我正在尝试用8个秒表做一个简单的页面，第二个秒表没有运作，我似乎无法弄明白，任何想法？第一个脚本应该工作，但是当我去点击开始时第二个脚本将给我一秒钟，然后我可以暂停和恢复并获得另一秒。它看起来对我来说，但我对此很新。
var time = 0;
var running = 0;
function startPause()
{
if(running == 0){
running = 1;
increment();
document.getElementById("startPause").innerHTML = "Pause";
}else{
running = 0;
document.getElementById("startPause").innerHTML = "Resume";
}
}
function reset()
{
running = 0;
time = 0;
document.getElementById("startPause").innerHTML = "Start";
document.getElementById("output").innerHTML = "00:00:00";
}
function increment()
{
if(running == 1){
setTimeout(function(){
time++;
var mins = Math.floor(time/10/60);
var secs = Math.floor(time/10 % 60);
var tenths = time % 10;
if(mins < 10){
mins = "0" + mins;
}
if(secs < 10){
secs = "0" + secs;
}
document.getElementById("output").innerHTML = mins + ":" + secs + ":" + "0" + tenths;
increment();
},100);
}
}
var time2 = 0;
var running2 = 0;
function startPause2()
{
if(running2 == 0){
running2 = 1;
increment2();
document.getElementById("startPause2").innerHTML = "Pause";
}
else{
running2 = 0;
document.getElementById("startPause2").innerHTML = "Resume";
}
}
function reset2()
{
running2 = 0;
time2 = 0;
document.getElementById("startPause2").innerHTML = "Start";
document.getElementById("output2").innerHTML = "00:00:00";
}
function increment2()
{
if(running2 == 1){
setTimeout(function(){
time2++;
var mins2 = Math.floor(time2/10/60);
var secs2 = Math.floor(time2/10 % 60);
var tenths2 = time2 % 10;
if(mins2 < 10){
mins2 = "0" + mins2;
}
if(secs2 < 10){
secs2 = "0" + secs2;
}
document.getElementById("output2").innerHTML = mins2 + ":" + secs2 + ":" + "0" + tenths2;
increment();
},100);
}
}
html {
size: 100%,100%;
background-color: #f2f2f2;
}
h1{
font-Family: Arial;
color: #5573A9;
font-size: 40px;
position: static;
}
body {
display: block;
margin:8px, dotted line;
background-color: #f2f2f2;
}
#output{
position:center;
width:120px;
height:25px;
background-color:#CCC;
border:3px solid #999;
}
#output2{
position: relative;
width:120px;
height:25px;
background-color:#CCC;
border:3px solid #999;
}
table {
display:table;
border-collapse:seperate;
border-spacing: 52px;
border-color: #FFF;
}<html>
<head>
<link rel="stylesheet" type="text/css" href="style.css">
<title>Time Study</title>
<h1>Time Study</h1>
</head>
<body>
<table>
<tr>
<th>Bin</th>
<th>Bulk</th>
</tr>
<tr>
<td>
<p id="output"></p>
<div id="controls">
<button id="startPause" onclick="startPause()">Start</button>
<button onclick="reset()">Reset</button>
</div>
</td>
<td>
<p id="output2"></p>
<div id="controls2">
<button id="startPause2" onclick="startPause2()">Start</button>
<button onclick="reset2()">Reset</button>
</div>
</td>
</tr>
</table>
</body>
</html>
答案 0 :(得分：2)
快速回答是：
对于第二个计时器，当您需要调用 increment2（）时，您正在调用 increment（）。
答案越长：
这指出了您尝试解决此问题的方式存在缺陷。如果你最终想要8个计时器，这将是一个很大的混乱。
您要做的是尝试解决问题，以便重用大部分代码而不是复制代码。如果您需要帮助，请告诉我。
在下面的JS中查找我的评论以获得修复。
var time = 0;
var running = 0;
function startPause() {
if (running == 0) {
running = 1;
increment();
document.getElementById("startPause").innerHTML = "Pause";
} else {
running = 0;
document.getElementById("startPause").innerHTML = "Resume";
}
}
function reset() {
running = 0;
time = 0;
document.getElementById("startPause").innerHTML = "Start";
document.getElementById("output").innerHTML = "00:00:00";
}
function increment() {
if (running == 1) {
setTimeout(function() {
time++;
var mins = Math.floor(time / 10 / 60);
var secs = Math.floor(time / 10 % 60);
var tenths = time % 10;
if (mins < 10) {
mins = "0" + mins;
}
if (secs < 10) {
secs = "0" + secs;
}
document.getElementById("output").innerHTML = mins + ":" + secs + ":" + "0" + tenths;
increment();
}, 100);
}
}
var time2 = 0;
var running2 = 0;
function startPause2() {
if (running2 == 0) {
running2 = 1;
increment2();
document.getElementById("startPause2").innerHTML = "Pause";
} else {
running2 = 0;
document.getElementById("startPause2").innerHTML = "Resume";
}
}
function reset2() {
running2 = 0;
time2 = 0;
document.getElementById("startPause2").innerHTML = "Start";
document.getElementById("output2").innerHTML = "00:00:00";
}
function increment2() {
if (running2 == 1) {
setTimeout(function() {
time2++;
var mins2 = Math.floor(time2 / 10 / 60);
var secs2 = Math.floor(time2 / 10 % 60);
var tenths2 = time2 % 10;
if (mins2 < 10) {
mins2 = "0" + mins2;
}
if (secs2 < 10) {
secs2 = "0" + secs2;
}
document.getElementById("output2").innerHTML = mins2 + ":" + secs2 + ":" + "0" + tenths2;
/// ===============================
/// This is your fix
/// ===============================
// increment();
increment2();
/// ===============================
}, 100);
}
}html {
size: 100%, 100%;
background-color: #f2f2f2;
}
h1 {
font-Family: Arial;
color: #5573A9;
font-size: 40px;
position: static;
}
body {
display: block;
margin: 8px, dotted line;
background-color: #f2f2f2;
}
#output {
position: center;
width: 120px;
height: 25px;
background-color: #CCC;
border: 3px solid #999;
}
#output2 {
position: relative;
width: 120px;
height: 25px;
background-color: #CCC;
border: 3px solid #999;
}
table {
display: table;
border-collapse: seperate;
border-spacing: 52px;
border-color: #FFF;
}<table>
<tr>
<th>Bin</th>
<th>Bulk</th>
</tr>
<tr>
<td>
<p id="output"></p>
<div id="controls">
<button id="startPause" onclick="startPause()">Start</button>
<button onclick="reset()">Reset</button>
</div>
</td>
<td>
<p id="output2"></p>
<div id="controls2">
<button id="startPause2" onclick="startPause2()">Start</button>
<button onclick="reset2()">Reset</button>
</div>
</td>
</tr>
</table>