{"id":297,"date":"2020-02-04T21:06:46","date_gmt":"2020-02-04T13:06:46","guid":{"rendered":"https:\/\/blog.cqdefxxx.com\/?p=297"},"modified":"2020-02-04T21:06:46","modified_gmt":"2020-02-04T13:06:46","slug":"%e5%b1%9e%e6%80%a7%e5%90%8d%e5%92%8c%e5%b1%9e%e6%80%a7%e5%80%bc","status":"publish","type":"post","link":"https:\/\/blog.viter.top\/index.php\/2020\/02\/04\/%e5%b1%9e%e6%80%a7%e5%90%8d%e5%92%8c%e5%b1%9e%e6%80%a7%e5%80%bc\/","title":{"rendered":"\u5c5e\u6027\u540d\u548c\u5c5e\u6027\u503c"},"content":{"rendered":"<pre class=\"pure-highlightjs\"><code class=\"\">&lt;!DOCTYPE html&gt;\n&lt;html&gt;\n\t&lt;head&gt;\n\t\t&lt;meta charset=\"UTF-8\"&gt;\n\t\t&lt;title&gt;&lt;\/title&gt;\n\t\t&lt;script type=\"text\/javascript\"&gt;\n\t\t\t\n\t\t\tvar obj = new Object();\n\n\t\t\t\/*\n\t\t\t * \u5411\u5bf9\u8c61\u4e2d\u6dfb\u52a0\u5c5e\u6027\n\t\t\t * \u5c5e\u6027\u540d\uff1a\n\t\t\t * \t- \u5bf9\u8c61\u7684\u5c5e\u6027\u540d\u4e0d\u5f3a\u5236\u8981\u6c42\u9075\u5b88\u6807\u8bc6\u7b26\u7684\u89c4\u8303\n\t\t\t * \t\t\u4ec0\u4e48\u4e71\u4e03\u516b\u7cdf\u7684\u540d\u5b57\u90fd\u53ef\u4ee5\u4f7f\u7528\n\t\t\t * \t- \u4f46\u662f\u6211\u4eec\u4f7f\u7528\u662f\u8fd8\u662f\u5c3d\u91cf\u6309\u7167\u6807\u8bc6\u7b26\u7684\u89c4\u8303\u53bb\u505a\n\t\t\t * \n\t\t\t *\/\n\t\t\tobj.name = \"\u5b59\u609f\u7a7a\";\n\t\t\t\n\t\t\t\/\/obj.var = \"hello\";\n\t\t\t\n\t\t\t\/*\n\t\t\t * \u5982\u679c\u8981\u4f7f\u7528\u7279\u6b8a\u7684\u5c5e\u6027\u540d\uff0c\u4e0d\u80fd\u91c7\u7528.\u7684\u65b9\u5f0f\u6765\u64cd\u4f5c\n\t\t\t * \t\u9700\u8981\u4f7f\u7528\u53e6\u4e00\u79cd\u65b9\u5f0f\uff1a\n\t\t\t * \t\t\u8bed\u6cd5\uff1a\u5bf9\u8c61[\"\u5c5e\u6027\u540d\"] = \u5c5e\u6027\u503c\n\t\t\t * \t\u8bfb\u53d6\u65f6\u4e5f\u9700\u8981\u91c7\u7528\u8fd9\u79cd\u65b9\u5f0f\n\t\t\t * \n\t\t\t * \u4f7f\u7528[]\u8fd9\u79cd\u5f62\u5f0f\u53bb\u64cd\u4f5c\u5c5e\u6027\uff0c\u66f4\u52a0\u7684\u7075\u6d3b\uff0c\n\t\t\t * \t\u5728[]\u4e2d\u53ef\u4ee5\u76f4\u63a5\u4f20\u9012\u4e00\u4e2a\u53d8\u91cf\uff0c\u8fd9\u6837\u53d8\u91cf\u503c\u662f\u591a\u5c11\u5c31\u4f1a\u8bfb\u53d6\u90a3\u4e2a\u5c5e\u6027\n\t\t\t * \n\t\t\t *\/\n\t\t\tobj[\"123\"] = 789;\n\t\t\tobj[\"nihao\"] = \"\u4f60\u597d\";\n\t\t\tvar n = \"nihao\";\n\t\t\t\/\/console.log(obj[\"123\"]);\n\t\t\t\n\t\t\t\/*\n\t\t\t * \u5c5e\u6027\u503c\n\t\t\t * \tJS\u5bf9\u8c61\u7684\u5c5e\u6027\u503c\uff0c\u53ef\u4ee5\u662f\u4efb\u610f\u7684\u6570\u636e\u7c7b\u578b\n\t\t\t * \t\t\u751a\u81f3\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u5bf9\u8c61\n\t\t\t *\/\n\t\t\t\n\t\t\tobj.test = true;\n\t\t\tobj.test = null;\n\t\t\tobj.test = undefined;\n\t\t\t\n\t\t\t\/\/\u521b\u5efa\u4e00\u4e2a\u5bf9\u8c61\n\t\t\tvar obj2 = new Object();\n\t\t\tobj2.name = \"\u732a\u516b\u6212\";\n\t\t\t\n\t\t\t\/\/\u5c06obj2\u8bbe\u7f6e\u4e3aobj\u7684\u5c5e\u6027\n\t\t\tobj.test = obj2;\n\t\t\t\n\t\t\t\/\/console.log(obj.test.name);\n\t\t\t\n\t\t\t\/*\n\t\t\t * in \u8fd0\u7b97\u7b26\n\t\t\t * \t- \u901a\u8fc7\u8be5\u8fd0\u7b97\u7b26\u53ef\u4ee5\u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u4e2d\u662f\u5426\u542b\u6709\u6307\u5b9a\u7684\u5c5e\u6027\n\t\t\t * \t\t\u5982\u679c\u6709\u5219\u8fd4\u56detrue\uff0c\u6ca1\u6709\u5219\u8fd4\u56defalse\n\t\t\t *  - \u8bed\u6cd5\uff1a\n\t\t\t * \t\t\"\u5c5e\u6027\u540d\" in \u5bf9\u8c61\n\t\t\t *\/\n\t\t\t\/\/console.log(obj.test2);\n\t\t\t\n\t\t\t\/\/\u68c0\u67e5obj\u4e2d\u662f\u5426\u542b\u6709test2\u5c5e\u6027\n\t\t\t\/\/console.log(\"test2\" in obj);\n\t\t\t\/\/console.log(\"test\" in obj);\n\t\t\tconsole.log(\"name\" in obj);\n\t\t\t\n\t\t&lt;\/script&gt;\n\t&lt;\/head&gt;\n\t&lt;body&gt;\n\t&lt;\/body&gt;\n&lt;\/html&gt;\n<\/code><\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;meta charset= &#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[4],"_links":{"self":[{"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/posts\/297"}],"collection":[{"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/comments?post=297"}],"version-history":[{"count":0,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/posts\/297\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/media?parent=297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/categories?post=297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.viter.top\/index.php\/wp-json\/wp\/v2\/tags?post=297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}