function SuperType() { this.property = true; //原型属性 } //基类方法 SuperType.prototype.getSuperValue = function() { return this.property; } function SubType() { this.subproperty = false; //子类属性 } //继承SuperType SubType.prototype = new SuperType(); //定义子类方法 SubType.prototype.getSubValue = function() { return this.subproperty; } var instance = new SubType(); console.log(instance.getSuperValue()); //true 基类方法 console.log(instance.getSubValue()); //true 子类方法 //借用构造函数模式 function SuperType() { this.colors = ['red', 'blue', 'green']; } function SubType() { SuperType.call(this); //this 继承SuperType } var instance1 = new SubType(); instance1.colors.push("black"); console.log(instance1.colors); //red,blue,green,black var instance2 = new SubType(); consoles.log(instance2.colors);