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通过把父类的对象实例赋值给子类来实现原型式集成
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| <!DOCTYPE html> | |
| <html> | |
| <head lang="en"> | |
| <meta charset="UTF-8"> | |
| <title>js继承</title> | |
| </head> | |
| <body> | |
| <script type="text/javascript"> | |
| function Person(name) { | |
| this.name = name; | |
| } | |
| Person.prototype.getName = function(){ | |
| return this.name; | |
| } | |
| function User (name,password){ | |
| this.name = name; | |
| this.password = password; | |
| } | |
| User.prototype = new Person(); | |
| User.prototype.getPassword = function(){ | |
| return this.password; | |
| } | |
| var user = new User("john","123456"); | |
| console.log(user.getName()); | |
| console.log(user.getPassword()); | |
| </script> | |
| </body> | |
| </html> |
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