{"id":40885,"date":"2025-05-30T12:26:25","date_gmt":"2025-05-30T04:26:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/40885.html"},"modified":"2025-05-30T12:26:25","modified_gmt":"2025-05-30T04:26:25","slug":"%e3%80%90c-c%e3%80%91%e8%87%aa%e5%ae%9a%e4%b9%89%e7%b1%bb%e5%9e%8b%ef%bc%9a%e7%bb%93%e6%9e%84%e4%bd%93","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/40885.html","title":{"rendered":"\u3010C\/C++\u3011\u81ea\u5b9a\u4e49\u7c7b\u578b\uff1a\u7ed3\u6784\u4f53"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042621-6839336d47a68.jpg\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u81ea\u5b9a\u4e49\u7c7b\u578b&#xff1a;\u7ed3\u6784\u4f53<\/li>\n<li>\n<ul>\n<li>1.\u7ed3\u6784\u4f53\u7c7b\u578b\u7684\u58f0\u660e<\/li>\n<li>\n<ul>\n<li>1.1 \u7ed3\u6784\u4f53\u56de\u987e<\/li>\n<li>\n<ul>\n<li>1.1.1 \u7ed3\u6784\u7684\u58f0\u660e<\/li>\n<\/ul>\n<\/li>\n<li>1.1.2 \u7ed3\u6784\u4f53\u53d8\u91cf\u7684\u521b\u5efa\u548c\u521d\u59cb\u5316<\/li>\n<li>1.2 \u7ed3\u6784\u7684\u7279\u6b8a\u58f0\u660e<\/li>\n<li>1.3 \u7ed3\u6784\u7684\u81ea\u5f15\u7528<\/li>\n<\/ul>\n<\/li>\n<li>2.\u7ed3\u6784\u4f53\u5185\u5b58\u5bf9\u9f50<\/li>\n<li>\n<ul>\n<li>2.1 \u5bf9\u2eec\u89c4\u5219<\/li>\n<li>2.2 \u4e3a\u4ec0\u4e48\u5b58\u5728\u5185\u5b58\u5bf9\u9f50&#xff1f;<\/li>\n<li>2.3 \u4fee\u6539\u9ed8\u8ba4\u5bf9\u2eec\u6570<\/li>\n<\/ul>\n<\/li>\n<li>3. \u7ed3\u6784\u4f53\u4f20\u53c2<\/li>\n<li>4.\u7ed3\u6784\u4f53\u5b9e\u73b0\u4f4d\u6bb5<\/li>\n<li>\n<ul>\n<li>4.1 \u4ec0\u4e48\u662f\u4f4d\u6bb5<\/li>\n<li>4.2 \u4f4d\u6bb5\u7684\u5185\u5b58\u5206\u914d<\/li>\n<li>4.3 \u4f4d\u6bb5\u7684\u8de8\u5e73\u53f0\u95ee\u9898<\/li>\n<li>4.4 \u4f4d\u6bb5\u7684\u5e94\u7528<\/li>\n<li>4.5 \u4f4d\u6bb5\u4f7f\u7528\u7684\u6ce8\u610f\u4e8b\u9879<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u524d\u8a00<\/h2>\n<p>\u96c6\u6210\u5f00\u53d1\u73af\u5883\u4e3avs2022<\/p>\n<p>c\u8bed\u8a00\u6709\u5185\u7f6e\u7c7b\u578b(char short int long flaot double long double)&#xff0c;\u4e5f\u6709\u81ea\u5b9a\u4e49\u7c7b\u578b\u2014\u7ed3\u6784\u4f53(struct) \u679a\u4e3e(enum) \u8054\u5408\u4f53(union) \u672c\u7bc7\u5e45\u4ecb\u7ecd\u7ed3\u6784\u4f53<\/p>\n<h2>\u81ea\u5b9a\u4e49\u7c7b\u578b&#xff1a;\u7ed3\u6784\u4f53<\/h2>\n<h3>1.\u7ed3\u6784\u4f53\u7c7b\u578b\u7684\u58f0\u660e<\/h3>\n<p>\u524d\u2faf\u6211\u4eec\u5728\u5b66\u4e60\u64cd\u4f5c\u7b26\u7684\u65f6\u5019&#xff0c;\u5df2\u7ecf\u5b66\u4e60\u4e86\u7ed3\u6784\u4f53\u7684\u77e5\u8bc6&#xff0c;\u8fd9\u2fa5\u7a0d\u5fae\u590d\u4e60\u2f00\u4e0b\u3002<\/p>\n<h4>1.1 \u7ed3\u6784\u4f53\u56de\u987e<\/h4>\n<p>\u7ed3\u6784\u662f\u2f00\u4e9b\u503c\u7684\u96c6\u5408&#xff0c;\u8fd9\u4e9b\u503c\u79f0\u4e3a\u6210\u5458\u53d8\u91cf\u3002\u7ed3\u6784\u7684\u6bcf\u4e2a\u6210\u5458\u53ef\u4ee5\u662f\u4e0d\u540c\u7c7b\u578b\u7684\u53d8\u91cf\u3002<\/p>\n<h5>1.1.1 \u7ed3\u6784\u7684\u58f0\u660e<\/h5>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">tag<\/span><span class=\"token comment\">\/\/\u6807\u7b7e\u540d<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n member<span class=\"token operator\">&#8211;<\/span>list<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6210\u5458 1\u4e2a\u6216\u591a\u4e2a<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>variable<span class=\"token operator\">&#8211;<\/span>list<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u53d8\u91cf\u5217\u8868<\/span><\/p>\n<p>\u4f8b\u5982\u63cf\u8ff0\u2f00\u4e2a\u5b66\u2f63&#xff1a;<\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Stu<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u540d\u5b57 <\/span><br \/>\n <span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5e74\u9f84 <\/span><br \/>\n <span class=\"token keyword\">char<\/span> sex<span class=\"token punctuation\">[<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6027\u522b <\/span><br \/>\n <span class=\"token keyword\">char<\/span> id<span class=\"token punctuation\">[<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5b66\u53f7 <\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u5206\u53f7\u4e0d\u80fd\u4e22 <\/span><\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Book<\/span> b2<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5168\u5c40\u53d8\u91cf<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Book<\/span> b1<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5c40\u90e8\u53d8\u91cf<\/span><br \/>\n <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>1.1.2 \u7ed3\u6784\u4f53\u53d8\u91cf\u7684\u521b\u5efa\u548c\u521d\u59cb\u5316<\/h4>\n<p><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><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Stu<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u540d\u5b57 <\/span><br \/>\n <span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5e74\u9f84 <\/span><br \/>\n <span class=\"token keyword\">char<\/span> sex<span class=\"token punctuation\">[<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6027\u522b <\/span><br \/>\n <span class=\"token keyword\">char<\/span> id<span class=\"token punctuation\">[<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5b66\u53f7 <\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token comment\">\/\/\u6309\u7167\u7ed3\u6784\u4f53\u6210\u5458\u7684\u987a\u5e8f\u521d\u59cb\u5316 <\/span><br \/>\n <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Stu<\/span> s <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token string\">&#034;\u5f20\u4e09&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7537&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;20230818001&#034;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;name: %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;age : %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">.<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;sex : %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">.<\/span>sex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;id : %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">.<\/span>id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p> <span class=\"token comment\">\/\/\u6309\u7167\u6307\u5b9a\u7684\u987a\u5e8f\u521d\u59cb\u5316 <\/span><br \/>\n <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Stu<\/span> s2 <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token punctuation\">.<\/span>age <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">18<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">.<\/span>name <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;lisi&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">.<\/span>id <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;20230818002&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">.<\/span>sex <span class=\"token operator\">&#061;<\/span><br \/>\n<span class=\"token string\">&#034;\u2f25&#034;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;name: %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s2<span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;age : %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s2<span class=\"token punctuation\">.<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;sex : %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s2<span class=\"token punctuation\">.<\/span>sex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;id : %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s2<span class=\"token punctuation\">.<\/span>id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>1.2 \u7ed3\u6784\u7684\u7279\u6b8a\u58f0\u660e<\/h4>\n<p>\u5728\u58f0\u660e\u7ed3\u6784\u7684\u65f6\u5019&#xff0c;\u53ef\u4ee5\u4e0d\u5b8c\u5168\u7684\u58f0\u660e\u3002<\/p>\n<p>\u2f50\u5982&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/\u533f\u540d\u7ed3\u6784\u4f53\u7c7b\u578b <\/span><br \/>\n<span class=\"token keyword\">struct<\/span><span class=\"token comment\">\/\/\u8fd9\u91cc\u4e0d\u5199\u540d\u5b57<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">int<\/span> a<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">char<\/span> b<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">float<\/span> c<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>s<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u53ef\u4ee5\u5728\u8fd9\u521d\u59cb\u5316<\/span><br \/>\n<span class=\"token comment\">\/\/}s&#061;{&#039;x&#039;,100.3.14};<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%c %d %lf&#034;<\/span><span class=\"token punctuation\">,<\/span>s<span class=\"token punctuation\">.<\/span>c<span class=\"token punctuation\">,<\/span>s<span class=\"token punctuation\">.<\/span>i<span class=\"token punctuation\">,<\/span>s<span class=\"token punctuation\">.