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js倒计时代码

时间:2020-05-11 人气:0

<style type="text/css"> 
    #oTime { 
             color: blue; 
             font-size: 12px;              
    } 
</style> 
<script language="javascript"> 
    var _t; 
    var _h = 2; 
    var _m = 0; 
    var _s = 0; 
    var _v = formatTime(_h + ':' + _m + ':' + _s);

function doTime() { 
        _s --; 
        if (_s == -1) { 
             _m --; 
             _s = 59; 
        } 
        if (_m == -1) { 
             _h --; 
             _m = 59; 
        } 
        var _b = ((_h == 0) && (_m == 0) && (_s == 0)); 
        if (_b) { 
            _v = 'Welcome To IECN.NET'; 
            clearTimeout(_t); 
        } else { 
            _v = formatTime(_h + ':' + _m + ':' + _s); 
            _t = setTimeout('doTime()', 1000); 
        }  
        document.all['oTime'].innerHTML = _v; 
    } 
   
    function formatTime(_time) { 
        return _time.replace(/\b(\w)\b/g, '0$1'); 
    }

onload = function() { 
        document.all['oTime'].innerHTML = _v; 
        _t = setTimeout('doTime()', 1000); 
    } 
</script> 
<span id="oTime"></span>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

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