<!DOCTYPE html>
<html>
<head>
<title>函数调用</title>
<meta charset="utf-8">
<meta name="keywords" content="keyword1,keyword2,keyword3">
<meta name="description" content="this is my page">
<meta name="content-type" content="text/html; charset=UTF-8">
<script type="text/javascript">
var timer=null;
var num=0;
var bool=true;
function onChange()
{
this.shuchu=function(i)
{
console.log(i);
timer=window.setTimeout(function()
{
i++;
num=i;
shuchu(i);
},1000);
};
if(bool)
{
shuchu(0);
}
}
function doStart()
{
bool=false;
var f=new onChange();
num++;
f.shuchu(num);
}
function doStop()
{
window.clearTimeout(timer);
}
</script>
</head>
<body>
<input type="button" value="计数" onclick="onChange()">
<input type="button" value="开始" onclick="doStart()"/>
<input type="button" value="停止" onclick="doStop()"/>
</body>
</html>