<\/span>d<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u533f\u540d\u7ed3\u6784\u4f53\u4e5f\u53ef\u4ee5\u91cd\u65b0\u547d\u540d<\/p>\n<p><span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">struct<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">double<\/span> d<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>s<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4e0a\u2faf\u7684\u4e24\u4e2a\u7ed3\u6784\u5728\u58f0\u660e\u7684\u65f6\u5019\u7701\u7565\u6389\u4e86\u7ed3\u6784\u4f53\u6807\u7b7e&#xff08;tag&#xff09;\u3002 \u90a3\u4e48\u95ee\u9898\u6765\u4e86&#xff1f;<\/p>\n<p>\/\/\u5728\u4e0a\u2faf\u4ee3\u7801\u7684\u57fa\u7840\u4e0a&#xff0c;\u4e0b\u2faf\u7684\u4ee3\u7801\u5408\u6cd5\u5417&#xff1f;<br \/>\np &#061; &amp;x;<\/p>\n<p>\u8b66\u544a&#xff1a;<\/p>\n<p>\u7f16\u8bd1\u5668\u4f1a\u628a\u4e0a\u2faf\u7684\u4e24\u4e2a\u58f0\u660e\u5f53\u6210\u5b8c\u5168\u4e0d\u540c\u7684\u4e24\u4e2a\u7c7b\u578b&#xff0c;\u6240\u4ee5\u662f\u975e\u6cd5\u7684\u3002<\/p>\n<p>\u533f\u540d\u7684\u7ed3\u6784\u4f53\u7c7b\u578b&#xff0c;\u5982\u679c\u6ca1\u6709\u5bf9\u7ed3\u6784\u4f53\u7c7b\u578b\u91cd\u547d\u540d\u7684\u8bdd&#xff0c;\u57fa\u672c\u4e0a\u53ea\u80fd\u4f7f\u2f64\u2f00\u6b21\u3002<\/p>\n<h4>1.3 \u7ed3\u6784\u7684\u81ea\u5f15\u7528<\/h4>\n<p>\u5728\u7ed3\u6784\u4e2d\u5305\u542b\u2f00\u4e2a\u7c7b\u578b\u4e3a\u8be5\u7ed3\u6784\u672c\u2f9d\u7684\u6210\u5458\u662f\u5426\u53ef\u4ee5\u5462&#xff1f;<\/p>\n<p>\u2f50\u5982&#xff0c;\u5b9a\u4e49\u2f00\u4e2a\u94fe\u8868\u7684\u8282\u70b9&#xff1a;<\/p>\n<p>\u5728\u8fd9\u4e4b\u524d\u5148\u8bb2\u4e00\u4e0b\u94fe\u8868<\/p>\n<p>\u6570\u636e\u7ed3\u6784\u2013\u5176\u5b9e\u662f\u6570\u636e\u5728\u5185\u5b58\u4e2d\u7684\u5b58\u50a8\u548c\u7ec4\u7ec7\u7684\u7ed3\u6784 \u6570\u636e\u6709\u591a\u79cd<\/p>\n<p>\u7ebf\u6027\u6570\u636e\u7ed3\u6784&#xff1a;\u987a\u5e8f\u8868&#xff0c;\u94fe\u8868&#xff0c;\u6808&#xff0c;\u961f\u5217<\/p>\n<p>\u987a\u5e8f\u8868\u2013\u6570\u7ec4<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042622-6839336ea6e33.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u94fe\u8868<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042622-6839336eb667d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p><span class=\"token comment\">\/\/\u5b9a\u4e49\u4e00\u4e2a\u94fe\u8868\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span> next<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u6b63\u786e\u5417&#xff1f;\u5982\u679c\u6b63\u786e&#xff0c;\u90a3 sizeof(struct Node) \u662f\u591a\u5c11&#xff1f;<\/p>\n<p>\u4ed4\u7ec6\u5206\u6790&#xff0c;\u5176\u5b9e\u662f\u4e0d\u2f8f\u7684&#xff0c;\u56e0\u4e3a\u2f00\u4e2a\u7ed3\u6784\u4f53\u4e2d\u518d\u5305\u542b\u2f00\u4e2a\u540c\u7c7b\u578b\u7684\u7ed3\u6784\u4f53\u53d8\u91cf&#xff0c;\u8fd9\u6837\u7ed3\u6784\u4f53\u53d8\u91cf\u7684\u2f24 \u2f29\u5c31\u4f1a\u2f46\u7a77\u7684\u2f24&#xff0c;\u662f\u4e0d\u5408\u7406\u7684\u3002<\/p>\n<p>\u6b63\u786e\u7684\u2f83\u5f15\u2f64\u2f45\u5f0f&#xff1a;<\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span><span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6570\u636e<\/span><br \/>\n <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span><span class=\"token operator\">*<\/span> next<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6307\u9488<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5728\u7ed3\u6784\u4f53\u2f83\u5f15\u2f64\u4f7f\u2f64\u7684\u8fc7\u7a0b\u4e2d&#xff0c;\u5939\u6742\u4e86 typedef \u5bf9\u533f\u540d\u7ed3\u6784\u4f53\u7c7b\u578b\u91cd\u547d\u540d&#xff0c;\u4e5f\u5bb9\u6613\u5f15\u2f0a\u95ee\u9898&#xff0c;\u770b\u770b \u4e0b\u2faf\u7684\u4ee3\u7801&#xff0c;\u53ef\u2f8f\u5417&#xff1f;<\/p>\n<p><span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">struct<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n Node<span class=\"token operator\">*<\/span> next<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>Node<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7b54\u6848\u662f\u4e0d\u2f8f\u7684&#xff0c;\u56e0\u4e3aNode\u662f\u5bf9\u524d\u2faf\u7684\u533f\u540d\u7ed3\u6784\u4f53\u7c7b\u578b\u7684\u91cd\u547d\u540d\u4ea7\u2f63\u7684&#xff0c;\u4f46\u662f\u5728\u533f\u540d\u7ed3\u6784\u4f53\u5185\u90e8\u63d0\u524d\u4f7f \u2f64Node\u7c7b\u578b\u6765\u521b\u5efa\u6210\u5458\u53d8\u91cf&#xff0c;\u8fd9\u662f\u4e0d\u2f8f\u7684\u3002<\/p>\n<p>\u533f\u540d\u7ed3\u6784\u4f53\u7c7b\u578b\u4e0d\u80fd\u5b9e\u73b0\u7ed3\u6784\u4f53\u7684\u81ea\u5f15\u7528<\/p>\n<p>\u89e3\u51b3\u2f45\u6848\u5982\u4e0b&#xff1a;\u5b9a\u4e49\u7ed3\u6784\u4f53\u4e0d\u8981\u4f7f\u7528\u533f\u540d\u7ed3\u6784\u4f53\u4e86<\/p>\n<p><span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span><span class=\"token operator\">*<\/span> next<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>Node<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u4e0a\u8ff0\u4ee3\u7801\u7b49\u4ef7\u4e8e\u4e0b\u8fb9\u4ee3\u7801<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span><span class=\"token operator\">*<\/span> next<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span> Node<span class=\"token punctuation\">;<\/span><\/p>\n<h3>2.