Question

有人可以帮我在一个页面内实现两个javascript计数器吗？我目前有计数器启动和运行，但当我尝试为另一个计数器创建一个新的div时，原始计数器消失，只显示一个计数器。这是我的第一篇文章，请原谅任何混乱的格式。我非常感谢任何帮助，我对javascript很新。谢谢！

这是我的代码：

<div id="counter"></div>
<div id="counter1"></div>


<script type="text/javascript">
var START_DATE = new Date("July 27, 2010 13:30:00"); // put in the starting date here
var INTERVAL = 1; // in seconds
var INCREMENT = 2; // increase per tick
var START_VALUE = 9001; // initial value when it's the start date
var count = 0;

window.onload = function()
{
var msInterval = INTERVAL * 1000;
var now = new Date();
count = parseInt((now - START_DATE)/msInterval) * INCREMENT + START_VALUE;
document.getElementById('counter').innerHTML = addCommas(count);
setInterval("count += INCREMENT; document.getElementById('counter').innerHTML = 
addCommas(count);", msInterval);
}
</script>


<script type="text/javascript">
var START_DATE = new Date("July 27, 2011 13:30:00"); // put in the starting date here
var INTERVAL = 1; // in seconds
var INCREMENT = 2; // increase per tick
var START_VALUE = 8001; // initial value when it's the start date
var count = 0;

window.onload = function()
{
var msInterval = INTERVAL * 1000;
var now = new Date();
count = parseInt((now - START_DATE)/msInterval) * INCREMENT + START_VALUE;
document.getElementById('counter1').innerHTML = addCommas(count);
setInterval("count += INCREMENT; document.getElementById('counter1').innerHTML =   
addCommas(count);", msInterval);
}
</script>


<script type="text/javascript">
function addCommas(nStr)
{
nStr += '';
x = nStr.split('.');
x1 = x[0];
x2 = x.length > 1 ? '.' + x[1] : '';
var rgx = /(\d+)(\d{3})/;
while (rgx.test(x1)) {
    x1 = x1.replace(rgx, '$1' + ',' + '$2');
}
return x1 + x2;
}
</script>

Answer 1

您不能拥有两个window.onload脚本，最后一个将覆盖第一个脚本。

只需重复使用相同的代码，只需将下一个计数器添加到下一个div。

window.onload = function()
{
    var msInterval = INTERVAL * 1000;
    var now = new Date();
    count = parseInt((now - START_DATE)/msInterval) * INCREMENT + START_VALUE;
    document.getElementById('counter').innerHTML = addCommas(count);
    setInterval("count += INCREMENT; document.getElementById('counter').innerHTML = addCommas(count);", msInterval);
    document.getElementById('counter1').innerHTML = addCommas(count);
    setInterval("document.getElementById('counter1').innerHTML =  addCommas(count);", msInterval);
}

编辑：递增计数仅一次，否则第二个计数器优先于第一个

javascript计数器 - 如何在同一页面上包含多个计数器？

1 个答案: