{"id":101,"date":"2026-03-18T02:51:32","date_gmt":"2026-03-17T18:51:32","guid":{"rendered":"https:\/\/www.caldm.cn\/?p=101"},"modified":"2026-03-18T02:51:32","modified_gmt":"2026-03-17T18:51:32","slug":"c8-%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.caldm.cn\/index.php\/2026\/03\/18\/c8-%e5%87%bd%e6%95%b0\/","title":{"rendered":"C8 \u51fd\u6570"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1. \u51fd\u6570<\/h2>\n\n\n\n<p><strong>\u51fd\u6570<\/strong>\uff08<em>function<\/em>\uff09\u662f\u5b8c\u6210\u7279\u5b9a\u4efb\u52a1\u7684\u72ec\u7acb\u7a0b\u5e8f\u4ee3\u7801\u5355\u5143\u3002\u8bed\u6cd5\u7ed3\u6784\u5b9a\u4e49\u4e86\u51fd\u6570\u7684\u7ed3\u6784\u548c\u4f7f\u7528\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p><strong>\u51fd\u6570\u7684\u529f\u80fd<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6267\u884c\u67d0\u4e9b\u52a8\u4f5c\u3002\u6bd4\u5982<code>printf()<\/code>\u628a\u6570\u636e\u6253\u5370\u5728\u5c4f\u5e55\u4e0a<\/li>\n\n\n\n<li>\u8fd4\u56de\u503c\u4f9b\u5176\u4ed6\u7a0b\u5e8f\u4f7f\u7528\u3002\u6bd4\u5982<code>strlen()<\/code>\u8fd4\u56de\u5b57\u7b26\u957f\u5ea6<\/li>\n<\/ul>\n\n\n\n<p><strong>\u4e3a\u4ec0\u4e48\u4f7f\u7528\u51fd\u6570<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u907f\u514d\u7f16\u5199\u91cd\u590d\u4ee3\u7801<\/li>\n\n\n\n<li>\u8ba9\u7a0b\u5e8f\u66f4\u52a0\u6a21\u5757\u5316\uff0c\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">1.1 \u521b\u5efa\u51fd\u6570<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;stdio.h&gt;\n\nvoid starbar(void);\n\nint main() {\n    starbar();\n    printf(\"GIGATHINK, INC\\n101 Megabuck Plaza\\nMegapolis, CA 94904\\n\");\n    starbar();\n    return 0;\n}\n\nvoid starbar(void) {\n    int count;\n    for (count = 0; count &lt; 40; count++) {\n        putchar('*');\n    }\n    putchar('\\n');\n}\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>void starbar(void);<\/code>\u662f<strong>\u51fd\u6570\u539f\u578b<\/strong>\uff08<em>function prototype<\/em>\uff09\u544a\u8bc9\u7f16\u8bd1\u5668\u51fd\u6570\u7684\u7c7b\u578b\u3002<\/li>\n\n\n\n<li><code>starbar();<\/code>\u662f<strong>\u51fd\u6570\u8c03\u7528<\/strong>\uff08<em>function call<\/em>\uff09\u8868\u660e\u5728\u6b64\u5904\u6267\u884c\u51fd\u6570\u3002<\/li>\n\n\n\n<li><code>void starbar(void) {...}<\/code>\u662f<strong>\u51fd\u6570\u5b9a\u4e49<\/strong>\uff08<em>function definition<\/em>\uff09\u6307\u5b9a\u51fd\u6570\u8981\u505a\u4ec0\u4e48\u3002<\/li>\n\n\n\n<li>\u51fd\u6570\u539f\u578b\u6307\u660e\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u548c\u51fd\u6570\u63a5\u6536\u7684\u53c2\u6570\u7c7b\u578b\uff0c\u8fd9\u4e9b\u4fe1\u606f\u88ab\u79f0\u4e3a\u8be5\u51fd\u6570\u7684<strong>\u7b7e\u540d<\/strong>\uff08<em>signature<\/em>\uff09\u3002\u5bf9\u4e8e<code>void starbar(void);<\/code>\uff0c\u5176\u7b7e\u540d\u662f\u8be5\u51fd\u6570\u4e0d\u8fd4\u56de\u503c\u4e5f\u4e0d\u63a5\u6536\u53c2\u6570\u3002<\/li>\n\n\n\n<li>\u51fd\u6570\u539f\u578b\u53ef\u4ee5\u5199\u5728\u5176\u4ed6\u5730\u65b9\uff0c\u4f46\u5fc5\u987b\u5728\u51fd\u6570\u8c03\u7528\u6216\u51fd\u6570\u5b9a\u4e49\u4e4b\u524d\u3002<\/li>\n\n\n\n<li><code>starbar()<\/code>\u51fd\u6570\u4e2d\u7684\u53d8\u91cf<code>count<\/code>\u662f\u5c40\u90e8\u53d8\u91cf\uff0c\u8be5\u53d8\u91cf\u53ea\u5c5e\u4e8e<code>starbar()<\/code>\u51fd\u6570\u3002\u53ef\u4ee5\u5728\u5176\u4ed6\u5730\u65b9\u4f7f\u7528count\u4f5c\u4e3a\u53d8\u91cf\u540d\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">1.2 \u51fd\u6570\u53c2\u6570<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;stdio.h&gt;\n#include &lt;string.h&gt;\n\nvoid show_n_char(int, char);\n\nvoid show_n_char(int n, char ch) {\n    for (int i = 0; i &lt; n; i++) {\n        putchar(ch);\n    }\n}\n\nint main() {\n    show_n_char(40, '*');\n    putchar('\\n');\n    show_n_char((40 - strlen(\"GIGATHINK, INC\")) \/ 2, ' ');\n    printf(\"GIGATHINK, INC\\n\");\n    show_n_char((40 - strlen(\"G101 Megabuck Plaza\")) \/ 2, ' ');\n    printf(\"101 Megabuck Plaza\\n\");\n    show_n_char((40 - strlen(\"Megapolis, CA 94904\")) \/ 2, ' ');\n    printf(\"Megapolis, CA 94904\\n\");\n    show_n_char(40, '*');\n    return 0;\n}\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">1.2.1 \u5b9a\u4e49\u5e26\u5f62\u5f0f\u53c2\u6570\u7684\u51fd\u6570<\/h4>\n\n\n\n<p>\u51fd\u6570\u5934\uff1a<code>void show_n_char(int n, char ch)<\/code>\uff0c\u8be5\u884c\u544a\u8bc9\u7f16\u8bd1\u5668<code>show_n_char()<\/code>\u4f7f\u7528\u4e24\u4e2a\u53c2\u6570<code>int<\/code>\u7c7b\u578b\u7684<code>n<\/code>\u548c<code>char<\/code>\u7c7b\u578b\u7684<code>ch<\/code>\uff0c\u8fd9\u4e24\u4e2a\u53c2\u6570\u662f\u5f62\u5f0f\u53c2\u6570\uff0c\u7b80\u79f0\u5f62\u53c2\uff0c\u5f62\u53c2\u5c5e\u4e8e\u5c40\u90e8\u53d8\u91cf\uff0c\u8fd9\u91cc\u7684<code>n<\/code>\u548c<code>ch<\/code>\u5f52<code>show_n_char()<\/code>\u51fd\u6570\u79c1\u6709\u3002<\/p>\n\n\n\n<p>\u26a0\ufe0f<strong>\u6ce8\u610f<\/strong>\uff1a\u6bcf\u4e2a\u5f62\u53c2\u90fd\u5fc5\u987b\u58f0\u660e\u7c7b\u578b\uff0c\u56e0\u6b64\u4e0d\u80fd\u50cf\u58f0\u660e\u53d8\u91cf\u4e00\u6837\u4f7f\u7528\u540c\u4e00\u7c7b\u578b\u7684\u53d8\u91cf\u5217\u8868\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void func(int x, y, z)         \/\/ \u65e0\u6548\u7684\u51fd\u6570\u5934\nvoid func(int x, int y, int z) \/\/ \u6709\u6548\u7684\u51fd\u6570\u5934\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">1.2.2 \u58f0\u660e\u5e26\u5f62\u5f0f\u53c2\u6570\u51fd\u6570\u7684\u539f\u578b<\/h4>\n\n\n\n<p>\u5f53\u51fd\u6570\u63a5\u53d7\u53c2\u6570\u65f6\uff0c\u51fd\u6570\u539f\u578b\u7528\u9017\u53f7\u5206\u9694\u7684\u5217\u8868\u6307\u660e\u53c2\u6570\u7684\u6570\u91cf\u548c\u7c7b\u578b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void