\u7ed3\u6784\u4f53\u5185\u5b58\u5bf9\u9f50<\/h3>\n<p>\u6211\u4eec\u5df2\u7ecf\u638c\u63e1\u4e86\u7ed3\u6784\u4f53\u7684\u57fa\u672c\u4f7f\u2f64\u4e86\u3002<\/p>\n<p>\u73b0\u5728\u6211\u4eec\u6df1\u2f0a\u8ba8\u8bba\u2f00\u4e2a\u95ee\u9898&#xff1a;\u8ba1\u7b97\u7ed3\u6784\u4f53\u7684\u2f24\u2f29\u3002<\/p>\n<p>\u8fd9\u4e5f\u662f\u2f00\u4e2a\u7279\u522b\u70ed\u2ed4\u7684\u8003\u70b9&#xff1a; \u7ed3\u6784\u4f53\u5185\u5b58\u5bf9\u2eec<\/p>\n<h4>2.1 \u5bf9\u2eec\u89c4\u5219<\/h4>\n<p>\u2fb8\u5148\u5f97\u638c\u63e1\u7ed3\u6784\u4f53\u7684\u5bf9\u2eec\u89c4\u5219&#xff1a;<\/p>\n<p>1.\u7ed3\u6784\u4f53\u7684\u7b2c1\u4e2a\u6210\u5458\u5bf9\u2eec\u5230\u548c\u7ed3\u6784\u4f53\u53d8\u91cf\u8d77\u59cb\u4f4d\u7f6e\u504f\u79fb\u91cf\u4e3a0\u7684\u5730\u5740\u5904<\/p>\n<p>2.\u4ece\u7b2c2\u4e2a\u6210\u5458\u53d8\u91cf\u5f00\u59cb&#xff0c;\u90fd\u8981\u5bf9\u2eec\u5230\u67d0\u4e2a\u5bf9\u2eec\u6570\u7684\u6574\u6570\u500d\u7684\u5730\u5740\u5904\u3002<\/p>\n<p>\u5bf9\u2eec\u6570&#061;\u7f16\u8bd1\u5668\u9ed8\u8ba4\u7684\u2f00\u4e2a\u5bf9\u2eec\u6570\u4e0e\u8be5\u6210\u5458\u53d8\u91cf\u2f24\u2f29\u7684\u8f83\u2f29\u503c\u3002<\/p>\n<p>VS \u4e2d\u9ed8\u8ba4\u7684\u503c\u4e3a 8<\/p>\n<p>Linux\u4e2dgcc\u6ca1\u6709\u9ed8\u8ba4\u5bf9\u2eec\u6570&#xff0c;\u5bf9\u2eec\u6570\u5c31\u662f\u6210\u5458\u2f83\u2f9d\u7684\u2f24\u2f29<\/p>\n<p>3.\u7ed3\u6784\u4f53\u603b\u5927\u5c0f\u4e3a\u6700\u5927\u5bf9\u9f50\u6570&#xff08;\u7ed3\u6784\u4f53\u4e2d\u6bcf\u4e2a\u6210\u5458\u53d8\u91cf\u90fd\u6709\u2f00\u4e2a\u5bf9\u2eec\u6570&#xff0c;\u6240\u6709\u5bf9\u2eec\u6570\u4e2d\u6700\u2f24\u7684&#xff09;\u7684 \u6574\u6570\u500d\u3002<\/p>\n<p>4.\u5982\u679c\u5d4c\u5957\u4e86\u7ed3\u6784\u4f53\u7684\u60c5\u51b5&#xff0c;\u5d4c\u5957\u7684\u7ed3\u6784\u4f53\u6210\u5458\u5bf9\u2eec\u5230\u2f83\u2f30\u7684\u6210\u5458\u4e2d\u6700\u2f24\u5bf9\u2eec\u6570\u7684\u6574\u6570<\/p>\n<p><span class=\"token comment\">\/\/\u7ec3\u4e601 <\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S1<\/span><br \/>\n<span class=\"token punctuation\">{<\/span>       <span class=\"token comment\">\/\/   \u9ed8\u8ba4   \u5bf9\u9f50\u6570<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c1<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ 1 8     1<\/span><br \/>\n <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/   4 8     4<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c2<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ 1 8     1<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u7ec3\u4e602 <\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S2<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c1<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c2<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u7ec3\u4e603 <\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S3<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">double<\/span> d<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u7ec3\u4e604-\u7ed3\u6784\u4f53\u5d4c\u5957\u95ee\u9898 <\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S4<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c1<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S3<\/span> s3<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">double<\/span> d<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S4<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042622-6839336eda55b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>2.2 \u4e3a\u4ec0\u4e48\u5b58\u5728\u5185\u5b58\u5bf9\u9f50&#xff1f;<\/h4>\n<p>\u2f24\u90e8\u5206\u7684\u53c2\u8003\u8d44\u6599\u90fd\u662f\u8fd9\u6837\u8bf4\u7684&#xff1a;<\/p>\n<p>1. \u5e73\u53f0\u539f\u56e0(\u79fb\u690d\u539f\u56e0)&#xff1a;<\/p>\n<p>\u4e0d\u662f\u6240\u6709\u7684\u786c\u4ef6\u5e73\u53f0\u90fd\u80fd\u8bbf\u95ee\u4efb\u610f\u5730\u5740\u4e0a\u7684\u4efb\u610f\u6570\u636e\u7684&#xff1b;\u67d0\u4e9b\u786c\u4ef6\u5e73\u53f0\u53ea\u80fd\u5728\u67d0\u4e9b\u5730\u5740\u5904\u53d6\u67d0\u4e9b\u7279\u5b9a \u7c7b\u578b\u7684\u6570\u636e&#xff0c;\u5426\u5219\u629b\u51fa\u786c\u4ef6\u5f02\u5e38\u3002<\/p>\n<p>2.