{"id":4360,"date":"2025-10-09T11:34:49","date_gmt":"2025-10-09T03:34:49","guid":{"rendered":"http:\/\/dcdc.club\/index.php\/2025\/10\/09\/%e7%bc%96%e7%a8%8b\/"},"modified":"2025-10-09T11:57:33","modified_gmt":"2025-10-09T03:57:33","slug":"%e7%bc%96%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/dcdc.club\/index.php\/2025\/10\/09\/%e7%bc%96%e7%a8%8b\/","title":{"rendered":"\u7f16\u7a0b"},"content":{"rendered":"<p>float: \u5355\u7cbe\u5ea6\uff08\u7ea67\u4f4d\u6709\u6548\u6570\u5b57\uff09, 4\u5b57\u8282\uff0832\u4f4d\uff09, \u8f83\u5feb\u3002<\/p>\n<p>double: \u53cc\u7cbe\u5ea6\uff08\u7ea616\u4f4d\u6709\u6548\u6570\u5b57\uff09, 8\u5b57\u8282\uff0864\u4f4d\uff09, \u8f83\u6162\u3002<\/p>\n<p>float x = 52.55;<br \/>double y = 18.6;<\/p>\n<p>52.55\u548c18.6\u8fd9\u4e24\u4e2a\u6570\u5b57\u9ed8\u8ba4\u90fd\u662fdouble\u7c7b\u578b\u7684\uff0c\u5c0652.55\u8d4b\u503c\u7ed9x\uff0c\u5fc5\u987b\u5148\u4ecedouble\u7c7b\u578b\u8f6c\u6362\u4e3afloat\u7c7b\u578b\uff0c\u800c\u5c0618.6\u8d4b\u503c\u7ed9y\u5c31\u4e0d\u7528\u8f6c\u6362\u4e86\u3002<\/p>\n<p>\u5982\u679c\u4e0d\u60f3\u8ba9\u6570\u5b57\u4f7f\u7528\u9ed8\u8ba4\u7684\u7c7b\u578b\uff0c\u5c31\u53ef\u4ee5\u7ed9\u6570\u5b57\u52a0\u4e0a\u540e\u7f00\uff0c\u624b\u52a8\u6307\u660e\u7c7b\u578b\uff1a<\/p>\n<p>\u5728\u6574\u6570\u540e\u9762\u7d27\u8ddfl\u6216\u8005L\uff08\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff09\u8868\u660e\u8be5\u6570\u5b57\u662flong\u7c7b\u578b\u3002<\/p>\n<p>\u5728\u5c0f\u6570\u540e\u9762\u7d27\u8ddff\u6216\u8005F\uff08\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff09\u8868\u660e\u8be5\u6570\u5b57\u662ffloat\u7c7b\u578b\u3002<\/p>\n<p>float x = 52.55f;<\/p>\n<p>\u4ee3\u7801\u4e2d\u7684\u5c0f\u6570\u5e38\u6570\uff0c\u5728\u6ca1\u6709\u592a\u9ad8\u7684\u7cbe\u5ea6\u9700\u6c42\u65f6\uff0c\u9700\u8981\u52a0f\u540e\u7f00\uff0c\u4ee5\u51cf\u8f7b\u8ba1\u7b97\u91cf\u3002<\/p>\n<p>float a = 1.1f;<\/p>\n<p>float b = 3.141592f;<\/p>\n<p>a = b * 99.99f;<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>float: \u5355\u7cbe\u5ea6\uff08\u7ea67\u4f4d\u6709\u6548\u6570\u5b57\uff09, 4\u5b57\u8282\uff0832\u4f4d\uff09, \u8f83\u5feb\u3002 double: \u53cc\u7cbe\u5ea6\uff08\u7ea616\u4f4d\u6709\u6548\u6570\u5b57 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[21],"tags":[],"class_list":["post-4360","post","type-post","status-publish","format-standard","hentry","category-c-c"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/posts\/4360","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/comments?post=4360"}],"version-history":[{"count":5,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/posts\/4360\/revisions"}],"predecessor-version":[{"id":4365,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/posts\/4360\/revisions\/4365"}],"wp:attachment":[{"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/media?parent=4360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/categories?post=4360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/tags?post=4360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}