//简单的函数调用

         function Father() {

             this.nums= [1,2];

         }

         function Son() {

             Father.call(this);//调用超类型,完成son继承father

         }

         var s1 = new Son();

         s1.nums.push("yellow");

         alert(s1.nums);//red,black,yellow

         var s2 = new Son();

         alert(s2.nums); //red,black

 //向父类传参

         function Human(name) {

             this.name = name;

         }

         function Man(name,age) {

             Human.call(this, name);

             this.age = age;

         }

         var yaoMing = new Man("姚明",42);

         alert(yaoMing.name);//姚明

         alert(yaoMing.age);//