\u6027\u80fd\u539f\u56e0<\/p>\n<p>\u6570\u636e\u7ed3\u6784(\u5c24\u5176\u662f\u6808)\u5e94\u8be5\u5c3d\u53ef\u80fd\u5730\u5728\u2f83\u7136\u8fb9\u754c\u4e0a\u5bf9\u2eec\u3002\u539f\u56e0\u5728\u4e8e&#xff0c;\u4e3a\u4e86\u8bbf\u95ee\u672a\u5bf9\u2eec\u7684\u5185\u5b58&#xff0c;\u5904\u7406\u5668\u9700\u8981 \u4f5c\u4e24\u6b21\u5185\u5b58\u8bbf\u95ee&#xff1b;\u2f7d\u5bf9\u2eec\u7684\u5185\u5b58\u8bbf\u95ee\u4ec5\u9700\u8981\u2f00\u6b21\u8bbf\u95ee\u3002\u5047\u8bbe\u2f00\u4e2a\u5904\u7406\u5668\u603b\u662f\u4ece\u5185\u5b58\u4e2d\u53d68\u4e2a\u5b57\u8282&#xff0c;\u5219\u5730 \u5740\u5fc5\u987b\u662f8\u7684\u500d\u6570\u3002\u5982\u679c\u6211\u4eec\u80fd\u4fdd\u8bc1\u5c06\u6240\u6709\u7684double\u7c7b\u578b\u7684\u6570\u636e\u7684\u5730\u5740\u90fd\u5bf9\u2eec\u62108\u7684\u500d\u6570&#xff0c;\u90a3\u4e48\u5c31\u53ef\u4ee5 \u2f64\u2f00\u4e2a\u5185\u5b58\u64cd\u4f5c\u6765\u8bfb\u6216\u8005\u5199\u503c\u4e86\u3002\u5426\u5219&#xff0c;\u6211\u4eec\u53ef\u80fd\u9700\u8981\u6267\u2f8f\u4e24\u6b21\u5185\u5b58\u8bbf\u95ee&#xff0c;\u56e0\u4e3a\u5bf9\u8c61\u53ef\u80fd\u88ab\u5206\u653e\u5728\u4e24 \u4e2a8\u5b57\u8282\u5185\u5b58\u5757\u4e2d\u3002<\/p>\n<p>\u603b\u4f53\u6765\u8bf4&#xff1a;\u7ed3\u6784\u4f53\u7684\u5185\u5b58\u5bf9\u2eec\u662f\u62ff\u7a7a\u95f4\u6765\u6362\u53d6\u65f6\u95f4\u7684\u505a\u6cd5\u3002<\/p>\n<p>\u4f8b\u5982<\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">char<\/span> c<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/1<\/span><br \/>\n  <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/4 <\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042622-6839336ef2ec1.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u90a3\u5728\u8bbe\u8ba1\u7ed3\u6784\u4f53\u7684\u65f6\u5019&#xff0c;\u6211\u4eec\u65e2\u8981\u6ee1\u2f9c\u5bf9\u2eec&#xff0c;\u2f1c\u8981\u8282\u7701\u7a7a\u95f4&#xff0c;\u5982\u4f55\u505a\u5230&#xff1a;<\/p>\n<p>\u8ba9\u5360\u2f64\u7a7a\u95f4\u2f29\u7684\u6210\u5458\u5c3d\u91cf\u96c6\u4e2d\u5728\u2f00\u8d77<\/p>\n<p><span class=\"token comment\">\/\/\u4f8b\u5982&#xff1a; <\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S1<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c1<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c2<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S2<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c1<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c2<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>S1 \u548c S2 \u7c7b\u578b\u7684\u6210\u5458\u2f00\u6a21\u2f00\u6837&#xff0c;\u4f46\u662f S1 \u548c S2 \u6240\u5360\u7a7a\u95f4\u7684\u2f24\u2f29\u6709\u4e86\u2f00\u4e9b\u533a\u522b\u3002<\/p>\n<h4>2.3 \u4fee\u6539\u9ed8\u8ba4\u5bf9\u2eec\u6570<\/h4>\n<p>#pragma \u8fd9\u4e2a\u9884\u5904\u7406\u6307\u4ee4&#xff0c;\u53ef\u4ee5\u6539\u53d8\u7f16\u8bd1\u5668\u7684\u9ed8\u8ba4\u5bf9\u2eec\u6570\u3002<\/p>\n<p><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><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\"><span class=\"token function\">pack<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token comment\">\/\/\u8bbe\u7f6e\u9ed8\u8ba4\u5bf9\u2eec\u6570\u4e3a1  \u4e00\u822c\u662f2\u7684\u6b21\u65b9\u6570 linux\u4e2d\u4e0d\u80fd\u6539<\/span><\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c1<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">char<\/span> c2<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\"><span class=\"token function\">pack<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token comment\">\/\/\u53d6\u6d88\u8bbe\u7f6e\u7684\u5bf9\u2eec\u6570&#xff0c;\u8fd8\u539f\u4e3a\u9ed8\u8ba4 <\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token comment\">\/\/\u8f93\u51fa\u7684\u7ed3\u679c\u662f\u4ec0\u4e48&#xff1f; 6<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7ed3\u6784\u4f53\u5728\u5bf9\u2eec\u2f45\u5f0f\u4e0d\u5408\u9002\u7684\u65f6\u5019&#xff0c;\u6211\u4eec\u53ef\u4ee5\u2f83\u2f30\u66f4\u6539\u9ed8\u8ba4\u5bf9\u2eec\u6570\u3002<\/p>\n<h3>3. \u7ed3\u6784\u4f53\u4f20\u53c2<\/h3>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">[<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/4000\u5b57\u8282<\/span><br \/>\n <span class=\"token keyword\">int<\/span> num<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span> s <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">{<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u7ed3\u6784\u4f53\u4f20\u53c2 <\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">print1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span> s<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/s\u5148\u62f7\u8d1d&#xff0c;\u5360\u7528\u5185\u5b58\u5f88\u5927<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/for\u5faa\u73af\u6253\u5370\u6570\u7ec4<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">.