{"id":395,"date":"2023-11-28T07:27:04","date_gmt":"2023-06-10T00:02:01","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/c%e4%b8%ad%e7%9a%84%e9%80%80%e5%87%ba%e5%87%bd%e6%95%b0\/"},"modified":"2025-08-02T04:00:31","modified_gmt":"2025-08-01T20:00:31","slug":"c%e4%b8%ad%e7%9a%84%e9%80%80%e5%87%ba%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/c%e4%b8%ad%e7%9a%84%e9%80%80%e5%87%ba%e5%87%bd%e6%95%b0\/","title":{"rendered":"C++\u9000\u51fa\u51fd\u6570\u8be6\u89e3\uff1aexit()\u3001abort()\u4e0ereturn\u7528\u6cd5\u6307\u5357"},"content":{"rendered":"<h2>\u4ecb\u7ecd<\/h2>\n<p>\u4eca\u5929\u6211\u4eec\u5c06\u5b66\u4e60C++\u4e2d\u7684exit()\u51fd\u6570\u3002\u6211\u4eec\u77e5\u9053\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684break\u51fd\u6570\u6765\u8df3\u51fa\u5faa\u73af\u3002\u7c7b\u4f3c\u5730\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528exit()\u51fd\u6570\u6765\u9000\u51fa\u6574\u4e2aC++\u7a0b\u5e8f\u3002<\/p>\n<p>\u60f3\u8c61\u4e00\u79cd\u60c5\u51b5\uff0c\u5373\u5728\u7a0b\u5e8f\u4e2d\u9700\u8981\u5f97\u51fa\u7ed3\u8bba\u3002\u5728\u6574\u4e2a\u7a0b\u5e8f\u7f16\u8bd1\u6216\u8bc4\u4f30\u4e4b\u524d\uff0c\u4f60\u83b7\u5f97\u7ed3\u679c\u5e76\u5f97\u51fa\u4e86\u4e00\u4e9b\u7ed3\u8bba\u3002<\/p>\n<p>\u5f53\u4f60\u83b7\u5f97\u6240\u9700\u7684\u4fe1\u606f\u6216\u7ed3\u679c\u540e\uff0c\u4f60\u5982\u4f55\u7acb\u5373\u7ec8\u6b62\u7a0b\u5e8f\uff1f<\/p>\n<p>\u4e0a\u8ff0\u95ee\u9898\u7684\u7b54\u6848\u662f\u4f7f\u7528C++\u4e2d\u7684\u5185\u7f6eexit()\u51fd\u6570\u3002\u6240\u4ee5\u8ba9\u6211\u4eec\u66f4\u4ed4\u7ec6\u5730\u770b\u4e00\u4e0b\u8fd9\u4e2a\u51fd\u6570\u4ee5\u53ca\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<h2>\u5728C++\u4e2d\uff0cexit()\u51fd\u6570\u7684\u5b9a\u4e49\u662f\u4ec0\u4e48\uff1f<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/6564859ca4b2f92e6c730a78\/6-0.png\" alt=\"Exit\u51fd\u6570\u7684\u6d41\u7a0b\u56fe\u8868\u793a\" \/><\/div>\n<p>\u7406\u8bba\u4e0a\uff0cC++\u4e2d\u7684exit()\u51fd\u6570\u4f1a\u5bfc\u81f4\u76f8\u5e94\u7684\u7a0b\u5e8f\u5728\u51fd\u6570\u88ab\u9047\u5230\u65f6\u7acb\u5373\u7ec8\u6b62\uff0c\u65e0\u8bba\u5b83\u5728\u7a0b\u5e8f\u6e05\u5355\u4e2d\u51fa\u73b0\u7684\u4f4d\u7f6e\u5982\u4f55\u3002\u8be5\u51fd\u6570\u5728stdlib.h\u5934\u6587\u4ef6\u4e0b\u8fdb\u884c\u4e86\u5b9a\u4e49\uff0c\u5728\u4f7f\u7528exit()\u51fd\u6570\u65f6\u5fc5\u987b\u5305\u62ec\u8be5\u5934\u6587\u4ef6\u3002<\/p>\n<h2>C++\u4e2dexit()\u51fd\u6570\u7684\u8bed\u6cd5<\/h2>\n<p>\u4f7f\u7528exit()\u51fd\u6570\u7684\u8bed\u6cd5\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span> exit_value <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0cexit_value\u662f\u7a0b\u5e8f\u6210\u529f\u7ec8\u6b62\u540e\u4f20\u9012\u7ed9\u64cd\u4f5c\u7cfb\u7edf\u7684\u503c\u3002\u8fd9\u4e2a\u503c\u53ef\u4ee5\u5728\u6279\u5904\u7406\u6587\u4ef6\u4e2d\u8fdb\u884c\u6d4b\u8bd5\uff0c\u5176\u4e2dERROR LEVEL\u7ed9\u51fa\u4e86exit()\u51fd\u6570\u63d0\u4f9b\u7684\u8fd4\u56de\u503c\u3002\u901a\u5e38\uff0c\u503c\u4e3a0\u8868\u793a\u6210\u529f\u7ec8\u6b62\uff0c\u800c\u4efb\u4f55\u5176\u4ed6\u6570\u5b57\u5219\u8868\u793a\u51fa\u73b0\u4e86\u9519\u8bef\u3002<\/p>\n<h2>C++\u4e2dexit()\u51fd\u6570\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>\u8bb0\u4f4f\uff0c\u51fd\u6570exit()\u4ece\u4e0d\u8fd4\u56de\u4efb\u4f55\u503c\u3002\u5b83\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u6267\u884c\u7ec8\u6b62\u7a0b\u5e8f\u7684\u5e38\u89