<!DOCTYPE html>
<html lang="en">
<head>
<meta charst="utf-8">
<title>单利模式的实现</title>
</head>
<body>
</body>
<script type="text/javascript">
//单例模式的核心是确保只有一个实例，并提供全局访问
var SingletonTester=(function () {
function Singleton (args) {
//设置args变量为接受的参数或者为空（没有提供的话）；
var args=args || {};
//设置name参数
this.name='SingletonTester';
//设置pointX的值
this.pointX=args.pointX || 6;//从接收的参数里面获得或者为默认值
//设置pointY值
this.pointY=args.pointY || 10;
}
//实例容器
var instance;
var _static={
name:'SingletonTester',
//获取实例的方法
//返回Singleton的实例
getInstance:function (args){
if (instance === undefined) {
instance = new Singleton(args);
}
return instance;
}
};
return _static;
})()
var singleTest=SingletonTester.getInstance({name:'hanhui',pointY:4,pointX:8});
console.log(singleTest.pointY);
</script>
</html>