<\/span>num<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u7ed3\u6784\u4f53\u5730\u5740\u4f20\u53c2 <\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">print2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span><span class=\"token operator\">*<\/span> ps<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> ps<span class=\"token operator\">-&gt;<\/span>num<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span>ps<span class=\"token operator\">-&gt;<\/span>data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token function\">print1<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u4f20\u7ed3\u6784\u4f53 <\/span><br \/>\n <span class=\"token function\">print2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>s<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u4f20\u5730\u5740 <\/span><br \/>\n <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4e0a\u2faf\u7684 print1 \u548c print2 \u51fd\u6570\u54ea\u4e2a\u597d\u4e9b&#xff1f;<\/p>\n<p>\u7b54\u6848\u662f&#xff1a;\u9996\u9009print2\u51fd\u6570\u3002<\/p>\n<p>\u539f\u56e0&#xff1a;<\/p>\n<p>\u51fd\u6570\u4f20\u53c2\u7684\u65f6\u5019&#xff0c;\u53c2\u6570\u662f\u9700\u8981\u538b\u6808&#xff0c;\u4f1a\u6709\u65f6\u95f4\u548c\u7a7a\u95f4\u4e0a\u7684\u7cfb\u7edf\u5f00\u9500\u3002 \u5982\u679c\u4f20\u9012\u2f00\u4e2a\u7ed3\u6784\u4f53\u5bf9\u8c61\u7684\u65f6\u5019&#xff0c;\u7ed3\u6784\u4f53\u8fc7\u2f24&#xff0c;\u53c2\u6570\u538b\u6808\u7684\u7684\u7cfb\u7edf\u5f00\u9500\u2f50\u8f83\u2f24&#xff0c;\u6240\u4ee5\u4f1a\u5bfc\u81f4\u6027\u80fd\u7684\u4e0b\u964d\u3002 \u7ed3\u8bba&#xff1a;\u7ed3\u6784\u4f53\u4f20\u53c2\u7684\u65f6\u5019&#xff0c;\u8981\u4f20\u7ed3\u6784\u4f53\u7684\u5730\u5740\u3002<\/p>\n<h3>4.\u7ed3\u6784\u4f53\u5b9e\u73b0\u4f4d\u6bb5<\/h3>\n<h4>4.1 \u4ec0\u4e48\u662f\u4f4d\u6bb5<\/h4>\n<p>\u4f4d\u6bb5\u7684\u58f0\u660e\u548c\u7ed3\u6784\u662f\u7c7b\u4f3c\u7684&#xff0c;\u6709\u4e24\u4e2a\u4e0d\u540c&#xff1a;<\/p>\n<p>1.\u4f4d\u6bb5\u7684\u6210\u5458\u5fc5\u987b\u662f int\u3001unsigned int \u6216signed int &#xff0c;\u5728C99\u4e2d\u4f4d\u6bb5\u6210\u5458\u7684\u7c7b\u578b\u4e5f\u53ef\u4ee5 \u9009\u62e9\u5176\u4ed6\u6574\u578b\u5bb6\u65cf\u7c7b\u578b&#xff0c;\u2f50\u5982&#xff1a;char\u3002<\/p>\n<p>2.\u4f4d\u6bb5\u7684\u6210\u5458\u540d\u540e\u8fb9\u6709\u2f00\u4e2a\u5192\u53f7\u548c\u2f00\u4e2a\u6570\u5b57\u3002<\/p>\n<p>\u2f50\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">A<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">int<\/span> _a<span class=\"token operator\">:<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u53ea\u5360\u4e24\u4e2abit\u4f4d<\/span><br \/>\n <span class=\"token keyword\">int<\/span> _b<span class=\"token operator\">:<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> _c<span class=\"token operator\">:<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> _d<span class=\"token operator\">:<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">s<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">int<\/span> _a<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/4\u5b57\u8282 32bit \u53ef\u4ee5\u8282\u770130\u4e2a\u5b57\u8282<\/span><br \/>\n  <span class=\"token keyword\">int<\/span> _b<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">int<\/span> _c<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">int<\/span> _d<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/00   0<\/span><br \/>\n    <span class=\"token comment\">\/\/01   1<\/span><br \/>\n    <span class=\"token comment\">\/\/10   2<\/span><br \/>\n    <span class=\"token comment\">\/\/11   3<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>A\u5c31\u662f\u2f00\u4e2a\u4f4d\u6bb5\u7c7b\u578b\u3002<\/p>\n<p>\u4f4d\u6bb5\u662f\u4e13\u95e8\u7528\u6765\u8282\u7701\u5185\u5b58\u7684<\/p>\n<p>\u90a3\u4f4d\u6bb5A\u6240\u5360\u5185\u5b58\u7684\u2f24\u2f29\u662f\u591a\u5c11&#xff1f;<\/p>\n<p>    <span class=\"token comment\">\/\/ %zd            8\u5b57\u8282<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">A<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042623-6839336f565e3.