c4\u6e05\u7406\u5de5\u4f5c\u3002<\/p>\n<p>\u540c\u65f6,\u5728C++\u4e2d\u8c03\u7528\u6b64\u51fd\u6570\u65f6\uff0c\u81ea\u52a8\u5b58\u50a8\u5bf9\u8c61\u4e0d\u4f1a\u88ab\u9500\u6bc1\u3002<\/p>\n<p>\u8bf7\u4ed4\u7ec6\u770b\u4e0b\u9762\u7684\u4f8b\u5b50\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span>\r\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">{<\/span>\r\n\t<span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span>\r\n\tcout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"\u8bf7\u8f93\u5165\u4e00\u4e2a\u975e\u96f6\u503c\uff1a\"<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/\u7528\u6237\u8f93\u5165<\/span>\r\n\tcin<span class=\"token operator\">&gt;&gt;<\/span>i<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span>    <span class=\"token comment\">\/\/ \u68c0\u67e5\u7528\u6237\u8f93\u5165\u662f\u5426\u4e3a\u975e\u96f6\u503c<\/span>\r\n\t<span class=\"token punctuation\">{<\/span>\r\n\t\tcout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"\u8f93\u5165\u6709\u6548\u3002\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\t<span class=\"token keyword\">else<\/span>\r\n\t<span class=\"token punctuation\">{<\/span>\r\n\t\tcout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"\u9519\u8bef\uff01\"<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/\u5982\u679c\u503c\u4e3a0\uff0c\u7a0b\u5e8f\u9000\u51fa<\/span>\r\n\t\t<span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\tcout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"\u8f93\u5165\u503c\u4e3a\uff1a\"<\/span><span class=\"token operator\">&lt;&lt;<\/span>i<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre class=\"post-pre\"><code>\u8bf7\u8f93\u5165\u4e00\u4e2a\u975e\u96f6\u503c\uff1a<span class=\"token number\">0<\/span>\r\n\u9519\u8bef<span class=\"token operator\">!<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li>\u7531\u4e8e\u4e0a\u8ff0\u4ee3\u7801\u4e2d\u7528\u6237\u8f93\u5165\u7684\u503c\u4e3a\u96f6(0)\uff0c\u56e0\u6b64\u6267\u884c\u4e86if-else\u8bed\u53e5\u7684else\u90e8\u5206\u3002\u968f\u540e\u7f16\u8bd1\u5668\u9047\u5230exit()\u51fd\u6570\u5e76\u7ec8\u6b62\u7a0b\u5e8f\u3002<\/li>\n<li>\u7531\u4e8e\u7a0b\u5e8f\u5df2\u7ecf\u88abexit()\u51fd\u6570\u7ec8\u6b62\uff0c\u56e0\u6b64if-else\u8bed\u53e5\u4e0b\u65b9\u7684\u6253\u5370\u8bed\u53e5\u4e0d\u4f1a\u88ab\u6267\u884c\u3002<\/li>\n<\/ul>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u6765\u770b\u53e6\u4e00\u4e2a\u793a\u4f8b\uff0c\u6211\u4eec\u8bd5\u56fe\u786e\u5b9a\u4e00\u4e2a\u6570\u5b57\u662f\u5426\u4e3a\u8d28\u6570\u3002<\/p>\n<h2>\u5728C++\u4e2d\u4f7f\u7528exit()\u51fd\u6570<\/h2>\n<p>\u4e0b\u9762\u7684\u7a0b\u5e8f\u6f14\u793a\u4e86exit()\u51fd\u6570\u7684\u4f7f\u7528\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span>\r\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">{<\/span>\r\n\t<span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">,<\/span>num<span class=\"token punctuation\">;<\/span>\r\n\tcout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"\u8bf7\u8f93\u5165\u6570\u5b57\uff1a\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\tcin<span class=\"token operator\">&gt;&gt;<\/span>num<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token operator\">=<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span>i<span class=\"token operator\">&lt;=<\/span>num<span class=\"token