{"id":3382,"date":"2024-11-10T15:31:08","date_gmt":"2024-11-10T07:31:08","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3382\/"},"modified":"2024-11-10T15:31:08","modified_gmt":"2024-11-10T07:31:08","slug":"js%e5%a6%82%e4%bd%95%e5%ae%9a%e4%b9%89%e4%b8%80%e4%b8%aa%e6%95%b0%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3382\/","title":{"rendered":"js\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c"},"content":{"rendered":"<blockquote><p>\n  \u5728 javascript \u4e2d\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c\u7684\u65b9\u6cd5\u4e3a\uff1avar number = value; \u4f8b\u5982\uff1avar age = 25; var price = 10.99; \u6ce8\u610f\u4e8b\u9879\uff1a\u4f7f\u7528 var \u5173\u952e\u5b57\u58f0\u660e\u53d8\u91cf\uff0c\u786e\u4fdd\u53d8\u91cf\u540d\u79f0\u4e0d\u542b\u7a7a\u683c\u6216\u7279\u6b8a\u5b57\u7b26\uff0c\u6570\u503c\u7c7b\u578b\u901a\u8fc7 typeof \u8fd0\u7b97\u7b26\u68c0\u67e5\uff0c\u7ed3\u679c\u4e3a &#8220;number&#8221;\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/08\/2024110811124213406.jpg\" class=\"aligncenter\" title=\"js\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c\u63d2\u56fe\" alt=\"js\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 JavaScript \u4e2d\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c<\/strong><\/p>\n<p>\u5728 JavaScript \u4e2d\uff0c\u6570\u503c\u662f\u4e00\u79cd\u7528\u6765\u8868\u793a\u6570\u5b57\u7684\u539f\u59cb\u6570\u636e\u7c7b\u578b\u3002\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c\u7684\u8fc7\u7a0b\u975e\u5e38\u7b80\u5355\u3002<\/p>\n<p><strong>\u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>var number = value;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>var age = 25;\nvar price = 10.99;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n<ul>\n<li>var \u5173\u952e\u5b57\u7528\u4e8e\u58f0\u660e\u4e00\u4e2a\u53d8\u91cf\uff0c\u800c number \u662f\u53d8\u91cf\u7684\u540d\u79f0\u3002<\/li>\n<li>value \u662f\u8981\u5206\u914d\u7ed9\u53d8\u91cf\u7684\u6570\u503c\u3002<\/li>\n<li>\u6570\u503c\u53ef\u4ee5\u662f\u6574\u6570\u3001\u6d6e\u70b9\u6570\u6216\u79d1\u5b66\u8ba1\u6570\u6cd5\u5f62\u5f0f\u3002<\/li>\n<li>\u786e\u4fdd\u53d8\u91cf\u540d\u79f0\u6ca1\u6709\u7a7a\u683c\u6216\u7279\u6b8a\u5b57\u7b26\u3002<\/li>\n<li>\u4f7f\u7528 typeof \u8fd0\u7b97\u7b26\u53ef\u4ee5\u68c0\u67e5\u53d8\u91cf\u7684\u7c7b\u578b\uff0c\u5bf9\u4e8e\u6570\u503c\uff0c\u7ed3\u679c\u5c06\u662f &#8220;number&#8221;\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjs\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c\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>\u5728 javascript \u4e2d\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c\u7684\u65b9\u6cd5\u4e3a\uff1avar number = value; \u4f8b\u5982\uff1avar age = 25; var price = 10.99; \u6ce8\u610f\u4e8b\u9879\uff1a\u4f7f\u7528 var \u5173\u952e\u5b57\u58f0\u660e\u53d8\u91cf\uff0c\u786e\u4fdd\u53d8\u91cf\u540d\u79f0\u4e0d\u542b\u7a7a\u683c\u6216\u7279\u6b8a\u5b57\u7b26\uff0c\u6570\u503c\u7c7b\u578b\u901a\u8fc7 typeof \u8fd0\u7b97\u7b26\u68c0\u67e5\uff0c\u7ed3\u679c\u4e3a &#8220;number&#8221;\u3002 \u5982\u4f55\u5728 JavaScript \u4e2d\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c \u5728 JavaScript \u4e2d\uff0c\u6570\u503c\u662f\u4e00\u79cd\u7528\u6765\u8868\u793a\u6570\u5b57\u7684\u539f\u59cb\u6570\u636e\u7c7b\u578b\u3002\u5b9a\u4e49\u4e00\u4e2a\u6570\u503c\u7684\u8fc7\u7a0b\u975e\u5e38\u7b80\u5355\u3002 \u65b9\u6cd5\uff1a var number = value; \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a var age = 25; var price = 10.99; \u767b\u5f55\u540e\u590d\u5236 \u6ce8\u610f\u4e8b\u9879\uff1a var \u5173\u952e\u5b57\u7528\u4e8e\u58f0\u660e\u4e00\u4e2a\u53d8\u91cf\uff0c\u800c number \u662f\u53d8\u91cf\u7684\u540d\u79f0\u3002 value \u662f\u8981\u5206\u914d\u7ed9\u53d8\u91cf\u7684\u6570\u503c\u3002 \u6570\u503c\u53ef\u4ee5\u662f\u6574\u6570\u3001\u6d6e\u70b9\u6570\u6216\u79d1\u5b66\u8ba1\u6570\u6cd5\u5f62\u5f0f\u3002 \u786e\u4fdd\u53d8\u91cf\u540d\u79f0\u6ca1\u6709\u7a7a\u683c\u6216\u7279\u6b8a\u5b57\u7b26\u3002 \u4f7f\u7528 typeof \u8fd0\u7b97\u7b26\u53ef\u4ee5\u68c0\u67e5\u53d8\u91cf\u7684\u7c7b\u578b\uff0c\u5bf9\u4e8e\u6570\u503c\uff0c\u7ed3\u679c\u5c06\u662f &#8220;number&#8221;\u3002 [&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-3382","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3382","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=3382"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3382\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=3382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=3382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=3382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}