{"id":183,"date":"2021-02-26T22:40:44","date_gmt":"2021-02-26T14:40:44","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/javascript\/?p=183"},"modified":"2021-02-26T22:40:45","modified_gmt":"2021-02-26T14:40:45","slug":"js-%e7%9a%84-var-%e5%85%b3%e9%94%ae%e5%ad%97","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/javascript\/post-183.html","title":{"rendered":"Js \u7684 var \u5173\u952e\u5b57"},"content":{"rendered":"\n<p>Js \u4e2d\uff0c\u4f7f\u7528 var \u5173\u952e\u5b57\u5b9a\u4e49\u53d8\u91cf<\/p>\n\n\n\n<p>\u4f8b\u5982\uff1avar a = 10; \u8868\u793a\u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf a \uff0c\u503c\u4e3a10<\/p>\n\n\n\n<h5>var \u5b9a\u4e49\u53d8\u91cf<\/h5>\n\n\n\n<p>\u5b9a\u4e49\u53d8\u91cf\u65f6\uff0c\u53ef\u4ee5\u4e0d\u5199 var<\/p>\n\n\n\n<p>\u4f8b\u5982\uff1a a = 10; <\/p>\n\n\n\n<p>\u90a3\u4e48\u5199 var \u4e0e \u4e0d\u5199\u7684\u533a\u522b\u662f\uff0cvar \u5b9a\u4e49\u7684\u662f\u5c40\u90e8\u53d8\u91cf\uff0c\u4e0d\u5199\u5b9a\u4e49\u7684\u662f\u5168\u5c40\u53d8\u91cf<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>function f(){\n  var a =10;\n  b = 5\n}\nalert(b);  \/\/b\u6b63\u5e38\u8f93\u51fa\uff0c\u4e3a5\nalert(a);  \/\/\u6b64\u65f6\u62a5\u9519\uff0c\u56e0\u4e3a var \u662f\u5728\u65b9\u6cd5\u4f53\u5185\u7684\u5c40\u90e8\u53d8\u91cf<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Js \u4e2d\uff0c\u4f7f\u7528 var \u5173\u952e\u5b57\u5b9a\u4e49\u53d8\u91cf \u4f8b\u5982\uff1avar a = 10; \u8868\u793a\u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf a \uff0c\u503c\u4e3a10 var&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/javascript\/post-183.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">Js \u7684 var \u5173\u952e\u5b57<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/posts\/183"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/comments?post=183"}],"version-history":[{"count":1,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/posts\/183\/revisions"}],"predecessor-version":[{"id":184,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/posts\/183\/revisions\/184"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/media?parent=183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/categories?post=183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/tags?post=183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}