{"id":106643,"date":"2026-09-17T21:08:46","date_gmt":"2026-09-17T13:08:46","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/106643.html"},"modified":"2026-09-17T21:08:46","modified_gmt":"2026-09-17T13:08:46","slug":"c%e5%bc%82%e5%b8%b8%e5%a4%84%e7%90%86%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%e5%85%a8%e8%a7%a3%e6%9e%90%ef%bc%8c%e9%9d%a2%e8%af%95%e5%bf%85%e8%80%83%e7%9a%84%e5%bc%82%e5%b8%b8%e9%a2%98%ef%bc%81","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/106643.html","title":{"rendered":"C++\u5f02\u5e38\u5904\u7406\u6700\u4f73\u5b9e\u8df5\u5168\u89e3\u6790\uff0c\u9762\u8bd5\u5fc5\u8003\u7684\u5f02\u5e38\u9898\uff01"},"content":{"rendered":"<h2>C++\u5f02\u5e38\u5904\u7406\u6700\u4f73\u5b9e\u8df5\u5168\u89e3\u6790\uff0c\u9762\u8bd5\u5fc5\u8003\u7684\u5f02\u5e38\u9898\uff01<\/h2>\n<p>\u672c\u6587\u7cfb\u7edf\u8bb2\u89e3C++\u5f02\u5e38\u5904\u7406\u7684\u6838\u5fc3\u6982\u5ff5\u3001\u6700\u4f73\u5b9e\u8df5\u548c\u9762\u8bd5\u9ad8\u9891\u8003\u70b9\uff0c\u9644\u5e26\u5927\u91cf\u4ee3\u7801\u793a\u4f8b\u548cQ&amp;A\uff0c\u52a9\u4f60\u62ff\u4e0b\u5f02\u5e38\u5904\u7406\u76f8\u5173\u9762\u8bd5\u9898\uff01<\/p>\n<h3>1. \u5f02\u5e38\u5904\u7406\u57fa\u7840<\/h3>\n<h4>1.1 try-catch-throw \u4e09\u4ef6\u5957<\/h4>\n<p>C++\u5f02\u5e38\u5904\u7406\u7684\u6838\u5fc3\u662f try\u3001catch\u3001throw \u4e09\u4e2a\u5173\u952e\u5b57\uff1a<\/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;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdexcept&gt;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">double<\/span> <span class=\"token function\">divide<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">double<\/span> b<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">==<\/span> <span class=\"token number\">0.0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        <span class=\"token keyword\">throw<\/span> std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">runtime_error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\\&#8221;\u9664\u6570\u4e0d\u80fd\u4e3a\u96f6\\&#8221;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> a <span class=\"token operator\">\/<\/span> b<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><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\">{<\/p>\n<p>   <\/span><br \/>\n    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        <span class=\"token keyword\">double<\/span> result <span class=\"token operator\">=<\/span> <span class=\"token function\">divide<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10.0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;\u7ed3\u679c: \\&#8221;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> result <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token double-colon punctuation\">::<\/span>runtime_error<span class=\"token operator\">&amp;<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span>cerr <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;\u8fd0\u884c\u65f6\u9519\u8bef: \\&#8221;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">what<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token double-colon punctuation\">::<\/span>exception<span class=\"token operator\">&amp;<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span>cerr <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;\u6807\u51c6\u5f02\u5e38: \\&#8221;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">what<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span>cerr <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;\u672a\u77e5\u5f02\u5e38\\&#8221;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n    <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 \u5f02\u5e38\u4f20\u64ad\u673a\u5236<\/h4>\n<p>\u5f53\u5f02\u5e38\u88ab\u629b\u51fa\u540e\uff0c\u7a0b\u5e8f\u4f1a\u6cbf\u7740\u8c03\u7528\u6808\u5411\u4e0a\u67e5\u627e\u5339\u914d\u7684 catch \u5757\uff1a<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">funcC<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n    <span class=\"token keyword\">throw<\/span> std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">runtime_error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\\&#8221;error from C\\&#8221;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">funcB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n    <span class=\"token function\">funcC<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e0d\u6355\u83b7\uff0c\u5f02\u5e38\u7ee7\u7eed\u5411\u4e0a\u4f20\u64ad<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">funcA<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        <span class=\"token function\">funcB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token double-colon punctuation\">::<\/span>runtime_error<span class=\"token operator\">&amp;<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;\u6355\u83b7: \\&#8221;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">what<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5728\u5f02\u5e38\u4f20\u64ad\u8fc7\u7a0b\u4e2d\uff0c\u8c03\u7528\u6808\u4e0a\u7684\u5c40\u90e8\u5bf9\u8c61\u4f1a\u88ab\u6b63\u786e\u6790\u6784\u2014\u2014\u8fd9\u5c31\u662f \u6808\u5c55\u5f00\uff08Stack Unwinding\uff09\u3002<\/p>\n<h3>2. \u6807\u51c6\u5f02\u5e38\u5e93<\/h3>\n<h4>2.1 \u5f02\u5e38\u7c7b\u7ee7\u627f\u4f53\u7cfb<\/h4>\n<p>std::exception<br \/>\n\u251c\u2500\u2500 std::logic_error<br \/>\n\u2502   \u251c\u2500\u2500 std::invalid_argument<br \/>\n\u2502   \u251c\u2500\u2500 std::out_of_range<br \/>\n\u2502   \u251c\u2500\u2500 std::length_error<br \/>\n\u2502   \u2514\u2500\u2500 std::domain_error<br \/>\n\u251c\u2500\u2500 std::runtime_error<br \/>\n\u2502   \u251c\u2500\u2500 std::overflow_error<br \/>\n\u2502   \u251c\u2500\u2500 std::underflow_error<br \/>\n\u2502   \u2514\u2500\u2500 std::range_error<br \/>\n\u251c\u2500\u2500 std::bad_alloc<br \/>\n\u251c\u2500\u2500 std::bad_cast<br \/>\n\u251c\u2500\u2500 std::bad_exception<br \/>\n\u2514\u2500\u2500 std::bad_function_call<\/p>\n<h4>2.2 \u5e38\u7528\u6807\u51c6\u5f02\u5e38<\/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;stdexcept&gt;<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C++\u5f02\u5e38\u5904\u7406\u6700\u4f73\u5b9e\u8df5\u5168\u89e3\u6790\uff0c\u9762\u8bd5\u5fc5\u8003\u7684\u5f02\u5e38\u9898\uff01 \u672c\u6587\u7cfb\u7edf\u8bb2\u89e3C++\u5f02\u5e38\u5904\u7406\u7684\u6838\u5fc3\u6982\u5ff5\u3001\u6700\u4f73\u5b9e\u8df5\u548c\u9762\u8bd5\u9ad8\u9891\u8003\u70b9\uff0c\u9644\u5e26\u5927\u91cf\u4ee3\u7801\u793a\u4f8b\u548cQ&amp;A\uff0c\u52a9\u4f60\u62ff\u4e0b\u5f02\u5e38\u5904\u7406\u76f8\u5173\u9762\u8bd5\u9898\uff01 1. \u5f02\u5e38\u5904\u7406\u57fa\u7840<br \/>\n1.1 try-catch-throw \u4e09\u4ef6\u5957<br \/>\nC++\u5f02\u5e38\u5904\u7406\u7684\u6838\u5fc3\u662f try\u3001catch\u3001throw \u4e09\u4e2a\u5173\u952e\u5b57\uff1a<br \/>\n#include<br \/>\n#include double divide(double a, double b) {if (b == <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[96,176],"topic":[],"class_list":["post-106643","post","type-post","status-publish","format-standard","hentry","category-server","tag-96","tag-176"],"yoast_head":"<!-- This site is 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