{"id":7370,"date":"2024-04-06T12:01:01","date_gmt":"2024-04-06T04:01:01","guid":{"rendered":""},"modified":"2024-04-06T12:01:01","modified_gmt":"2024-04-06T04:01:01","slug":"\u8be6\u89e3C\u8bed\u8a00\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f53","status":"publish","type":"post","link":"https:\/\/mushiming.com\/7370.html","title":{"rendered":"\u8be6\u89e3C\u8bed\u8a00\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f53"},"content":{"rendered":"<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display: none;\"> \n <path stroke-linecap=\"round\" d=\"M5,0 0,2.5 5,5z\" id=\"raphael-marker-block\" style=\"-webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"><\/path> \n<\/svg> <\/p>\n<div class=\"toc\">\n<h4>\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f53<\/h4>\n<ul>\n<li>\n<ul>\n<li>1.\u4ec0\u4e48\u662f\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f53<\/li>\n<li>2.\u5b9a\u4e49\u7ed3\u6784\u4f53<\/li>\n<li>\n<ul>\n<li>2.1 \u5305\u542b\u7ed3\u6784\u4f53\u6210\u5458\u53d8\u91cf\u3001variable<\/li>\n<li>2.2 tag\u3001\u7ed3\u6784\u4f53\u6210\u5458\u53d8\u91cf<\/li>\n<li>2.3 \u7528\u7ed3\u6784\u4f53\u58f0\u540d\u53d8\u91cf<\/li>\n<li>2.4 \u7528typedef \u521b\u5efa\u65b0\u7c7b\u578b<\/li>\n<li>2.5 \u4e24\u4e2a\u7ed3\u6784\u4f53\u76f8\u4e92\u5305\u542b<\/li>\n<li>2.6 \u7ed3\u6784\u4f53\u53d8\u91cf\u521d\u59cb\u5316<\/li>\n<li>2.7 \u7ed3\u6784\u4f53\u6307\u9488<\/li>\n<\/ul>\n<\/li>\n<li>3.\u679a\u4e3e<\/li>\n<li>\n<ul>\n<li>3.1 \u5b9a\u4e49\u65b9\u5f0f<\/li>\n<li>3.2 \u4e3a\u4ec0\u4e48\u7528\u679a\u4e3e<\/li>\n<li>3.3 \u679a\u4e3e\u53d8\u91cf\u7684\u5b9a\u4e49<\/li>\n<li>3.4 \u5b9e\u4f8b<\/li>\n<li>3.5 \u679a\u4e3e\u5b9e\u9645\u7528\u9014<\/li>\n<\/ul>\n<\/li>\n<li>4.\u8054\u5408\u4f53<\/li>\n<li>\n<ul>\n<li>4.1 \u4e0e\u7ed3\u6784\u4f53\u533a\u522b<\/li>\n<li>4.2 \u5b9a\u4e49<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/mushiming_com\/0bde560799fd4b2ca879a5b57c3477af.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u8be6\u89e3C\u8bed\u8a00\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f53 (https:\/\/mushiming.com\/)  \u7b2c1\u5f20\" title=\"\u8be6\u89e3C\u8bed\u8a00\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f53  \u7b2c1\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h3>1.\u4ec0\u4e48\u662f\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f53<\/h3>\n<blockquote>\n<p>\u7ed3\u6784\u4f53(struct)\u662f\u7531\u4e00\u7cfb\u5217\u5177\u6709\u76f8\u540c\u7c7b\u578b\u6216\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u9879\u6784\u6210\u7684\u6570\u636e\u96c6\u5408\uff0c\u8fd9\u4e9b\u6570\u636e\u9879\u79f0\u4e3a\u7ed3\u6784\u4f53\u7684\u6210\u5458\u3002\u5982\u4e0b\u9762\u7684student\u7ed3\u6784\u4f53\u5305\u542b\u4e09\u4e2a\u6210\u5458\uff0c\u5206\u522b\u662fname\u3001num\u3001age\u3002<\/p>\n<\/blockquote>\n<blockquote>\n<p>\u679a\u4e3e(enum)\u662fC\u8bed\u8a00\u7684\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u3002\u5f53\u6211\u4eec\u5728\u7f16\u7a0b\u4e2d\u9047\u5230\u5b9a\u4e49\u4e00\u4e9b\u56fa\u5b9a\u957f\u5ea6\u6216\u8303\u56f4\u7684\u6570\u503c\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u679a\u4e3e\u7c7b\u578b\u3002\u4f7f\u7528\u679a\u4e3e\u53ef\u4ee5\u8ba9\u6211\u4eec\u7684\u7a0b\u5e8f\u53ef\u8bfb\u6027\u66f4\u5f3a\u3001\u770b\u8d77\u6765\u66f4\u52a0\u76f4\u89c2\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5982\u679c\u6211\u4eec\u5728\u7f16\u7a0b\u4e2d\u9700\u8981\u4f7f\u7528\u6570\u5b570<sub>6\u5206\u522b\u8868\u793a\u661f\u671f\u65e5<\/sub>\u661f\u671f\u516d\uff0c\u7a0b\u5e8f\u7684\u53ef\u8bfb\u6027\u5c31\u4e0d\u9ad8\uff0c\u6211\u4eec\u9700\u8981\u7ffb\u624b\u518c\u6216\u8005\u770b\u7a0b\u5e8f\u6ce8\u91ca\u624d\u80fd\u77e5\u9053\u6bcf\u4e2a\u6570\u5b57\u5177\u4f53\u4ee3\u8868\u4ec0\u4e48\u610f\u601d\u3002\u5982\u679c\u6211\u4eec\u4f7f\u7528\u679a\u4e3e\u5462\uff0c\u57fa\u672c\u4e0a\u4e0d\u9700\u8981\u770b\u6ce8\u91ca\u6216\u624b\u518c\u5c31\u53ef\u77e5\u6653\u5176\u5927\u610f\u3002<\/p>\n<\/blockquote>\n<blockquote>\n<p>\u8054\u5408\u4f53\u662f\u4e00\u79cd\u7ed3\u6784\u3002<br \/> \u5b83\u7684\u6240\u6709\u6210\u5458\u76f8\u5bf9\u4e8e\u57fa\u5730\u5740\u7684\u504f\u79fb\u91cf\u90fd\u662f0\u3002<br \/> \u6b64\u7ed3\u6784\u7a7a\u95f4\u8981\u5927\u5230\u8db3\u591f\u5bb9\u7eb3\u6700\u5bbd\u7684\u6210\u5458\u3002<br \/> \u5176\u5bf9\u5176\u65b9\u5f0f\u9002\u5408\u5176\u4e2d\u6240\u6709\u6210\u5458\u3002<\/p>\n<\/blockquote>\n<pre><code class=\"prism language-c\"><span class=\"token comment\">\/\/ \u521b\u5efa\u7ed3\u6784\u4f53<\/span>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">student<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n  <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>name<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5b66\u751f\u540d\u5b57<\/span>\n  <span class=\"token keyword\">int<\/span> num<span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u5b66\u751f\u5b66\u53f7<\/span>\n  <span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u5b66\u751f\u5e74\u9f84<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h3>2.