JS实现时钟程序 

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Strict//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JS实现时钟程序</title>
<script>
    //获取对象
    function $(id)
    {
        return document.getElementById(id);
    }
    
    //定时器
    var timer;
    //获取时间
    function display()
    {
        var date = new Date();
        var str = date.getHours()+'-'+date.getMinutes()+'-'+date.getSeconds();
        $('result').value = str;
        timer = setTimeout('display()',1000);
        
    }
    
    window.onload = function()
    {
        $('begin').onclick = display;
        $('stop').onclick = function()
        {
            clearTimeout(timer);
        }
    }
</script>
</head>
<body>
<input type='text' id='result'/>
<hr />
<input type='button' id='begin' value='Start'/>
<input type='button' id='stop' value='Stop' />
</body>
</html>

截图如下：

 

posted @ 2015-10-08 15:21  lesuso  阅读(248)  评论(0)    收藏  举报