代码……运行不粗来
来源：8-5 计时器setTimeout()
努力做梦打怪兽
2015-06-20 21:06
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>计时器</title>
</head>
<script type="text/javascript">
var num=0;
function startCount() {
document.getElementById('count').value=num;
num=num+1;
setTimeout("numCount()",1000);
}
</script>
</head>
<body>
<form>
<input type="text" id="count" />
<input type="button" value="start" onclick="numCount()">
</form>
</body>
</html>
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1回答
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- 不断滴自我催眠
- 2015-06-21 09:33:34
你的function startContent ```调用的名称却是 numCount
setTimeout里使用方法方式不对
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>计时器</title> </head> <script type="text/javascript"> var num=0; function numCount() { document.getElementById('count').value=num; num=num+1; setTimeout(numCount,1000); } </script> </head> <body> <form> <input type="text" id="count" /> <input type="button" value="start" onclick="numCount()"> </form> </body> </html>
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