{"id":3548,"date":"2024-11-10T15:08:05","date_gmt":"2024-11-10T07:08:05","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3548\/"},"modified":"2024-11-10T15:08:05","modified_gmt":"2024-11-10T07:08:05","slug":"javascript-%e4%b8%ad%e8%b0%83%e7%94%a8%e5%87%bd%e6%95%b0%e4%b8%ba%e4%bd%95%e4%b8%8d%e6%89%93%e5%8d%b0%ef%bc%9athis-%e4%b8%8a%e4%b8%8b%e6%96%87%e7%bb%91%e5%ae%9a%e9%97%ae%e9%a2%98%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3548\/","title":{"rendered":"JavaScript \u4e2d\u8c03\u7528\u51fd\u6570\u4e3a\u4f55\u4e0d\u6253\u5370\uff1athis \u4e0a\u4e0b\u6587\u7ed1\u5b9a\u95ee\u9898\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173105568484403.jpg\" class=\"aligncenter\" title=\"JavaScript \u4e2d\u8c03\u7528\u51fd\u6570\u4e3a\u4f55\u4e0d\u6253\u5370\uff1athis \u4e0a\u4e0b\u6587\u7ed1\u5b9a\u95ee\u9898\uff1f\u63d2\u56fe\" alt=\"JavaScript \u4e2d\u8c03\u7528\u51fd\u6570\u4e3a\u4f55\u4e0d\u6253\u5370\uff1athis \u4e0a\u4e0b\u6587\u7ed1\u5b9a\u95ee\u9898\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>JavaScript \u4e2d\u8f93\u51fa\u4e0d\u6253\u5370\u7684\u539f\u56e0<\/strong><\/p>\n<p>\u5728\u63d0\u4f9b\u7684\u4ee3\u7801\u4e2d\uff0c\u9047\u5230\u4e86\u4e00\u4e2a\u95ee\u9898\uff1a\u8c03\u7528\u51fd\u6570 bb.eat() \u6ca1\u6709\u8f93\u51fa\u4efb\u4f55\u5185\u5bb9\u3002\u8fd9\u662f\u5462\uff1f<\/p>\n<p>\u4ee3\u7801\u4e2d\u5b9a\u4e49\u4e86\u4e24\u4e2a\u7c7b\uff0ca \u548c b\u3002\u7c7b a \u6709\u4e24\u4e2a\u5c5e\u6027\uff08name \u548c age\uff09\u548c\u4e00\u4e2a\u65b9\u6cd5\uff08say\uff09\uff0c\u8be5\u65b9\u6cd5\u6253\u5370 age \u7684\u503c\u3002<\/p>\n<p>\u7c7b b \u6709\u4e00\u4e2a\u65b9\u6cd5\uff08eat\uff09\uff0c\u5b83\u8c03\u7528\u65b9\u6cd5 a.call(b)\u3002\u7531\u4e8e this \u4e0a\u4e0b\u6587\u7684\u6539\u53d8\uff0c\u8c03\u7528 a.say \u5c06\u6253\u5370 b \u7684 age \u503c\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u4f46\u662f\uff0c\u5728\u8c03\u7528 bb.eat() \u65f6\uff0c\u4ece\u672a\u6267\u884c <strong>this.say<\/strong> \u65b9\u6cd5\u3002\u5c3d\u7ba1 this \u4e0a\u4e0b\u6587\u88ab\u8bbe\u7f6e\u4e3a b\uff0c\u4f46 this.say \u4ecd\u7136\u5f15\u7528\u7684\u662f\u7c7b a \u7684\u65b9\u6cd5\u3002\u6362\u53e5\u8bdd\u8bf4\uff0cthis.say \u6ca1\u6709\u7ed1\u5b9a\u5230 b \u5b9e\u4f8b\u4e0a\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u8c03\u7528 bb.eat() \u5e76\u6ca1\u6709\u4ea7\u751f\u4efb\u4f55\u8f93\u51fa\uff0c\u56e0\u4e3a\u6ca1\u6709\u6253\u5370 age \u503c\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJavaScript \u4e2d\u8c03\u7528\u51fd\u6570\u4e3a\u4f55\u4e0d\u6253\u5370\uff1athis \u4e0a\u4e0b\u6587\u7ed1\u5b9a\u95ee\u9898\uff1f\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\u8f93\u51fa\u4e0d\u6253\u5370\u7684\u539f\u56e0 \u5728\u63d0\u4f9b\u7684\u4ee3\u7801\u4e2d\uff0c\u9047\u5230\u4e86\u4e00\u4e2a\u95ee\u9898\uff1a\u8c03\u7528\u51fd\u6570 bb.eat() \u6ca1\u6709\u8f93\u51fa\u4efb\u4f55\u5185\u5bb9\u3002\u8fd9\u662f\u5462\uff1f \u4ee3\u7801\u4e2d\u5b9a\u4e49\u4e86\u4e24\u4e2a\u7c7b\uff0ca \u548c b\u3002\u7c7b a \u6709\u4e24\u4e2a\u5c5e\u6027\uff08name \u548c age\uff09\u548c\u4e00\u4e2a\u65b9\u6cd5\uff08say\uff09\uff0c\u8be5\u65b9\u6cd5\u6253\u5370 age \u7684\u503c\u3002 \u7c7b b \u6709\u4e00\u4e2a\u65b9\u6cd5\uff08eat\uff09\uff0c\u5b83\u8c03\u7528\u65b9\u6cd5 a.call(b)\u3002\u7531\u4e8e this \u4e0a\u4e0b\u6587\u7684\u6539\u53d8\uff0c\u8c03\u7528 a.say \u5c06\u6253\u5370 b \u7684 age \u503c\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4f46\u662f\uff0c\u5728\u8c03\u7528 bb.eat() \u65f6\uff0c\u4ece\u672a\u6267\u884c this.say \u65b9\u6cd5\u3002\u5c3d\u7ba1 this \u4e0a\u4e0b\u6587\u88ab\u8bbe\u7f6e\u4e3a b\uff0c\u4f46 this.say \u4ecd\u7136\u5f15\u7528\u7684\u662f\u7c7b a \u7684\u65b9\u6cd5\u3002\u6362\u53e5\u8bdd\u8bf4\uff0cthis.say \u6ca1\u6709\u7ed1\u5b9a\u5230 b \u5b9e\u4f8b\u4e0a\u3002 \u56e0\u6b64\uff0c\u8c03\u7528 bb.eat() \u5e76\u6ca1\u6709\u4ea7\u751f\u4efb\u4f55\u8f93\u51fa\uff0c\u56e0\u4e3a\u6ca1\u6709\u6253\u5370 age \u503c\u3002 \u4ee5\u4e0a\u5c31\u662fJavaScript \u4e2d\u8c03\u7528\u51fd\u6570\u4e3a\u4f55\u4e0d\u6253\u5370\uff1athis \u4e0a\u4e0b\u6587\u7ed1\u5b9a\u95ee\u9898\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-3548","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3548","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=3548"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3548\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=3548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=3548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=3548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}