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  • js中的php rand函数

    //文件rand.js
    function MyRand(min, max){
    	this.min = min;
    	this.max = max;
    }
    
    MyRand.prototype.getRand = function(){
    		//parseInt(this.max * random()) 取整,此值肯定小于给的最大值
    	var temp = parseInt(this.max * Math.random());
    	while(temp < this.min){
    		 temp = parseInt(this.max * Math.random());
    	}
    	return temp;
    };
    
    //文件index.html
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
    "http://www.w3.org/TR/html4/strict.dtd">
    
    <html xmlns="http://www.w3.org/1999/xhtml" lang="en">
    	<head>
    		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    		<title>index</title>
    		<meta name="author" content="Administrator" />
    		<script type="text/javascript" src="rand.js"></script>
    		<!-- Date: 2015-12-29 -->
    		<script type="text/javascript">
    			var rand = new MyRand(20, 30);
    			var res = rand.getRand();
    			alert(res);
    			rand = null;//及时释放类存
    		</script>
    	</head>
    	<body>
    
    	</body>
    </html>
    
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  • 原文地址:https://www.cnblogs.com/yuwensong/p/5086588.html
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