这篇文章主要介绍了js如何采用delete实现所谓的继承,下面有个不错的示例,大家可以参考下
复制代码 代码如下:
//采用对象冒充的方式实现js继承
function A(color) {
this.Acolor = color;
this.AshowColor = function() {
document.writeln("Acolor: " + this.Acolor);
}
}
function B(color, name) {
//将newMethod赋值A,调用A的构造函数
this.newMethod = A;
this.newMethod(color);
//然后删除对A的引用,这样以后不能调用他
delete this.newMethod;
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("----------------");