向大牛问一个关于JS的问题,

qin442799037 2009-05-11 05:17:59

一个计时器类

// 计时器类 

function CountDown()

{

this.customDateTime=({years:0,months:0,days:0,hours:0,minutes:0,seconds:0,Ms:0});

this.timerVariable=1111;

this.countMs=0;

this.successCallBack="";

this.triggerCallBack="";

this.IsRun=false;

}

CountDown.prototype =

{	

	

	//计时开始并返回自定义时间对象,countMs倒计时的毫秒数,callBack回调函数名称

	timer:function(countMs,successCallBack,triggerCallBack)

	{	

	  /* alert("sss");

	    alert(this.timer);

		alert(this.timerVariable+"\n"+triggerCallBack+"()\n"+successCallBack+"\n"+triggerCallBack);*/

		this.successCallBack=successCallBack;

		this.triggerCallBack=triggerCallBack;

		this.countMs=countMs;

		this.IsRun=true;

		var THIS=this;

		this.countMs=this.countMs-1000;

		this.convertToDateTime(this.countMs);

		eval(this.triggerCallBack+"()");

		if(this.countMs<=0)

		{

		   this.IsRun=false;

		   alert(this.successCallBack);

		   eval(this.successCallBack+"()");

		   return;

		}

		function run()

		{

		   THIS.timer(THIS.countMs,THIS.successCallBack,THIS.triggerCallBack);

		}

		if(this.IsRun==true)

		{

			setTimeout(run(),10000);

		}

	},

	//将时分秒转化为毫秒type:Hours/Minutes/Seconds

	convertToMS:function(count,type)

	{

		var customMs=0;

		if(count>0)

		{

			if(Type=="Hours")

		    {	

				customMs=count*60*60*1000;

		    }

	    	else if(Type=="Minutes")

		    {

			    	customMs=count*60*1000;

		    }

		    else if(Type=="Seconds")

		    {

		        customMs=count*1000;

		    }

		}

		

	},

	//将毫秒转化为自定义时间对象输出

	convertToDateTime:function(inputMs)

	{

	    var years=0;

	    var months=0;

	    var days=0;

	    var hours=0;

	    var minutes=0;

	    var seconds=0;

	    var Ms=0;

	    if(inputMs>0)

	    {   

	        if(inputMs>=(365*24*60*60*1000))

	        {

	            years=Math.floor(inputMs/(365*24*60*60*1000));

	            inputMs=inputMs-(365*24*60*60*1000)*years;

	        }

	        if(inputMs>=(30*24*60*60*1000))

	        {

	             months=Math.floor(inputMs/(30*24*60*60*1000));

	             inputMs=inputMs-months*(30*24*60*60*1000);

	        }

	        if(inputMs>=(24*60*60*1000))

	        {

	            days=Math.floor(inputMs/(24*60*60*1000));

	            inputMs=inputMs-days*(24*60*60*1000);

	        }

	        if(inputMs>=(60*60*1000))

	        {

	            hours=Math.floor(inputMs/(60*60*1000));

	            inputMs=inputMs-hours*(60*60*1000);

	        }

	        if(inputMs>=(60*1000))

	        {

	            minutes=Math.floor(inputMs/(60*1000));

	            inputMs=inputMs-minutes*(60*1000);

	        }

	        if(inputMs>=1000)

	        {

	            seconds=Math.floor(inputMs/1000);

	            inputMs=inputMs-seconds*1000;

	        }

	        if(inputMs>1)

	        {

	            Ms=inputMs;

	        }

	       this.customDateTime.years=years;

	       this.customDateTime.months=months;

	       this.customDateTime.days=days;

	       this.customDateTime.hours=hours;

	       this.customDateTime.minutes=minutes;

	       this.customDateTime.seconds=seconds;

	       this.customDateTime.Ms=Ms;

	    }

	    

	   

	}

  

}

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<title>无标题文档</title>

</head>



<body>

<script type="text/javascript" src="../JS/Timer.js"></script>

<script type="text/javascript" >



var Timer=new CountDown();

var inputMs=1000*60;

Timer.timer(inputMs,'Success','Trigger');



function Trigger()

{

var MyDate=Timer.customDateTime;

var Result="";

Result+="Years:"+MyDate.years+"<br />";

Result+="Months:"+MyDate.months+"<br />";

Result+="Days:"+MyDate.days+"<br />";

Result+="Hours:"+MyDate.hours+"<br />";

Result+="Minutes"+MyDate.minutes+"<br />";

Result+="Seconds:"+MyDate.seconds+"<br />";

Result+="Ms:"+MyDate.Ms+"<br />";

document.write(Result);

}

function Success()

{

 alert("Success");

 return;

}

</script>

</body>

</html>

一个计时器类

JScript code

<script type="text/javascript" src="../JS/Timer.js"></script> <script type="text/javascript" > var Timer=new CountDown(); var inputMs=1000*60; Timer.timer(inputMs,'Success','Trigger'); function Trigger() { var MyDate=Timer.customDateTime; var Result=""; Result+="Years:"+MyDate.years+"<br />"; Result+="Months:"+MyDate.months+"<br />"; Result+="Days:"+MyDate.days+"<br />"; Result+="Hours:"+MyDate.hours+"<br />"; Result+="Minutes"+MyDate.minutes+"<br />"; Result+="Seconds:"+MyDate.seconds+"<br />"; Result+="Ms:"+MyDate.Ms+"<br />"; document.write(Result); } function Success() { alert("Success"); return; } </script>

HTML code

<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>无标题文档</title> </head> <body> <script type="text/javascript" src="../JS/Timer.js"></script> <script type="text/javascript" > var Timer=new CountDown(); var inputMs=1000*60; Timer.timer(inputMs,'Success','Trigger'); function Trigger() { var MyDate=Timer.customDateTime; var Result=""; Result+="Years:"+MyDate.years+"<br />"; Result+="Months:"+MyDate.months+"<br />"; Result+="Days:"+MyDate.days+"<br />"; Result+="Hours:"+MyDate.hours+"<br />"; Result+="Minutes"+MyDate.minutes+"<br />"; Result+="Seconds:"+MyDate.seconds+"<br />"; Result+="Ms:"+MyDate.Ms+"<br />"; document.write(Result); } function Success() { alert("Success"); return; } </script> </body> </html>

我这样写是有错误的,我找不到错误在哪里,大侠们可以拷过去测试一下
问题:
1:为什么我的setTimeout无返回值
2:我该怎么样实现这个计时器

...全文