show_n_char(int, char);\n<\/code><\/pre>\n\n\n\n<p>\u26a0\ufe0f<strong>\u6ce8\u610f<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u51fd\u6570\u539f\u578b\u4e2d\u53c2\u6570\u540d\u4e3a\u53ef\u9009\u3002<\/li>\n\n\n\n<li>\u51fd\u6570\u539f\u578b\u4e2d\u5e76\u6ca1\u6709\u5b9e\u9645\u521b\u5efa\u53d8\u91cf\uff0c\u5176\u4e2d\u7684\u53d8\u91cf\u7c7b\u578b\u4ec5\u4ee3\u8868\u4e00\u4e2a\u5bf9\u5e94\u7c7b\u578b\u7684\u53d8\u91cf\u800c\u5df2\u3002<\/li>\n\n\n\n<li><code>void func();<\/code>\u7684\u5199\u6cd5\u662fANSI C\u4e4b\u524d\u7684\uff0c<code>void func(void);<\/code>\u624d\u662f\u6807\u51c6\u7684\uff0c\u5e94\u5c3d\u53ef\u80fd\u5730\u4f7f\u7528\u6807\u51c6\u7684\u5199\u6cd5\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">1.2.3 \u8c03\u7528\u5e26\u5b9e\u9645\u53c2\u6570\u7684\u51fd\u6570<\/h4>\n\n\n\n<p>\u5728\u51fd\u6570\u8c03\u7528\u4e2d\uff0c<strong>\u5b9e\u9645\u53c2\u6570<\/strong>\uff08<em>actual argument<\/em>\uff09\uff0c\u7b80\u79f0\u5b9e\u53c2\uff0c\u5b9e\u9645\u53c2\u6570\u63d0\u4f9b\u4e86\u53c2\u6570\u7684\u503c\u3002<\/p>\n\n\n\n<p>\u5f62\u5f0f\u53c2\u6570\u662f<strong>\u88ab\u8c03\u51fd\u6570<\/strong>\uff08<em>called function<\/em>\uff09\u4e2d\u7684\u53d8\u91cf\uff0c\u5b9e\u9645\u53c2\u6570\u662f<strong>\u4e3b\u8c03\u51fd\u6570<\/strong>\uff08<em>call function<\/em>\uff09\u8d4b\u7ed9\u88ab\u8c03\u51fd\u6570\u7684\u5177\u4f53\u503c\u3002<\/p>\n\n\n\n<p>\u5b9e\u9645\u53c2\u6570\u53ef\u4ee5\u5e38\u91cf\u3001\u53d8\u91cf\u6216\u8868\u8fbe\u5f0f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1.3 \u4ece\u51fd\u6570\u4e2d\u8fd4\u56de\u503c\uff1a<code>return<\/code><\/h3>\n\n\n\n<p>\u51fd\u6570\u7684\u8fd4\u56de\u503c\u53ef\u4ee5\u628a\u4fe1\u606f\u4ece\u88ab\u8c03\u51fd\u6570\u4f20\u56de\u4e3b\u8c03\u51fd\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u793a\u4f8b\u51fd\u6570\uff1a\u8fd4\u56de\u4e24\u4e2a\u503c\u4e2d\u7684\u8f83\u5c0f\u8005\n\n#include &lt;stdio.h&gt;\n\nint imin(int, int);\n\nint main() {\n    printf(\"%d\\n\", imin(3, 4));\n    printf(\"%d\\n\", imin(10, 4));\n    return 0;\n}\n\nint imin(int a, int b) {\n    return a &lt; b ? a : b;\n}\n<\/code><\/pre>\n\n\n\n<p>\u5173\u952e\u5b57<code>return<\/code>\u540e\u9762\u7684\u8868\u8fbe\u5f0f\u5c31\u662f\u51fd\u6570\u7684\u8fd4\u56de\u503c\uff0c\u8fd4\u56de\u503c\u7684\u7c7b\u578b\u5e94\u4e0e\u51fd\u6570\u539f\u578b\u4e2d\u7684\u7c7b\u578b\u76f8\u540c\uff0c\u4e0d\u76f8\u540c\u65f6\u4f1a\u8fdb\u884c\u81ea\u52a8\u7c7b\u578b\u8f6c\u6362\uff0c\u5982\u679c\u8f6c\u6362\u5931\u8d25\uff0c\u51fd\u6570\u5c31\u65e0\u6cd5\u6210\u529f\u8fd0\u884c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1.4 \u51fd\u6570\u7c7b\u578b<\/h3>\n\n\n\n<p>\u58f0\u660e\u51fd\u6570\u65f6\u5fc5\u987b\u58f0\u660e\u51fd\u6570\u7c7b\u578b\uff0c\u5e26\u8fd4\u56de\u503c\u7684\u51fd\u6570\u7c7b\u578b\uff0c\u5e94\u4e0e\u8fd4\u56de\u503c\u7c7b\u578b\u76f8\u540c\uff0c\u6ca1\u6709\u8fd4\u56de\u503c\u7684\u51fd\u6570\u5e94\u58f0\u660e\u4e3a<code>void<\/code>\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>\u65e7\u7248\u672c\u7684C\u7f16\u8bd1\u5668\u4f1a\u5047\u5b9a\u51fd\u6570\u7684\u7c7b\u578b\u662f<code>int<\/code>\uff0c\u800cC99\u6807\u51c6\u4e0d\u518d\u652f\u6301<code>int<\/code>\u7c7b\u578b\u51fd\u6570\u8fd9\u79cd\u5047\u5b9a\u8bbe\u7f6e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. ANSI C\u51fd\u6570\u539f\u578b<\/h2>\n\n\n\n<p>\u5728ANSI C\u6807\u51c6\u4e4b\u524d\uff0c\u58f0\u660e\u51fd\u6570\u53ea\u9700\u8981\u58f0\u660e\u51fd\u6570\u7684\u7c7b\u578b\uff0c\u4e0d\u7528\u58f0\u660e\u53c2\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;stdio.h&gt;\n\nint imax();\n\nint main() {\n    printf(\"The maxinum of %d and %d is %d.\\n\", 3, 5, imax(3));\n    printf(\"The maxinum of %d and %d is %d.\\n\", 3, 5, imax(3.0f, 5.0f));\n    return 0;\n}\n\nint imax()\nint n, m;\n{\n    return n &gt; m ? n : m;\n}\n<\/code><\/pre>\n\n\n\n<p>\u5bf9\u4e8ePC\u548cVAX\u6765\u8bf4\uff0c\u4e3b\u8c03\u51fd\u6570\u4f1a\u628a\u5b83\u7684\u53c2\u6570\u5b58\u5728\u88ab\u79f0\u4e3a\u201c<strong>\u6808<\/strong>\uff08<em>stack<\/em>\uff09\u201d\u7684\u4e34\u65f6\u5b58\u50a8\u533a\u3002<\/p>\n\n\n\n<p>\u5728\u7b2c\u4e00\u6b21\u8c03\u7528<code>imax()<\/code>\u51fd\u6570\u65f6\uff0c\u53ea\u4f20\u9012\u4e86\u4e00\u4e2a\u53c2\u6570\uff0c\u4e5f\u5c31\u662f\u6808\u4e2d\u53ea\u653e\u4e86\u4e00\u4e2a\u6570\u636e\uff0c\u90a3\u4e48\u51fd\u6570\u4f1a\u628a\u6070\u597d\u653e\u5728\u7b2c\u4e00\u4e2a\u53c2\u6570\u65c1\u7684\u503c\u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u3002<\/p>\n\n\n\n<p>\u5728\u7b2c\u4e8c\u6b21\u8c03\u7528\u65f6\uff0c\u4f20\u5165\u4e86\u4e24\u4e2a\u6d6e\u70b9\u503c\uff0c\u4e5f\u5c31\u662f\u6808\u4e2d\u5b58\u653e\u4e86128\u4f4d\u7684\u6570\u636e\uff0c\u4f46\u662f\u5f62\u53c2\u5b9a\u4e49\u7684\u662f\u4e24\u4e2a<code>int<\/code>\u7c7b\u578b\u603b\u957f\u5ea6\u53ea\u670964\u4f4d\uff0c\u56e0\u6b64\u7a0b\u5e8f\u5b9e\u9645\u4e0a\u662f\u5c06\u7b2c\u4e00\u4e2a\u5b9e\u53c2\u62c6\u5f00\uff0c\u7b2c\u4e8c\u4e2a\u5b9e\u53c2\u6839\u672c\u6ca1\u6709\u8bfb\u53d6\u5230\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 ANSI\u7684\u89e3\u51b3\u65b9\u6848<\/h3>\n\n\n\n<p>ANSI C\u7684\u6807\u51c6\u8981\u6c42\u662f\u4f7f\u7528\u51fd\u6570\u539f\u578b\uff0c\u4e5f\u5c31\u662f\u5728\u51fd\u6570\u58f0\u660e\u65f6\u8fd8\u8981\u58f0\u660e\u53d8\u91cf\u7684\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u51fd\u6570\u539f\u578b\u540e\uff0c\u5f53\u5b9e\u53c2\u6570\u91cf\u4e0e\u5f62\u53c2\u6570\u91cf\u4e0d\u5bf9\u65f6\uff0c\u7f16\u8bd1\u5668\u4f1a\u7ed9\u51fa\u8b66\u544a\uff0c\u5f53\u7c7b\u578b\u4e0d\u540c\u65f6\uff0c\u4f1a\u53d1\u751f\u81ea\u52a8\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 \u65e0\u53c2\u6570\u548c\u672a\u6307\u5b9a\u53c2\u6570<\/h3>\n\n\n\n<p>\u652f\u6301ANSI C\u7f16\u8bd1\u5668\u4f1a\u5047\u5b9a\u7528\u6237\u6ca1\u6709\u7528\u51fd\u6570\u539f\u578b\u6765\u58f0\u660e\u51fd\u6570\uff0c\u5b83\u5c06\u4e0d\u4f1a\u68c0\u67e5\u53c2\u6570\u3002\u4e3a\u4e86\u8868\u660e\u51fd\u6570\u786e\u5b9e\u6ca1\u6709\u53c2\u6570\uff0c\u5e94\u5728\u5706\u62ec\u53f7\u4e2d\u4f7f\u7528<code>void<\/code>\u5173\u952e\u5b57\u3002<\/p>\n\n\n\n<p>\u5f53\u51fd\u6570\u7684\u53c2\u6570\u6ca1\u6709\u56fa\u5b9a\u6570\u91cf\u548c\u7c7b\u578b\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>...<\/code>\u8868\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int func(int a, char ch, ...) {\n    \u2026\u2026\n}\n<\/code><\/pre>\n\n\n\n<p>\u26a0\ufe0f<strong>\u6ce8\u610f<\/strong>\uff1a\u6ca1\u6709\u56fa\u5b9a\u7c7b\u578b\u4f46\u4e0d\u56fa\u5b9a\u6570\u91cf\u7684\u8868\u793a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u9012\u5f52<\/h2>\n\n\n\n<p><strong>\u9012\u5f52<\/strong>\uff08<em>recursion<\/em>\uff09 \u662f\u6307\u51fd\u6570\u81ea\u5df1\u8c03\u7528\u81ea\u5df1\u7684\u8fc7\u7a0b\u3002\u81ea\u5df1\u8c03\u7528\u81ea\u5df1\u7684\u51fd\u6570\u53eb\u4f5c\u9012\u5f52\u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u9012\u5f52\u51fd\u6570\u5fc5\u987b\u5305\u542b\u9012\u5f52\u51fa\u53e3\uff0c\u4e5f\u5c31\u662f\u7ed3\u675f\u9012\u5f52\u7684\u6761\u4ef6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 \u5c3e\u9012\u5f52<\/h3>\n\n\n\n<p><strong>\u5c3e\u9012\u5f52<\/strong>\uff08<em>tail recursion<\/em>\uff09\u662f\u6307\u628a\u9012\u5f52\u8c03\u7528\u7f6e\u4e8e\u51fd\u6570\u672b\u5c3e\uff0c\u5373<code>return<\/code>\u4e4b\u524d\uff0c\u8fd9\u79cd\u9012\u5f52\u6700\u7b80\u5355\uff0c\u76f8\u5f53\u4e8e\u5faa\u73af\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 \u9012\u5f52\u548c\u5012\u5e8f\u8ba1\u7b97<\/h3>\n\n\n\n<p>\u9012\u5f52\u5728\u5904\u7406\u5012\u5e8f\u65f6\u975e\u5e38\u65b9\u4fbf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5c06\u5341\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u5e76\u6253\u5370\u7684\u51fd\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void func(int num) {\n    if (num &lt; 2) {\n        printf(\"%d\", num);\n    }\n    else {\n        func(num \/ 2);\n        printf(\"%d\", num % 2);\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u26a0\ufe0f<strong>\u6ce8\u610f<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9012\u5f52\u8fc7\u7a0b\u4f1a\u5360\u7528\u5927\u91cf\u5185\u5b58\u7a7a\u95f4<\/li>\n\n\n\n<li>\u9012\u5f52\u51fd\u6570\u4e0d\u65b9\u4fbf\u9605\u8bfb\u548c\u7ef4\u62a4<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u591a\u6587\u4ef6\u7f16\u8bd1<\/h2>\n\n\n\n<p>\u4ee5\u4e0a\u6587\u7684\u8f6c\u6362\u51fd\u6570\u4e3e\u4f8b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/main.c\n#include &lt;stdio.h&gt;\n#include \"fun.h\"\n\nint