{"id":3462,"date":"2024-11-10T16:39:54","date_gmt":"2024-11-10T08:39:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3462\/"},"modified":"2024-11-10T16:39:54","modified_gmt":"2024-11-10T08:39:54","slug":"js-%e5%a6%82%e4%bd%95-0-00-%e8%bf%90%e7%ae%97","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3462\/","title":{"rendered":"js \u5982\u4f55 0.00 \u8fd0\u7b97"},"content":{"rendered":"<blockquote><p>\n  javascript \u4e2d\u5b9e\u73b0 0.00 \u8fd0\u7b97\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 tofixed() \u65b9\u6cd5\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u5e76\u6307\u5b9a\u5c0f\u6570\u70b9\u540e\u4fdd\u7559 2 \u4f4d\u5c0f\u6570\u3002\u4f7f\u7528 math.round() \u65b9\u6cd5\u5c06\u6570\u5b57\u56db\u820d\u4e94\u5165\u5230\u6700\u63a5\u8fd1\u7684\u6574\u6570\uff0c\u518d\u9664\u4ee5 100\u3002\u4f7f\u7528\u4e58\u6cd5\u548c\u9664\u6cd5\u5c06\u6570\u5b57\u4e58\u4ee5 100\uff0c\u7136\u540e\u518d\u9664\u4ee5 100\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/08\/2024110812512489235.jpg\" class=\"aligncenter\" title=\"js \u5982\u4f55 0.00 \u8fd0\u7b97\u63d2\u56fe\" alt=\"js \u5982\u4f55 0.00 \u8fd0\u7b97\u63d2\u56fe\" \/><\/p>\n<p><strong>JS \u4e2d\u5982\u4f55\u5b9e\u73b0 0.00 \u8fd0\u7b97<\/strong><\/p>\n<p>\u5728 JavaScript \u4e2d\uff0c\u5c0f\u6570\u53ef\u4ee5\u901a\u8fc7\u70b9\u53f7 (.) \u8868\u793a\u3002\u8981\u5b9e\u73b0 0.00 \u8fd0\u7b97\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528toFixed() \u65b9\u6cd5<\/strong><\/p>\n<p>toFixed() \u65b9\u6cd5\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u5e76\u6307\u5b9a\u5c0f\u6570\u70b9\u540e\u8981\u4fdd\u7559\u7684\u5c0f\u6570\u4f4d\u6570\u3002\u5bf9\u4e8e 0.00 \u8fd0\u7b97\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>let number = 0.00123456;\nnumber = number.toFixed(2); \/\/ \u8f93\u51fa \"0.00\"<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>2. \u4f7f\u7528Math.round() \u65b9\u6cd5<\/strong><\/p>\n<p>Math.round() \u65b9\u6cd5\u5bf9\u6570\u5b57\u8fdb\u884c\u56db\u820d\u4e94\u5165\u3002\u5bf9\u4e8e 0.00 \u8fd0\u7b97\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>let number = 0.00123456;\nnumber = Math.round(number * 100) \/ 100; \/\/ \u8f93\u51fa \"0.00\"<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>3. \u4f7f\u7528\u4e58\u6cd5\u548c\u9664\u6cd5<\/strong><\/p>\n<p>\u901a\u8fc7\u4e58\u6cd5\u548c\u9664\u6cd5\u4e5f\u53ef\u4ee5\u5b9e\u73b0 0.00 \u8fd0\u7b97\uff1a<\/p>\n<pre>let number = 0.00123456;\nnumber = (number * 100) \/ 100; \/\/ \u8f93\u51fa \"0.00\"<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjs \u5982\u4f55 0.00 \u8fd0\u7b97\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>javascript \u4e2d\u5b9e\u73b0 0.00 \u8fd0\u7b97\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 tofixed() \u65b9\u6cd5\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u5e76\u6307\u5b9a\u5c0f\u6570\u70b9\u540e\u4fdd\u7559 2 \u4f4d\u5c0f\u6570\u3002\u4f7f\u7528 math.round() \u65b9\u6cd5\u5c06\u6570\u5b57\u56db\u820d\u4e94\u5165\u5230\u6700\u63a5\u8fd1\u7684\u6574\u6570\uff0c\u518d\u9664\u4ee5 100\u3002\u4f7f\u7528\u4e58\u6cd5\u548c\u9664\u6cd5\u5c06\u6570\u5b57\u4e58\u4ee5 100\uff0c\u7136\u540e\u518d\u9664\u4ee5 100\u3002 JS \u4e2d\u5982\u4f55\u5b9e\u73b0 0.00 \u8fd0\u7b97 \u5728 JavaScript \u4e2d\uff0c\u5c0f\u6570\u53ef\u4ee5\u901a\u8fc7\u70b9\u53f7 (.) \u8868\u793a\u3002\u8981\u5b9e\u73b0 0.00 \u8fd0\u7b97\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a 1. \u4f7f\u7528toFixed() \u65b9\u6cd5 toFixed() \u65b9\u6cd5\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u5e76\u6307\u5b9a\u5c0f\u6570\u70b9\u540e\u8981\u4fdd\u7559\u7684\u5c0f\u6570\u4f4d\u6570\u3002\u5bf9\u4e8e 0.00 \u8fd0\u7b97\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a let number = 0.00123456; number = number.toFixed(2); \/\/ \u8f93\u51fa &#8220;0.00&#8221; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528Math.round() \u65b9\u6cd5 Math.round() \u65b9\u6cd5\u5bf9\u6570\u5b57\u8fdb\u884c\u56db\u820d\u4e94\u5165\u3002\u5bf9\u4e8e 0.00 \u8fd0\u7b97\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a let number = 0.00123456; number = [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3462","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3462","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=3462"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3462\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=3462"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=3462"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=3462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}