再加一个按钮star，点击按钮计时器继续运行怎么实现呢
慕哥2132778
2019-07-15 16:23
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>计时器</title>
<script type="text/javascript">
function clock(){
var time=new Date();
document.getElementById("clock").value = time;
}
var i = setInterval(clock,1000);
</script>
</head>
<body>
<form>
<input type="text" id="clock" size="50" />
<input type="button" value="start" onclick="setInterval(clock,1000)">
<input type="button" value="Stop" onclick="clearInterval(i)"/>
</form>
</body>
</html>
4回答
-
- qq_慕九州8416717
- 2020-01-15 14:09:30
没用的 重新开始根本触发不了 有没有大神
-
- 慕运维6548256
- 2019-09-02 13:31:30
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>计时器</title>
<script type="text/javascript">
function clock(){
var time=new Date();
document.getElementById("clock").value = time;
}
var i=setInterval("clock()",1000);
function begin(){
i=setInterval("clock()",1000);
}
</script>
</head>
<body>
<form>
<input type="text" id="clock" size="50" />
<input type="button" value="Stop" onclick="clearInterval(i)" />
<input type="button" value="Begin" onclick="begin()" />
</form>
</body>
</html>
-
- linatz
- 2019-07-20 10:18:13
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>计时器</title>
<script type="text/javascript">
function clock(){
var time=new Date();
document.getElementById("clock").value = time;
}
var i=setInterval("clock()",100);
function setTime(){
var er=setInterval("clock()",100);
}
</script>
</head>
<body>
<form>
<input type="text" id="clock" size="50" />
<input type="button" value="Stop" onClick="clearInterval(i)" />
<input type="button" value="Begin" onclick="setTime()" />
</form>
</body>
</html> -
- 代码里成长
- 2019-07-17 17:13:46
<input type="button" value="Begin" onclick="setInterval(i)" />
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