main() {\n    func(63);\n    return 0;\n}\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/fun.h\nvoid func(int);\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/fun.c\n#include &lt;stdio.h&gt;\n#include \"fun.h\"\n\nvoid func(int num) {\n    if (num &lt; 2) {\n        printf(\"%d\", num);\n    }\n    else {\n        func(num \/ 2);\n        printf(\"%d\", num % 2);\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5c06\u7528\u5230\u7684\u5e38\u91cf\u548c\u51fd\u6570\u58f0\u660e\u5199\u5728\u5934\u6587\u4ef6\uff08<code>.h<\/code>\uff09\u4e2d\uff0c\u5c06\u51fd\u6570\u5b9e\u73b0\u5199\u5728\u6e90\u6587\u4ef6\uff08<code>.c<\/code>\uff09\u4e2d\u3002<\/p>\n\n\n\n<p>\u26a0\ufe0f<strong>\u6ce8\u610f<\/strong>\uff1a\u4e3b\u7a0b\u5e8f\u6587\u4ef6\u548c\u51fd\u6570\u5b9e\u73b0\u6587\u4ef6\u90fd\u9700\u8981\u5305\u542b\u5934\u6587\u4ef6\uff08\u4f8b\u5b50\u4e2d\u662f<code>fun.h<\/code>\uff09\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u67e5\u627e\u5730\u5740\uff1a<code>&amp;<\/code>\u8fd0\u7b97\u7b26<\/h2>\n\n\n\n<p><strong>\u6307\u9488<\/strong>\uff08<em>pointer<\/em>\uff09\u662fC\u8bed\u8a00\u6700\u91cd\u8981\u7684\u6982\u5ff5\u4e4b\u4e00\uff0c\u7528\u4e8e\u50a8\u5b58\u53d8\u91cf\u7684\u5730\u5740\u3002\u4e00\u5143\u8fd0\u7b97\u7b26<code>&amp;<\/code>\u7ed9\u51fa\u53d8\u91cf\u7684\u50a8\u5b58\u5730\u5740\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;stdio.h&gt;\n\nvoid func(int, int);\n\nvoid func(int num1, int num2) {\n    printf(\"num1: %p num2: %p\\n\", &amp;num1, &amp;num2);\n}\n\nint main() {\n    int num1, num2;\n    printf(\"num1: %p num2: %p\\n\", &amp;num1, &amp;num2);\n    func(num1, num2);\n    return 0;\n}\n\/\/ \u8f93\u51fa\u7ed3\u679c\uff1b\n\/\/ num1: 000000315A4FF594 num2: 000000315A4FF5B4\n\/\/ num1: 000000315A4FF570 num2: 000000315A4FF578\n<\/code><\/pre>\n\n\n\n<p>\u540c\u540d\u53d8\u91cf\u5176\u5730\u5740\u4e0d\u540c\uff0c\u8fd9\u4ee3\u8868\u5728\u8ba1\u7b97\u673a\u770b\u4e86\uff0c\u8fd9\u662f4\u4e2a\u72ec\u7acb\u7684\u53d8\u91cf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.1 \u66f4\u6539\u4e3b\u8c03\u51fd\u6570\u4e2d\u7684\u53d8\u91cf<\/h3>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u5e0c\u671b\u5728\u4e0d\u4f7f\u7528\u8fd4\u56de\u503c\u7684\u60c5\u51b5\u4e0b\uff0c\u88ab\u8c03\u51fd\u6570\u53ef\u4ee5\u4ea4\u6362\u4e3b\u8c03\u51fd\u6570\u4e2d\u4e24\u4e2a\u53d8\u91cf\u7684\u503c\uff0c\u8be5\u5982\u4f55\u505a\uff1f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;stdio.h&gt;\n\nvoid func(int*, int*);\n\nvoid func(int* num1, int* num2) {\n    int temp = *num1;\n    *num1 = *num2;\n    *num2 = temp;\n    return;\n}\n\nint main() {\n    int num1 = 10;\n    int num2 = 20;\n    printf(\"num1: %d num2: %d\\n\", num1, num2);\n    func(&amp;num1, &amp;num2);\n    printf(\"num1: %d num2: %d\\n\", num1, num2);\n    return 0;\n}\n\/\/ \u8f93\u51fa\u7ed3\u679c\uff1a\n\/\/ num1: 10 num2: 20\n\/\/ num1: 20 num2: 10\n<\/code><\/pre>\n\n\n\n<p><code>*<\/code>\u53eb\u4f5c<strong>\u95f4\u63a5\u8fd0\u7b97\u7b26<\/strong>\uff08<em>indirection operator<\/em>\uff09\uff0c\u4e5f\u53eb<strong>\u89e3\u5f15\u7528\u8fd0\u7b97\u7b26<\/strong>\uff08<em>dereferencing operator<\/em>\uff09\uff0c\u5b83\u53ef\u4ee5\u627e\u51fa\u50a8\u5b58\u5728\u53d8\u91cf\u5730\u5740\u4e2d\u7684\u503c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.2 \u58f0\u660e\u6307\u9488<\/h3>\n\n\n\n<p>\u58f0\u660e\u6307\u9488\u7c7b\u578b\u7684\u53d8\u91cf\u9700\u8981\u5728\u76f8\u5e94\u7c7b\u578b\u540e\u52a0<code>*<\/code>\u53f7\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int a;  \/\/ \u9519\u8bef\uff0c\u8fd9\u662fint\u7c7b\u578b\u7684\u53d8\u91cf\nint * b; \/\/ \u6b63\u786e\uff0c\u8fd9\u662f\u4e00\u4e2a\u6307\u9488\u53d8\u91cf\uff0c\u5b83\u6307\u5411\u7684\u53d8\u91cf\u7c7b\u578b\u662fint\n<\/code><\/pre>\n\n\n\n<p>\u26a0\ufe0f<strong>\u6ce8\u610f<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u58f0\u660e\u6307\u9488\u53d8\u91cf\u65f6<code>*<\/code>\u5de6\u53f3\u4e24\u8fb9\u7684\u7a7a\u683c\u53ef\u6709\u53ef\u65e0\u3002\u901a\u5e38\u5728\u58f0\u660e\u65f6\u6dfb\u52a0\u7a7a\u683c\uff0c\u89e3\u5f15\u7528\u65f6\u7701\u7565\u7a7a\u683c\u3002<\/li>\n\n\n\n<li>\u6307\u9488\u7684\u503c\u662f\u4e00\u4e2a\u5730\u5740\uff0c\u7531\u65e0\u7b26\u53f7\u6574\u6570\u8868\u793a\uff0c\u4f46\u4e0d\u53ef\u5f53\u505a\u6574\u6570\u6765\u5904\u7406\u3002\u4e00\u4e9b\u6574\u6570\u64cd\u4f5c\u4e0d\u80fd\u5904\u7406\u6307\u9488\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u4f8b\u5982\u4e0d\u80fd\u5c06\u4e24\u4e2a\u6307\u9488\u76f8\u4e58\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>1. \u51fd\u6570 \u51fd\u6570\uff08function\uff09\u662f\u5b8c\u6210\u7279\u5b9a\u4efb\u52a1\u7684\u72ec\u7acb\u7a0b\u5e8f\u4ee3\u7801\u5355\u5143\u3002\u8bed\u6cd5\u7ed3\u6784\u5b9a\u4e49\u4e86\u51fd\u6570\u7684\u7ed3\u6784\u548c\u4f7f\u7528\u65b9\u5f0f\u3002 \u51fd [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[11],"class_list":["post-101","post","type-post","status-publish","format-standard","hentry","category-c-2","tag-c-2"],"_links":{"self":[{"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/posts\/101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/comments?post=101"}],"version-history":[{"count":1,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/posts\/101\/revisions"}],"predecessor-version":[{"id":102,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/posts\/101\/revisions\/102"}],"wp:attachment":[{"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/media?parent=101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/categories?post=101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/tags?post=101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}