setInterval
2018-10-08 本文已影响0人
Jadon7
<!DOCTYPE html>
<html>
<head>
<title>setInterval</title>
<script type="text/javascript">
window.onload=function()
{
var oBtn1=document.getElementById('btn1');
var oBtn2=document.getElementById('btn2');
var setIn;
oBtn1.onclick=function()
{
setIn=setInterval(function()
{
alert('a');
},1000);
}
oBtn2.onclick=function()
{
clearInterval(setIn);
}
}
</script>
</head>
<body>
<input id="btn1" type="button" value="开启">
<input id="btn2" type="button" value="关闭">
</body>
</html>
