javascript中，prototype的作用主要是为了为类添加方法。
<script language="javascript">
//定义一个类
var Person = function(name,age){
this.name = name;
this.age = age;
this.sayHello=function(){
//this可以省略
alert("hello," + this.name);
}
};
//为类添加一个方法,this不能省略！
Person.prototype.talk = function(){
alert(this.name + ":" + this.age +":"+ "talk");
};
var zhangsan = new Person("zhangsan",19);
var lisi = new Person("lisi",19);
zhangsan.talk();
zhangsan.sayHello();
lisi.talk();
lisi.sayHello();
var xinqushi = XINQUSHI = {
sayHello: function(name){
alert("hello," + name);
}
}
TT.sayHello("girl!");
TAOTAO.sayHello("boy!");
</script>
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/2637/viewspace-2815927/ ，如需转载，请注明出处，否则将追究法律责任。
