JavaScript Call 方法和 JavaScript Apply方法 总结

?

代码function Class1(){this.name="class1";this.showSub = function(a,b){alert(a - b);};}function Class2(){this.name="class2";this.showAdd = function(a,b){alert(a + b);}}
function Class3(){Class1.call(this);Class2.call(this);}var v3 = new Class3();v3.showSub(8,6); ?// 输出 2 ；调用Class1的 showSub?v3.showAdd(3,5); ?// 输出 8 ；调用Class2的 showAdd?

?