{"id":47,"date":"2026-03-12T15:12:23","date_gmt":"2026-03-12T07:12:23","guid":{"rendered":"https:\/\/www.caldm.cn\/?p=47"},"modified":"2026-03-13T20:15:40","modified_gmt":"2026-03-13T12:15:40","slug":"c2-%e5%a4%84%e7%90%86%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/www.caldm.cn\/index.php\/2026\/03\/12\/c2-%e5%a4%84%e7%90%86%e6%95%b0%e6%8d%ae\/","title":{"rendered":"C2 \u5904\u7406\u6570\u636e"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">C++\u547d\u540d\u89c4\u5219<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u540d\u79f0\u4e2d\u53ea\u80fd\u4f7f\u7528<strong>\u5b57\u6bcd<\/strong>\u3001<strong>\u6570\u5b57<\/strong>\u548c<strong>\u4e0b\u5212\u7ebf<\/strong>\uff08<code>_<\/code>\uff09\u3002<\/li>\n\n\n\n<li>\u540d\u79f0\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26<strong>\u4e0d\u80fd\u662f\u6570\u5b57<\/strong>\u3002<\/li>\n\n\n\n<li>\u5b57\u7b26<strong>\u533a\u5206\u5927\u5c0f\u5199<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u4e0d\u80fd<\/strong>\u4f7f\u7528C++<strong>\u5173\u952e\u5b57<\/strong>\u4f5c\u4e3a\u540d\u79f0\u3002<\/li>\n\n\n\n<li><em>\u4ee5\u4e24\u4e2a\u4e0b\u5212\u7ebf\u6216\u4ee5\u4e0b\u5212\u7ebf\u548c\u5927\u5199\u5b57\u6bcd\u5f00\u5934\u7684\u540d\u79f0\u88ab\u4fdd\u7559\u7ed9\u5b9e\u73b0\u4f7f\u7528\u3002\u4ee5\u4e00\u4e2a\u4e0b\u5212\u7ebf\u5f00\u5934\u7684\u540d\u79f0\u88ab\u4fdd\u7559\u7ed9\u5b9e\u73b0\uff0c\u4f5c\u4e3a\u5168\u5c40\u6807\u8bc6\u7b26\u3002<\/em><\/li>\n\n\n\n<li>C++\u5bf9\u540d\u79f0\u7684\u957f\u5ea6\u6ca1\u6709\u9650\u5236\uff0c\u540d\u79f0\u4e2d\u6240\u6709\u7684\u5b57\u7b26\u90fd\u6709\u610f\u4e49\uff0c\u4f46\u6709\u4e9b\u5e73\u53f0\u6709\u957f\u5ea6\u9650\u5236<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u57fa\u672c\u6570\u636e\u7c7b\u578b<\/h2>\n\n\n\n<p>\u57fa\u672c\u6570\u636e\u7c7b\u578b\u4e3b\u8981\u6709\u4e24\u5927\u7c7b\uff1a<strong>\u6574\u578b<\/strong>\u548c<strong>\u6d6e\u70b9\u578b<\/strong>\u3002\u6574\u578b\u4e2d\u4e3b\u8981\u6709<code>short<\/code>\u3001<code>int<\/code>\u3001<code>long<\/code>\u3001<code>long long<\/code>\uff0c\u8fd9\u4e9b\u90fd\u662f\u5e26\u7b26\u53f7\u7c7b\u578b\uff0c\u80fd\u591f\u8868\u793a\u6b63\u8d1f\uff0c\u5728\u8fd9\u4e9b\u7c7b\u578b\u524d\u52a0<code>unsigned<\/code>\u5c31\u662f\u65e0\u7b26\u53f7\u7c7b\u578b\uff0c<code>unsigned short<\/code>\u3001<code><code>unsigned <\/code>int<\/code>\uff08\u6216<code>unsigned<\/code>\uff09\u3001<code><code>unsigned<\/code> long<\/code>\u3001<code><code>unsigned<\/code> long long<\/code>\u3002<\/p>\n\n\n\n<p>\u6d6e\u70b9\u578b\u4e3b\u8981\u6709\u4e09\u7c7b\uff0c\u5206\u522b\u662f<code>float<\/code>\u3001<code>double<\/code>\u3001<code>long