f4e\u7535\u5e73<\/p>\n<p>   Uih\u22652.0V&#xff0c;Uil\u22640.8V\n <\/li>\n<\/ul>\n<h3>2\u3001 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