operator\">\/<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span>i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span>\r\n\t<span class=\"token punctuation\">{<\/span>\r\n\t\t<span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>num<span class=\"token operator\">%<\/span>i<span class=\"token operator\">==<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>\r\n\t\t<span class=\"token punctuation\">{<\/span>\r\n\t\t\tcout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"\\n\u4e0d\u662f\u8d28\u6570\uff01\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\t\t\t<span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t\t<span class=\"token punctuation\">}<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\tcout<span class=\"token operator\">&lt;&lt;<\/span><span class=\"token string\">\"\\n\u662f\u8d28\u6570\uff01\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/6564859ca4b2f92e6c730a78\/25-0.png\" alt=\"Exit\u51fd\u6570\u793a\u4f8b\u8f93\u51fa\" \/><\/div>\n<p>\u8fdb\u4e00\u6b65\u8bf4\uff0c\u5173\u4e8e\u4e0a\u8ff0\u4ee3\u7801\uff0c<\/p>\n<ul class=\"post-ul\">\n<li>\u9996\u5148\uff0c\u6211\u4eec\u83b7\u53d6\u7528\u6237\u8f93\u5165\u7684\u6570\u5b57\u3002\u6211\u4eec\u9700\u8981\u68c0\u67e5\u8fd9\u4e2a\u6570\u5b57num\u662f\u5426\u4e3a\u8d28\u6570\u3002<\/li>\n<li>\u4e4b\u540e\uff0c\u6211\u4eec\u5e94\u7528\u4e00\u4e2a\u4ece2\u5230n\/2\u7684for\u5faa\u73af\u3002\u8fd9\u662f\u56e0\u4e3a\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u6240\u6709\u6570\u5b57\u90fd\u53ef\u4ee5\u88ab1\u6574\u9664\uff0c\u800c\u4e14\u4e00\u4e2a\u6570\u4e0d\u80fd\u88ab\u5927\u4e8e\u5176\u4e00\u534a\u7684\u6570\u6574\u9664\u3002<\/li>\n<li>\u5728for\u5faa\u73af\u5185\u90e8\uff0c\u6211\u4eec\u68c0\u67e5\u8be5\u6570\u5b57\u662f\u5426\u53ef\u4ee5\u88ab\u5f53\u524d\u7684\u5faa\u73af\u8fed\u4ee3\u5668\u6574\u9664\u3002\u5982\u679c\u662f\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u5f97\u51fa\u8be5\u6570\u5b57\u4e0d\u662f\u8d28\u6570\u7684\u7ed3\u8bba\uff0c\u5e76\u4f7f\u7528exit()\u51fd\u6570\u7ec8\u6b62\u7a0b\u5e8f\u3002<\/li>\n<li>\u5426\u5219\uff0c\u5faa\u73af\u7ee7\u7eed\u68c0\u67e5\u3002\u5728\u6574\u4e2a\u5faa\u73af\u7ed3\u6784\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u6211\u4eec\u58f0\u660e\u8be5\u6570\u5b57\u4e3a\u8d28\u6570\u3002<\/li>\n<\/ul>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u8ba8\u8bba\u4e86C++\u4e2d\u5185\u7f6e\u7684exit()\u51fd\u6570\u7684\u5de5\u4f5c\u539f\u7406\u548c\u7528\u6cd5\u3002\u5b83\u88ab\u5e7f\u6cdb\u7528\u4e8e\u7ec8\u6b62\u7a0b\u5e8f\u7684\u6267\u884c\u3002<\/p>\n<p>\u5982\u6709\u4efb\u4f55\u95ee\u9898\uff0c\u8bf7\u5728\u4e0b\u65b9\u8bc4\u8bba\u3002<\/p>\n<h2>\u53c2\u8003\u8d44\u6599<\/h2>\n<ul class=\"post-ul\">\n<li>https:\/\/stackoverflow.com\/questions\/461449\/return-statement-vs-exit-in-main<\/li>\n<li>\/community\/tutorials\/c-plus-plus<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7ecd \u4eca\u5929\u6211\u4eec\u5c06\u5b66\u4e60C++\u4e2d\u7684exit()\u51fd\u6570\u3002\u6211\u4eec\u77e5\u9053\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684break\u51fd\u6570\u6765\u8df3\u51fa\u5faa\u73af\u3002\u7c7b\u4f3c\u5730\uff0c\u6211\u4eec\u8fd8 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[740,1282,1281],"class_list":["post-395","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-c","tag-exit","tag-1281"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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