<html> <head> </head> <body> <div id="clock"></div><input type="button" onclick="stop()" value="停止" /><input type="button" onclick="jixu()" value="继续" /> <script type="text/javascript"> var i =0; function clock(){ i ++; document.getElementById('clock').innerHTML = i; }
var time = setInterval(clock,1000); function stop(){ clearInterval(time); } function jixu(){ time = setInterval(clock,1000); } </script> </body> </html>
<head>
</head>
<body>
<div id="clock"></div><input type="button" onclick="stop()" value="停止" /><input type="button" onclick="jixu()" value="继续" />
<script type="text/javascript">
var i =0;
function clock(){
i ++;
document.getElementById('clock').innerHTML = i;
}
var time = setInterval(clock,1000);
function stop(){
clearInterval(time);
}
function jixu(){
time = setInterval(clock,1000);
}
</script>
</body>
</html>