\u5b9a\u4e49\u7ed3\u6784\u4f53<\/h3>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">tag<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\u6210\u5458\u53d8\u91cf<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\n<span class=\"token punctuation\">}<\/span>variable<span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<p>\u901a\u5e38\uff0ctag\u3001\u7ed3\u6784\u4f53\u6210\u5458\u53d8\u91cf\u3001variable\u8fd93\u4e2a\u90e8\u5206\u81f3\u5c11\u8981\u51fa\u73b02\u4e2a<\/p>\n<h4>2.1 \u5305\u542b\u7ed3\u6784\u4f53\u6210\u5458\u53d8\u91cf\u3001variable<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">struct<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t<span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>s1<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/s1\u76f8\u5f53\u4e8e\u5bf9\u8fd9\u4e2a\u7ed3\u6784\u4f53\u58f0\u660e\u4e86\u4e00\u4e2a\u53d8\u91cf\uff0c\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u76f4\u63a5\u8c03\u7528<\/span>\n<\/code><\/pre>\n<p>s1\u76f8\u5f53\u4e8e\u58f0\u660e\u7684\u5168\u5c40\u53d8\u91cf\u3002<\/p>\n<h4>2.2 tag\u3001\u7ed3\u6784\u4f53\u6210\u5458\u53d8\u91cf<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">person<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t<span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>2.3 \u7528\u7ed3\u6784\u4f53\u58f0\u540d\u53d8\u91cf<\/h4>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-c\"><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">person<\/span> p1<span class=\"token punctuation\">,<\/span>p2<span class=\"token punctuation\">[<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><span class=\"token operator\">*<\/span>p3\n<\/code><\/pre>\n<h4>2.4 \u7528typedef \u521b\u5efa\u65b0\u7c7b\u578b<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">struct<\/span> \n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t<span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span> person<span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-c\"><span class=\"token comment\">\/\/\u7528\u65b0\u5b9a\u4e49\u7684person\u7c7b\u578b\u5b9a\u4e49\u53d8\u91cf<\/span>\nperson p1<span class=\"token punctuation\">,<\/span>p2<span class=\"token punctuation\">[<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><span class=\"token operator\">*<\/span>p3\n<\/code><\/pre>\n<h4>2.5 \u4e24\u4e2a\u7ed3\u6784\u4f53\u76f8\u4e92\u5305\u542b<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">B<\/span><span class=\"token punctuation\">;<\/span>\t\t\t\t<span class=\"token comment\">\/\/\u9700\u5148\u5bf9\u7ed3\u6784\u4f53B\u8fdb\u884c\u58f0\u660e\uff0c\u4e0d\u7136\u58f0\u660eA\u65f6\u7f16\u8bd1\u65e0\u6cd5\u901a\u8fc7<\/span>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">A<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">B<\/span> <span class=\"token operator\">*<\/span>partner<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token comment\">\/\/other members;<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">B<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">A<\/span> <span class=\"token operator\">*<\/span>partner<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token comment\">\/\/other members;<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>2.6 \u7ed3\u6784\u4f53\u53d8\u91cf\u521d\u59cb\u5316<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span> <\/span>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">persons<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>person <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span><span class=\"token string\">\"chuhe\"<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">18<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%s,%d\"<\/span><span class=\"token punctuation\">,<\/span> person<span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">,<\/span> person<span class=\"token punctuation\">.