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>4.2 \u4f4d\u6bb5\u7684\u5185\u5b58\u5206\u914d<\/h4>\n<p>1.\u4f4d\u6bb5\u7684\u6210\u5458\u53ef\u4ee5\u662f int unsigned int signed int \u6216\u8005\u662f char \u7b49\u7c7b\u578b<\/p>\n<p>2.\u4f4d\u6bb5\u7684\u7a7a\u95f4\u4e0a\u662f\u6309\u7167\u9700\u8981\u4ee5**4\u4e2a\u5b57\u8282&#xff08; int &#xff09;\u6216\u80051\u4e2a\u5b57\u8282&#xff08; char &#xff09;**\u7684\u2f45\u5f0f\u6765\u5f00\u8f9f\u7684\u3002<\/p>\n<p>3.\u4f4d\u6bb5\u6d89\u53ca\u5f88\u591a\u4e0d\u786e\u5b9a\u56e0\u7d20&#xff0c;\u4f4d\u6bb5\u662f\u4e0d\u8de8\u5e73\u53f0\u7684&#xff0c;\u6ce8\u91cd\u53ef\u79fb\u690d\u7684\u7a0b\u5e8f\u5e94\u8be5\u907f\u514d\u4f7f\u2f64\u4f4d\u6bb5\u3002<\/p>\n<p><span class=\"token comment\">\/\/\u2f00\u4e2a\u4f8b\u2f26 <\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">char<\/span> a<span class=\"token operator\">:<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">char<\/span> b<span class=\"token operator\">:<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">char<\/span> c<span class=\"token operator\">:<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">char<\/span> d<span class=\"token operator\">:<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">S<\/span> s <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\ns<span class=\"token punctuation\">.<\/span>a <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/00001010<\/span><br \/>\ns<span class=\"token punctuation\">.<\/span>b <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">12<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/00001100<\/span><br \/>\ns<span class=\"token punctuation\">.<\/span>c <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/00000011<\/span><br \/>\ns<span class=\"token punctuation\">.<\/span>d <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/00000100<\/span><br \/>\n<span class=\"token comment\">\/\/\u7a7a\u95f4\u662f\u5982\u4f55\u5f00\u8f9f\u7684&#xff1f; <\/span><\/p>\n<p>\u5728\u8fd9\u4e4b\u524d\u6211\u4eec\u5148\u8981\u4e86\u89e3\u4e00\u4e0b\u5185\u5b58\u7684\u4f7f\u7528\u987a\u5e8f<\/p>\n<p>1.\u7533\u8bf7\u5230\u7684\u4e00\u5757\u5185\u5b58\u4e2d&#xff0c;\u4ece\u5de6\u5411\u53f3\u4f7f\u7528&#xff0c;\u8fd8\u662f\u4ece\u53f3\u5411\u5de6\u4f7f\u7528&#xff0c;\u662f\u4e0d\u786e\u5b9a\u7684 vs\u662f\u4ece\u53f3\u5411\u5de6<\/p>\n<p>2.\u5269\u4f59\u7a7a\u95f4&#xff0c;\u4e0d\u662f\u4e0b\u4e00\u4e2a\u6210\u5458\u4f7f\u7528\u7684\u65f6\u5019&#xff0c;\u662f\u6d6a\u8d39\u5462&#xff1f;\u8fd8\u662f\u7ee7\u7eed\u4f7f\u7528&#xff1f; vs\u662f\u6d6a\u8d39<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042623-6839336f78b68.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042623-6839336fd9d46.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>4.3 \u4f4d\u6bb5\u7684\u8de8\u5e73\u53f0\u95ee\u9898<\/h4>\n<li>int\u4f4d\u6bb5\u88ab\u5f53\u6210\u6709\u7b26\u53f7\u6570\u8fd8\u662f\u2f46\u7b26\u53f7\u6570\u662f\u4e0d\u786e\u5b9a\u7684\u3002<\/li>\n<li>\u4f4d\u6bb5\u4e2d\u6700\u2f24\u4f4d\u7684\u6570\u2f6c\u4e0d\u80fd\u786e\u5b9a\u3002&#xff08;16\u4f4d\u673a\u5668\u6700\u2f2416&#xff0c;32\u4f4d\u673a\u5668\u6700\u2f2432&#xff0c;\u5199\u621027&#xff0c;\u572816\u4f4d\u673a\u5668\u4f1a\u51fa\u95ee\u9898\u3002<\/li>\n<li>\u4f4d\u6bb5\u4e2d\u7684\u6210\u5458\u5728\u5185\u5b58\u4e2d\u4ece\u5de6\u5411\u53f3\u5206\u914d&#xff0c;\u8fd8\u662f\u4ece\u53f3\u5411\u5de6\u5206\u914d&#xff0c;\u6807\u51c6\u5c1a\u672a\u5b9a\u4e49\u3002<\/li>\n<li>\u5f53\u2f00\u4e2a\u7ed3\u6784\u5305\u542b\u4e24\u4e2a\u4f4d\u6bb5&#xff0c;\u7b2c\u2f06\u4e2a\u4f4d\u6bb5\u6210\u5458\u2f50\u8f83\u2f24&#xff0c;\u2f46\u6cd5\u5bb9\u7eb3\u4e8e\u7b2c\u2f00\u4e2a\u4f4d\u6bb5\u5269\u4f59\u7684\u4f4d\u65f6&#xff0c;\u662f\u820d\u5f03\u5269\u4f59\u7684\u4f4d\u662f\u5229\u2f64&#xff0c;\u8fd9\u662f\u4e0d\u786e\u5b9a\u7684\u3002 \u603b\u7ed3&#xff1a; \u8ddf\u7ed3\u6784\u76f8\u2f50&#xff0c;\u4f4d\u6bb5\u53ef\u4ee5\u8fbe\u5230\u540c\u6837\u7684\u6548\u679c&#xff0c;\u5e76\u4e14\u53ef\u4ee5\u5f88\u597d\u7684\u8282\u7701\u7a7a\u95f4&#xff0c;\u4f46\u662f\u6709\u8de8\u5e73\u53f0\u7684\u95ee\u9898\u5b58\u5728\u3002<\/li>\n<h4>4.4 \u4f4d\u6bb5\u7684\u5e94\u7528<\/h4>\n<p>\u4e0b\u56fe\u662f\u2f79\u7edc\u534f\u8bae\u4e2d&#xff0c;IP\u6570\u636e\u62a5\u7684\u683c\u5f0f&#xff0c;\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5176\u4e2d\u5f88\u591a\u7684\u5c5e\u6027\u53ea\u9700\u8981\u2f0f\u4e2abit\u4f4d\u5c31\u80fd\u63cf\u8ff0&#xff0c;\u8fd9\u2fa5 \u4f7f\u2f64\u4f4d\u6bb5&#xff0c;\u80fd\u591f\u5b9e\u73b0\u60f3\u8981\u7684\u6548\u679c&#xff0c;\u4e5f\u8282\u7701\u4e86\u7a7a\u95f4&#xff0c;\u8fd9\u6837\u2f79\u7edc\u4f20\u8f93\u7684\u6570\u636e\u62a5\u2f24\u2f29\u4e5f\u4f1a\u8f83\u2f29\u2f00\u4e9b&#xff0c;\u5bf9\u2f79\u7edc \u7684\u7545\u901a\u662f\u6709\u5e2e\u52a9\u7684\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042624-683933700cd03.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>4.5 \u4f4d\u6bb5\u4f7f\u7528\u7684\u6ce8\u610f\u4e8b\u9879<\/h4>\n<p>**\u4f4d\u6bb5\u7684\u2f0f\u4e2a\u6210\u5458\u5171\u6709\u540c\u2f00\u4e2a\u5b57\u8282&#xff0c;\u8fd9\u6837\u6709\u4e9b\u6210\u5458\u7684\u8d77\u59cb\u4f4d\u7f6e\u5e76\u4e0d\u662f\u67d0\u4e2a\u5b57\u8282\u7684\u8d77\u59cb\u4f4d\u7f6e&#xff0c;\u90a3\u4e48\u8fd9\u4e9b\u4f4d\u7f6e\u5904\u662f\u6ca1\u6709\u5730\u5740\u7684\u3002\u5185\u5b58\u4e2d\u6bcf\u4e2a\u5b57\u8282\u5206\u914d\u2f00\u4e2a\u5730\u5740&#xff0c;\u2f00\u4e2a\u5b57\u8282\u5185\u90e8\u7684bit\u4f4d\u662f\u6ca1\u6709\u5730\u5740\u7684\u3002 \u6240\u4ee5\u4e0d\u80fd\u5bf9\u4f4d\u6bb5\u7684\u6210\u5458\u4f7f\u2f64&amp;\u64cd\u4f5c\u7b26&#xff0c;\u8fd9\u6837\u5c31\u4e0d\u80fd\u4f7f\u2f64scanf\u76f4\u63a5\u7ed9\u4f4d\u6bb5\u7684\u6210\u5458\u8f93\u2f0a\u503c&#xff0c;**\u53ea\u80fd\u662f\u5148\u8f93\u2f0a\u653e\u5728\u2f00\u4e2a\u53d8\u91cf\u4e2d&#xff0c;\u7136\u540e\u8d4b\u503c\u7ed9\u4f4d\u6bb5\u7684\u6210\u5458\u3002<\/p>\n<p>\u4e00\u4e2a\u5b57\u8282\u4e00\u4e2a\u5730\u5740<\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">A<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">int<\/span> _a <span class=\"token operator\">:<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> _b <span class=\"token operator\">:<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> _c <span class=\"token operator\">:<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">int<\/span> _d <span class=\"token operator\">:<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">A<\/span> sa <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>sa<span class=\"token punctuation\">.<\/span>_b<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u8fd9\u662f\u9519\u8bef\u7684 <\/span><\/p>\n<p> <span class=\"token comment\">\/\/\u6b63\u786e\u7684\u2f70\u8303 <\/span><br \/>\n <span class=\"token keyword\">int<\/span> b <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>b<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n sa<span class=\"token punctuation\">.<\/span>_b <span class=\"token operator\">&#061;<\/span> b<span class=\"token punctuation\">;<\/span><br \/>\n <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.9k\u6b21\uff0c\u70b9\u8d5e89\u6b21\uff0c\u6536\u85cf63\u6b21\u3002\u7ed3\u6784\u4f53\u7c7b\u578b\u58f0\u660e \u7ed3\u6784\u4f53\u5185\u5b58\u5bf9\u9f50 \u7ed3\u6784\u4f53\u4f20\u53c2 \u7ed3\u6784\u4f53\u5b9e\u73b0\u4f4d\u6bb5<\/p>\n","protected":false},"author":2,"featured_media":40876,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,174,190,305,427,124],"topic":[],"class_list":{"0":"post-40885","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-server","8":"tag-c","10":"tag-190","11":"tag-305","12":"tag-427","13":"tag-124"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010C\/C++\u3011\u81ea\u5b9a\u4e49\u7c7b\u578b\uff1a\u7ed3\u6784\u4f53 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/40885.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010C\/C++\u3011\u81ea\u5b9a\u4e49\u7c7b\u578b\uff1a\u7ed3\u6784\u4f53 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.9k\u6b21\uff0c\u70b9\u8d5e89\u6b21\uff0c\u6536\u85cf63\u6b21\u3002\u7ed3\u6784\u4f53\u7c7b\u578b\u58f0\u660e \u7ed3\u6784\u4f53\u5185\u5b58\u5bf9\u9f50 \u7ed3\u6784\u4f53\u4f20\u53c2 \u7ed3\u6784\u4f53\u5b9e\u73b0\u4f4d\u6bb5\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/40885.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-30T04:26:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250530042621-6839336d47a68.jpg\" \/>\n<meta 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