{"id":2230,"date":"2017-05-05T15:45:51","date_gmt":"2017-05-05T07:45:51","guid":{"rendered":"http:\/\/www.qdabc.cn\/?p=2230"},"modified":"2017-05-05T15:45:51","modified_gmt":"2017-05-05T07:45:51","slug":"javascript-%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"http:\/\/www.qdabc.cn\/?p=2230","title":{"rendered":"JavaScript \u9762\u5411\u5bf9\u8c61"},"content":{"rendered":"<pre>\/\/\u6784\u9020\u51fd\u6570\r\nfunction Person(name, age) {\r\n    \/\/\u5b9e\u4f8b\u5c5e\u6027\r\n    this.name = name;\r\n    this.age = age;\r\n    \/\/\u5b9e\u4f8b\u65b9\u6cd5\r\n    this.speak = function() {\r\n        return \"\u4f1a\u8bf4\u8bdd\";\r\n    }\r\n}\r\n\r\nvar person1 = new Person(\"\u5f20\u4e09\", 15);\r\nvar person2 = new Person(\"\u5f20\u4e09\", 35);\r\n\/\/\u6bd4\u8f83\u7684\u662f\u503c\r\nconsole.log(person1.name == person2.name);\r\n\/\/\u6bd4\u8f83\u7684\u662f\u5730\u5740\r\nconsole.log(person1.speak == person2.speak);\r\n\/\/\u6784\u9020\u51fd\u6570\u7684\u7f3a\u70b9  \u6ca1\u5b9e\u4f8b\u5316\u4e00\u4e2a\u5bf9\u8c61\uff0c\u90a3\u4e48\u4f1a\u5728 \u6784\u9020\u51fd\u6570\u4e2d\u7684\u5b9e\u4f8b\u5316 \u5c06\u5f00\u8f9f\u4e00\u6b21\u7a7a\u95f4  \u4f1a\u9020\u6210\u5185\u5b58\u6216\u8005\u7a7a\u95f4\u7684\u6d6a\u8d39\r\n\/\/\u89e3\u51b3\u63aa\u65bd  \u4f7f\u7528\u539f\u578b prototype  \r\nfunction Dog () {}\/\/\u521b\u5efa\u4e00\u4e2a\u6784\u9020\u51fd\u6570\r\n\/\/\u539f\u578b\u5c5e\u6027\r\nDog.prototype.name = \"big\";\r\nDog.prototype.age = 5;\r\n\/\/\u539f\u578b\u65b9\u6cd5\r\nDog.prototype.bark = function () {\r\n    return \"\u6c6a\u6c6a\";\r\n}\r\nDog.prototype.wag = function () {\r\n    return \"\u6447\u5c3e\u5df4\";\r\n}\r\n\/\/\u539f\u578b\u65e0\u6cd5\u4f20\u53c2 \u6240\u4ee5\u5b9e\u4f8b\u5316\u51fa\u6765\u7684\u5bf9\u8c61\u90fd\u5177\u6709\u76f8\u540c\u7684\u5c5e\u6027\u503c\r\nvar dog1 = new Dog();\r\nvar dog2 = new Dog();\r\nconsole.log(dog1.name == dog2.name);\r\nconsole.log(dog1.wag== dog2.wag);\r\n\r\n\/\/\u6df7\u5408\u578b\r\n\/\/\u5c5e\u6027\u5b9a\u4e49\u6210\u5b9e\u4f8b\u5c5e\u6027\r\n\/\/\u65b9\u6cd5\u5b9a\u4e49\u6210\u539f\u578b\u65b9\u6cd5\r\n\r\nfunction Cat (name,age) {\r\n    \/\/\u5b9e\u4f8b\u5c5e\u6027\r\n    this.name = name;\r\n    this.age = age;\r\n}\r\n\/\/\u539f\u578b\u65b9\u6cd5\r\nCat.prototype = {\r\n    \r\n    drag : function() {\r\n        return \"\u6293\u8001\u9f20\";\r\n    },\r\n    eat : function() {\r\n        return \"\u5403\u9c7c\";\r\n    }\r\n}\r\nvar cat = new Cat(\"\u52a0\u83f2\u732b\", 3);\r\nconsole.log(cat.name);\r\nconsole.log(cat.eat());\r\n\r\n<\/pre>\n<p>\u7ee7\u627f<\/p>\n<p>\u5b9e\u4f8b\u65b9\u6cd5\u5b9e\u4f8b\u5c5e\u6027\u7ee7\u627f<\/p>\n<pre>function Person(name, age) {\r\n    this.name = name;\r\n    this.age = age;\r\n    this.eat = function() {\r\n        return \"\u5403\u8d27\";\r\n    }  \r\n}\r\n\/\/call() \u4f2a\u88c5\u7ee7\u627f\r\nfunction Man(name, age, sex) {\r\n    Person.call(this, name, age);\r\n    \/\/Person.apply(this, [name, age]);\r\n    this.sex = sex;\r\n}\r\n\/\/ call() apply() \u90fd\u662f\u4f2a\u88c5\u7ee7\u627f  \u90fd\u53ea\u80fd\u7ee7\u627f\u5b9e\u4f8b\u5c5e\u6027\u548c\u5b9e\u4f8b\u65b9\u6cd5\r\n\/\/\u7b2c\u4e00\u4e2a\u53c2\u6570\u90fd\u662f\u5f53\u524d\u5b50\u5bf9\u8c61\r\n\/\/call(); \u7236\u5bf9\u8c61\u6709\u51e0\u4e2a\u53c2\u6570\uff0c\u540e\u9762\u4f20\u51e0\u4e2a\u53c2\u6570\r\n\/\/apply(); \u7236\u5bf9\u8c61\u7684\u53c2\u6570\u4ee5\u6570\u7ec4\u7684\u65b9\u5f0f\u4f20\u5165\r\nvar man = new Man(\"\u5f20\u4e09\", \"15\", \"\u7537\");\r\nconsole.log(man.name);\r\nconsole.log(man.age);\r\nconsole.log(man.sex);\r\n\r\n<\/pre>\n<p>\u539f\u578b\u7ee7\u627f\u6216\u539f\u578b\u94fe\u7ee7\u627f<\/p>\n<pre>function Dog () {};\r\n\/\/\u539f\u578b\u5c5e\u6027\r\nDog.prototype.name = \"xxx\";\r\nDog.prototype.age = 3;\r\n\/\/\u539f\u578b\u65b9\u6cd5\r\nDog.prototype.eat = function() {\r\n    return \"\u5403\u8089\";\r\n}\r\nfunction JinMao () {};\r\n\r\nfor(var i in Dog.prototype) {\r\n    JinMao.prototype[i] = Dog.prototype[i];\r\n}\r\n\r\n\r\nvar jinMao = new JinMao(\"\u5c0f\u4f18\", 3,);\r\nconsole.log(jinMao.name);\r\nconsole.log(jinMao.eat());\r\n<\/pre>\n<p>\u6df7\u5408\u7ee7\u627f<\/p>\n<pre>function Dog (name, age) {\r\n    \/\/\u5b9e\u4f8b\u5c5e\u6027\r\n    this.name = name;\r\n    this.age = age;\r\n};\r\n\r\n\/\/\u539f\u578b\u65b9\u6cd5\r\nDog.prototype.eat = function() {\r\n    return \"\u5403\u8089\";\r\n}\r\n\/\/\u5b50\u6784\u9020\u51fd\u6570\r\nfunction JinMao (name, age) {\r\n    Dog.call(this, name, age);\r\n};\r\n\r\nfor(var i in Dog.prototype) {\r\n    JinMao.prototype[i] = Dog.prototype[i];\r\n}\r\n\r\n\/\/\u5b9e\u4f8b\u5316\u4e00\u4e2a\u5bf9\u8c61\r\nvar jinMao = new JinMao(\"\u5c0f\u4f18\", 3,);\r\n\r\nconsole.log(jinMao.name);\r\nconsole.log(jinMao.eat());\r\n<\/pre>\n<p class=\"post-copyright\">\u6b22\u8fce\u5206\u4eab\u672c\u6587\uff0c\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u51fa\u5904\uff1a<a href=\"http:\/\/www.qdabc.cn\">\u524d\u7aefABC<\/a> &raquo; <a href=\"http:\/\/www.qdabc.cn\/?p=2230\">JavaScript \u9762\u5411\u5bf9\u8c61<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\/\/\u6784\u9020\u51fd\u6570 function Person(name, age) { \/\/\u5b9e\u4f8b\u5c5e\u6027 this.name = name; this.age = age; \/\/\u5b9e\u4f8b\u65b9\u6cd5 this.speak = fun [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[9,269,174,81,60],"_links":{"self":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/2230"}],"collection":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2230"}],"version-history":[{"count":1,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/2230\/revisions"}],"predecessor-version":[{"id":2231,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/2230\/revisions\/2231"}],"wp:attachment":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2230"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}