<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<h4>2.7 \u7ed3\u6784\u4f53\u6307\u9488<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span> <\/span>\n\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">persons<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>    \n    <span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>persons<span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">persons<\/span> p <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span> <span class=\"token string\">\"chuhe\"<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">18<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%s,%d\\n\"<\/span><span class=\"token punctuation\">,<\/span> p<span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">,<\/span> p<span class=\"token punctuation\">.<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    persons<span class=\"token operator\">*<\/span> p1 <span class=\"token operator\">=<\/span> <span class=\"token operator\">&amp;<\/span>p<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5b9a\u4e49\u7ed3\u6784\u4f53\u6307\u9488<\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%s,%d\\n\"<\/span><span class=\"token punctuation\">,<\/span> p1<span class=\"token operator\">-&gt;<\/span>name<span class=\"token punctuation\">,<\/span> p1<span class=\"token operator\">-&gt;<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<h3>3.\u679a\u4e3e<\/h3>\n<h4>3.1 \u5b9a\u4e49\u65b9\u5f0f<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">enum<\/span> \u679a\u4e3e\u540d<span class=\"token punctuation\">{ \n   <!-- --><\/span>\u5143\u7d20<span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span>\u5143\u7d20<span class=\"token number\">2<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>3.2 \u4e3a\u4ec0\u4e48\u7528\u679a\u4e3e<\/h4>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-c\"><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MON<\/span> <span class=\"token expression\"><span class=\"token number\">1<\/span><\/span><\/span>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">TUE<\/span> <span class=\"token expression\"><span class=\"token number\">2<\/span><\/span><\/span>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">WED<\/span> <span class=\"token expression\"><span class=\"token number\">3<\/span><\/span><\/span>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">THU<\/span> <span class=\"token expression\"><span class=\"token number\">4<\/span><\/span><\/span>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">FRI<\/span> <span class=\"token expression\"><span class=\"token number\">5<\/span><\/span><\/span>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">SAT<\/span> <span class=\"token expression\"><span class=\"token number\">6<\/span><\/span><\/span>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">SUN<\/span> <span class=\"token expression\"><span class=\"token number\">7<\/span><\/span><\/span>\n<\/code><\/pre>\n<p>\u4f8b\u5982\u4e0a\u5f0f\uff0c\u5b9a\u4e49\u975e\u5e38\u9ebb\u70e6\uff0c\u6b64\u65f6\u4fbf\u53ef\u4ee5\u7528\u679a\u4e3e<\/p>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">enum<\/span> <span class=\"token class-name\">DAY<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>MON<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span>TUE<span class=\"token punctuation\">,<\/span>WED<span class=\"token punctuation\">,<\/span> THU<span class=\"token punctuation\">,<\/span> FRI<span class=\"token punctuation\">,<\/span> SAT<span class=\"token punctuation\">,<\/span> SUN<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<p>\u6ce8\u610f\uff1a\u7b2c\u4e00\u4e2a\u679a\u4e3e\u6210\u5458\u7684\u9ed8\u8ba4\u503c\u4e3a\u6574\u578b\u7684 0\uff0c\u540e\u7eed\u679a\u4e3e\u6210\u5458\u7684\u503c\u5728\u524d\u4e00\u4e2a\u6210\u5458\u4e0a\u52a0 1\u3002\u6211\u4eec\u5728\u8fd9\u4e2a\u5b9e\u4f8b\u4e2d\u628a\u7b2c\u4e00\u4e2a\u679a\u4e3e\u6210\u5458\u7684\u503c\u5b9a\u4e49\u4e3a 1\uff0c\u7b2c\u4e8c\u4e2a\u5c31\u4e3a 2\uff0c\u4ee5\u6b64\u7c7b\u63a8<\/p>\n<h4>3.3 \u679a\u4e3e\u53d8\u91cf\u7684\u5b9a\u4e49<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">enum<\/span> <span class=\"token class-name\">DAY<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>MON<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span>TUE<span class=\"token punctuation\">,<\/span>WED<span class=\"token punctuation\">,<\/span>THU<span class=\"token punctuation\">,<\/span>FRI<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">enum<\/span> <span class=\"token class-name\">DAY<\/span> day<span class=\"token punctuation\">;<\/span>\n\n<span class=\"token keyword\">enum<\/span> <span class=\"token class-name\">DAY<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>MON<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span>TUE<span class=\"token punctuation\">,<\/span>WED<span