JS中创造构建函数的方法

1 function CreatObject(){
2     var obj = new Object();
3     obj.name = "zackbee";
4     obj.sex = "unknow";
5     return zackbee;
6 }

1 function CreatObject(){
2     this.name ="zackbee";
3     this.sex = "unknow";
4 }
5 var obj = new CreatObject;

1 function CreatObject(){
2 }
3 CreatObject.prototype.name = "zackbee";
4 CreatObject.prototype.sex = "unknow";
5 var obj = new CreatObject();

1 function CreatObject(){
2 }
3 CreatObject.prototype = {
4    name : "zackbee",
5    sex : "unknow" 
6 };