所以我想做的是让下面的代码以不同的方式显示。例如,当它说0.135731974时,我希望它真的说13.5731974%,但仍然以相同的速度计数。如果你知道我的意思,请告诉我如何!
这是代码:
<script>
var timer;
var stop;
function startCount()
{
stop = false;
timer = setInterval(count,1);
}
function stopCount()
{
stop = true;
}
function count()
{
if(stop == false)
{
var el = document.getElementById('counter');
var currentNumber = parseFloat(el.innerHTML);
el.innerHTML = currentNumber+0.00000003831417624521;
}
}
</script>
</head>
<body>
<div id="counter">0</div>
<input type="button" value="reset" id="reset" onclick="document.getElementById('counter').innerHTML = 0;" />
<input type="button" value="start" id="start" onclick="startCount();" />
<input type="button" value="stop" id="stop" onclick="stopCount();" />
</body>
</html>
答案 0 :(得分:2)
将您的count()
功能更改为:
var currentNumber = 0;
function count() {
if (!stop) {
var el = document.getElementById('counter');
currentNumber += 0.00000003831417624521;
el.innerHTML = (currentNumber * 100) + "%";
}
}
将currentNumber
保存在变量中而不是每次都将其解析出HTML更加容易和高效,尤其是在将其格式化为百分比值之后。
此外,您的stopCount()
功能需要这样,这样您就不会同时运行多个计时器:
function stopCount() {
stop = true;
clearInterval(timer);
}
整个代码块可以简化并清理为:
<html>
<head>
<script>
var timer, currentNumber = 0;
function startCount() {
if (!timer) {
timer = setInterval(count, 100);
}
}
function stopCount() {
if (timer) {
clearInterval(timer);
timer = null;
}
}
function count() {
var el = document.getElementById('counter');
currentNumber += 0.00000003831417624521;
el.innerHTML = (currentNumber * 100) + "%";
}
function reset() {
currentNumber = 0;
document.getElementById('counter').innerHTML = "0";
}
</script>
</head>
<body>
<div id="counter">0</div>
<input type="button" value="reset" id="reset" onclick="reset()" />
<input type="button" value="start" id="start" onclick="startCount();" />
<input type="button" value="stop" id="stop" onclick="stopCount();" />
</body>
</html>
答案 1 :(得分:0)
将%
直接放在HTML中,然后将增量值增加100倍:
<div><span id="counter">0</span>%</div>
el.innerHTML = currentNumber + 0.000003831417624521;