混入继承

吴默涵1

于 2019-09-27 22:17:10 发布

阅读量119

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本文链接：https://blog.youkuaiyun.com/wu964521/article/details/101565556

版权

<!DOCTYPE html>
<html>
 <head>
  <meta charset="utf-8">
  <title></title>
 </head>
 <body>
  <script>
   var o1 = {};
   var o2 ={ name:'jim'};
    o1.name =o2.name;
    console.log(o1.name);
    function extend(o1,o2){
     for(var k in o2){
      o1[k] =o2[k];
     }
    }
    var o1 = {name:'jim'};
    var o2 ={ 
     age: 16,gender:'male' };
     extend(o1,o2);
     console.log(o1.name);
     console.log(o1.age);
     function Person(options){
      extend(this,options);
     }
     Person.fn =Person.prototype;
     Person.fn.extend =function(obj){
      extend(this,obj);
     };
     Person.fn.extend({
      sayHello: function(){
       console.log('你好，我是'+(this.name|| '无名'));
      }
     });
     var p1 =new  Person();
     var p2 =new Person({name:'张三',age:16});
     p1.sayHello();
     p2.sayHello();
  </script>
 </body>
</html>