2
*/
3
var p=new Employee('mxh',20);
1function Person(name)
2
{
3
this.name=name
4}
5Person.prototype.sayHello=function()
6{
7 alert(this.name);
8}
9function Employee(name,age)
10{
11 Person.call(this,name);
12 this.age=age;
13}
14Employee.prototype=new Person();//将Employee的prototype设置为Person的prototype，并用Employee.prototype作为this调用Person函数
*/
3var p=new Employee('mxh',20);
Code
1
function Person(name)2
{3
this.name=name4
}5
Person.prototype.sayHello=function()6
{7
alert(this.name);8
}9
function Employee(name,age)10
{11
Person.call(this,name);12
this.age=age;13
}14
Employee.prototype=new Person();//将Employee的prototype设置为Person的prototype，并用Employee.prototype作为this调用Person函数