js类、实例对象

一 、js类

1) 定义:

function cP(id,name){
   
    this.id = id;
    this.name = name;
    this.method = function(){alert("hello");};
}

2) 给cP类添加属性:

cP.prototype.method1 = function){alert("this is another method of cP");};

3) cP类调用:

var v = new cP(3,"jack");



二、js实例对象

1) 定义

  1.1) var o = {
             i:4,
             method:function(){alert("hello");}
        };

 1.2) var o = new Object();
            o.i = 4;
            o.method = function(){alert("hello");
      };

 1.3) var o = {};
            o.i = 4;
            o.method = function(){alert("hello");
      };

2) 调用

o.method();