复制代码 代码如下:

//采用call方式实现js继承

function A(color) {

this.Acolor = color;

this.AshowColor = function() {

document.writeln("Acolor: " + this.Acolor);

}

}

function B(color, name) {

A.call(this, color);

this.Bname = name;

this.BshowName = function() {

document.writeln("Bname: " + this.Bname);

}

}

var objA = new A("red");

objA.AshowColor();

document.writeln("----------------");

var objB = new B("black", "demo");

objB.AshowColor();

objB.BshowName();

document.writeln("----------------");