double<\/code>\uff08C90\u65b0\u589e\uff09<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6574\u578b\u5b57\u9762\u91cf\u7684\u8fdb\u5236\u8868\u793a<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8fdb\u5236<\/th><th>\u8868\u793a\u65b9\u5f0f<\/th><\/tr><\/thead><tbody><tr><td>\u4e8c\u8fdb\u5236<\/td><td>\u524d\u4e24\u4f4d\u4e3a <code>0b<\/code>\u6216 <code>0B<\/code><\/td><\/tr><tr><td>\u516b\u8fdb\u5236<\/td><td>\u7b2c\u4e00\u4f4d\u6570\u5b57\u4e3a <code>0<\/code>\uff0c\u7b2c\u4e8c\u4f4d\u6570\u5b57\u4e3a <code>1~7<\/code><\/td><\/tr><tr><td>\u5341\u8fdb\u5236<\/td><td>\u7b2c\u4e00\u4f4d\u6570\u5b57\u4e3a <code>0~9<\/code><\/td><\/tr><tr><td>\u5341\u516d\u8fdb\u5236<\/td><td>\u524d\u4e24\u4f4d\u4e3a <code>0x<\/code>\u6216 <code>0X<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">C++\u5982\u4f55\u786e\u5b9a\u5e38\u91cf\u7684\u7c7b\u578b<\/h2>\n\n\n\n<p>\u5bf9\u4e8e<strong>\u5341\u8fdb\u5236<\/strong>\u5b57\u9762\u503c\uff0cC++\u4ece<code>int<\/code>\u3001<code>long<\/code>\u3001<code>long long<\/code>\u4e2d\u9009\u62e9\u80fd\u5b58\u50a8\u8be5\u5e38\u91cf\u7684<strong>\u6700\u5c0f\u7c7b\u578b<\/strong>\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e<strong>\u516b\u8fdb\u5236<\/strong>\u548c<strong>\u5341\u516d\u8fdb\u5236<\/strong>\u5b57\u9762\u503c\uff0cC++\u4f1a\u4ece<code>int<\/code>\u3001<code>unsigned int<\/code>\u3001<code>long<\/code>\u3001<code><code>unsigned <\/code>long<\/code>\u3001<code>long<\/code>\u3001<code>long long<\/code>\u3001<code>unsigned long long<\/code>\u4e2d\u9009\u62e9\u80fd\u5b58\u50a8\u8be5\u5e38\u91cf\u7684<strong>\u6700\u5c0f\u7c7b\u578b<\/strong>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">char \u7c7b\u578b<\/h2>\n\n\n\n<p><code>char<\/code>\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u65e2\u4e0d\u662f\u6ca1\u6709\u7b26\u53f7\uff0c\u4e5f\u4e0d\u662f\u6709\u7b26\u53f7\u3002\u662f\u5426\u6709\u7b26\u53f7\u7531C++\u5b9e\u73b0\u51b3\u5b9a\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u5c06<code>char<\/code>\u770b\u505a\u6570\u503c\u7c7b\u578b\uff0c\u90a3\u4e48<code>char<\/code>\u662f\u5426\u6709\u7b26\u53f7\u7684\u5dee\u5f02\u5c31\u6bd4\u8f83\u91cd\u8981\u4e86\u3002<\/p>\n\n\n\n<p><code>signed char<\/code>\u80fd\u8868\u793a-128\u5230127\uff0c\u800c<code>unsigned char<\/code>\u80fd\u8868\u793a0\u5230255<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">printf\u8f6c\u6362\u7b26<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8f6c\u6362\u7b26<\/th><th>\u610f\u4e49<\/th><\/tr><\/thead><tbody><tr><td>a, A<\/td><td>\u4ee5<strong>\u5341\u516d\u8fdb\u5236<\/strong>\u5f62\u5f0f\u8f93\u51fa\u6d6e\u70b9\u6570(C99 \u65b0\u589e)\u3002<\/td><\/tr><tr><td>x, X<\/td><td>\u4ee5<strong>\u5341\u516d\u8fdb\u5236<\/strong>\u5f62\u5f0f\u8f93\u51fa\u65e0\u7b26\u53f7\u6574\u6570(\u4e0d\u8f93\u51fa\u524d\u7f00Ox)<\/td><\/tr><tr><td>d<\/td><td>\u4ee5<strong>\u5341\u8fdb\u5236<\/strong>\u5f62\u5f0f\u8f93\u51fa\u5e26\u7b26\u53f7\u6574\u6570(\u6b63\u6570\u4e0d\u8f93\u51fa\u7b26\u53f7)<\/td><\/tr><tr><td>u<\/td><td>\u4ee5\u5341\u8fdb\u5236\u5f62\u5f0f\u8f93\u51fa\u65e0\u7b26\u53f7\u6574\u6570<\/td><\/tr><tr><td>o<\/td><td>\u4ee5<strong>\u516b\u8fdb\u5236<\/strong>\u5f62\u5f0f\u8f93\u51fa\u65e0\u7b26\u53f7\u6574\u6570(\u4e0d\u8f93\u51fa\u524d\u7f000)<\/td><\/tr><tr><td>f<\/td><td>\u4ee5<strong>\u5c0f\u6570\u5f62\u5f0f<\/strong>\u8f93\u51fa\u5355\u3001\u53cc\u7cbe\u5ea6\u5b9e\u6570<\/td><\/tr><tr><td>e, E<\/td><td>\u4ee5<strong>\u6307\u6570\u5f62\u5f0f<\/strong>\u8f93\u51fa\u5355\u3001\u53cc\u7cbe\u5ea6\u5b9e\u6570<\/td><\/tr><tr><td>g, G<\/td><td>\u4ee5<code>%f<\/code>\u6216<code>%e<\/code>\u4e2d\u8f83\u77ed\u7684\u8f93\u51fa\u5bbd\u5ea6\u8f93\u51fa\u5355\u3001\u53cc\u7cbe\u5ea6\u5b9e\u6570<\/td><\/tr><tr><td>lu<\/td><td>32\u4f4d\u65e0\u7b26\u53f7\u6574\u6570<\/td><\/tr><tr><td>llu<\/td><td>64\u4f4d\u65e0\u7b26\u53f7\u6574\u6570<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">\u8ddf\u5f62\u5f0f\u6709\u5173\u7684<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8f6c\u6362\u7b26<\/th><th>\u610f\u4e49<\/th><\/tr><\/thead><tbody><tr><td>c<\/td><td>\u8f93\u51fa\u5355\u4e2a\u5b57\u7b26<\/td><\/tr><tr><td>s<\/td><td>\u8f93\u51fa\u5b57\u7b26\u4e32<\/td><\/tr><tr><td>p<\/td><td>\u8f93\u51fa\u6307\u9488\u5730\u5740<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">\u4e0d\u662f\u6570\u5b57\u7c7b\u578b\u7684<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>C++\u547d\u540d\u89c4\u5219 \u57fa\u672c\u6570\u636e\u7c7b\u578b \u57fa\u672c\u6570\u636e\u7c7b\u578b\u4e3b\u8981\u6709\u4e24\u5927\u7c7b\uff1a\u6574\u578b\u548c\u6d6e\u70b9\u578b\u3002\u6574\u578b\u4e2d\u4e3b\u8981\u6709short\u3001int\u3001long [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[11],"class_list":["post-47","post","type-post","status-publish","format-standard","hentry","category-c-2","tag-c-2"],"_links":{"self":[{"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/posts\/47","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/comments?post=47"}],"version-history":[{"count":3,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/posts\/47\/revisions"}],"predecessor-version":[{"id":63,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/posts\/47\/revisions\/63"}],"wp:attachment":[{"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/media?parent=47"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/categories?post=47"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.caldm.cn\/index.php\/wp-json\/wp\/v2\/tags?post=47"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}