class=\"token punctuation\">,<\/span>THU<span class=\"token punctuation\">,<\/span>FRI<span class=\"token punctuation\">}<\/span>day<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u4e5f\u53ef\u4ee5\u5728\u5b9a\u4e49\u679a\u4e3e\u7c7b\u578b\u65f6\u4e00\u8d77\u5b9a\u4e49<\/span>\n\n<span class=\"token keyword\">enum<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>MON<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> TUE<span class=\"token punctuation\">,<\/span> WED<span class=\"token punctuation\">,<\/span> THU<span class=\"token punctuation\">,<\/span> FRI<span class=\"token punctuation\">,<\/span> SAT<span class=\"token punctuation\">,<\/span> SUN<span class=\"token punctuation\">}<\/span>day<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u53ef\u4ee5\u7701\u7565\u679a\u4e3e\u540d\u79f0<\/span>\n\n<\/code><\/pre>\n<h4>3.4 \u5b9e\u4f8b<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span>\n<span class=\"token keyword\">enum<\/span> <span class=\"token class-name\">DAY<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n      MON<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> TUE<span class=\"token punctuation\">,<\/span> WED<span class=\"token punctuation\">,<\/span> THU<span class=\"token punctuation\">,<\/span> FRI<span class=\"token punctuation\">,<\/span> SAT<span class=\"token punctuation\">,<\/span> SUN\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">enum<\/span> <span class=\"token class-name\">DAY<\/span> day<span class=\"token punctuation\">;<\/span>\n    day <span class=\"token operator\">=<\/span> WED<span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%d\"<\/span><span class=\"token punctuation\">,<\/span>day<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n\n<\/code><\/pre>\n<h4>3.5 \u679a\u4e3e\u5b9e\u9645\u7528\u9014<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdlib.h&gt;<\/span><\/span>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">enum<\/span> <span class=\"token class-name\">color<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span> red<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> green<span class=\"token punctuation\">,<\/span> blue <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">enum<\/span>  <span class=\"token class-name\">color<\/span> favorite_color<span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u8bf7\u8f93\u5165\u4f60\u559c\u6b22\u7684\u989c\u8272: (1. red, 2. green, 3. blue): \"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%u\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>favorite_color<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">switch<\/span> <span class=\"token punctuation\">(<\/span>favorite_color<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">case<\/span> red<span class=\"token operator\">:<\/span>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4f60\u559c\u6b22\u7684\u989c\u8272\u662f\u7ea2\u8272\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">case<\/span> green<span class=\"token operator\">:<\/span>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4f60\u559c\u6b22\u7684\u989c\u8272\u662f\u7eff\u8272\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">case<\/span> blue<span class=\"token operator\">:<\/span>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4f60\u559c\u6b22\u7684\u989c\u8272\u662f\u84dd\u8272\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">default<\/span><span class=\"token operator\">:<\/span>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4f60\u6ca1\u6709\u9009\u62e9\u4f60\u559c\u6b22\u7684\u989c\u8272\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<h3>4.\u8054\u5408\u4f53<\/h3>\n<p>\u901a\u8fc7\u524d\u9762\u7684\u8bb2\u89e3\uff0c\u6211\u4eec\u77e5\u9053\u7ed3\u6784\u4f53\uff08Struct\uff09\u662f\u4e00\u79cd\u6784\u9020\u7c7b\u578b\u6216\u590d\u6742\u7c7b\u578b\uff0c\u5b83\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u7c7b\u578b\u4e0d\u540c\u7684\u6210\u5458\u3002\u5728C\u8bed\u8a00\u4e2d\uff0c\u8fd8\u6709\u53e6\u5916\u4e00\u79cd\u548c\u7ed3\u6784\u4f53\u975e\u5e38\u7c7b\u4f3c\u7684\u8bed\u6cd5\uff0c\u53eb\u505a\u5171\u7528\u4f53\uff08Union\uff09\uff0c\u5b83\u7684\u5b9a\u4e49\u683c\u5f0f\u4e3a\uff1a<\/p>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">union<\/span> \u5171\u7528\u4f53\u540d<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    \u6210\u5458\u5217\u8868\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>4.1 \u4e0e\u7ed3\u6784\u4f53\u533a\u522b<\/h4>\n<p>\u7ed3\u6784\u4f53\u548c\u5171\u7528\u4f53\u7684\u533a\u522b\u5728\u4e8e\uff1a\u7ed3\u6784\u4f53\u7684\u5404\u4e2a\u6210\u5458\u4f1a\u5360\u7528\u4e0d\u540c\u7684\u5185\u5b58\uff0c\u4e92\u76f8\u4e4b\u95f4\u6ca1\u6709\u5f71\u54cd\uff1b\u800c\u5171\u7528\u4f53\u7684\u6240\u6709\u6210\u5458\u5360\u7528\u540c\u4e00\u6bb5\u5185\u5b58\uff0c\u4fee\u6539\u4e00\u4e2a\u6210\u5458\u4f1a\u5f71\u54cd\u5176\u4f59\u6240\u6709\u6210\u5458\u3002<\/p>\n<h4>4.2 \u5b9a\u4e49<\/h4>\n<pre><code class=\"prism language-c\"><span class=\"token keyword\">union<\/span> data<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">int<\/span> n<span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">char<\/span> ch<span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">double<\/span> f<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">union<\/span> data a<span class=\"token punctuation\">,<\/span> b<span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<p>\u5171\u7528\u4f53 data \u4e2d\uff0c\u6210\u5458 f \u5360\u7528\u7684\u5185\u5b58\u6700\u591a\uff0c\u4e3a 8 \u4e2a\u5b57\u8282\uff0c\u6240\u4ee5 data \u7c7b\u578b\u7684\u53d8\u91cf\uff08\u4e5f\u5c31\u662f a\u3001b\u3001c\uff09\u4e5f\u5360\u7528 8 \u4e2a\u5b57\u8282\u7684\u5185\u5b58\uff0c\u8bf7\u770b\u4e0b\u9762\u7684\u6f14\u793a\uff1a<\/p>\n<pre><code class=\"prism language-c\"><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span>\n\n<span class=\"token keyword\">union<\/span> data<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">int<\/span> n<span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">char<\/span> ch<span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">short<\/span> m<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">union<\/span> data a<span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%d, %d\\n\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>a<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">union<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    a<span class=\"token punctuation\">.<\/span>n <span class=\"token operator\">=<\/span> <span class=\"token number\">0x40<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%X, %c, %hX\\n\"<\/span><span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>n<span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>ch<span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>m<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    a<span class=\"token punctuation\">.<\/span>ch <span class=\"token operator\">=<\/span> <span class=\"token string\">'9'<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%X, %c, %hX\\n\"<\/span><span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>n<span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>ch<span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>m<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    a<span class=\"token punctuation\">.<\/span>m <span class=\"token operator\">=<\/span> <span class=\"token number\">0x2059<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%X, %c, %hX\\n\"<\/span><span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>n<span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>ch<span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>m<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    a<span class=\"token punctuation\">.<\/span>n <span class=\"token operator\">=<\/span> <span class=\"token number\">0x3E25AD54<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%X, %c, %hX\\n\"<\/span><span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>n<span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>ch<span class=\"token punctuation\">,<\/span> a<span class=\"token punctuation\">.<\/span>m<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n   \n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u8fd0\u884c\u7ed3\u679c\uff1a<br \/> 4, 4<br \/> 40, @, 40<br \/> 39, 9, 39<br \/> 2059, Y, 2059<br \/> 3E25AD54, T, AD54<\/p>\n","protected":false},"excerpt":{"rendered":"\u8be6\u89e3C\u8bed\u8a00\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f53\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f531.\u4ec0\u4e48\u662f\u7ed3\u6784\u4f53\u3001\u679a\u4e3e\u3001\u8054\u5408\u4f532.\u5b9a\u4e49\u7ed3\u6784\u4f532.1\u5305\u542b\u7ed3\u6784\u4f53\u6210\u5458\u53d8\u91cf\u3001varia...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/7370"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=7370"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/7370\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=7370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=7370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=7370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}