js小问题

来源：百度知道 编辑：UC知道 时间：2024/06/07 03:31:14
<hltml>
<head>
<title>asd
</title>
<script language="javascript">
function start()
{
var num=Math.floor(Math.random()*6)+1;
document.getElementById("box").innerHTML="<font size=5 color=red>"+num+"</font>";
timer=setTimeout("start()",100);
return num;
}
function stop()
{
clearTimeout(timer);
}
</script>
</head>
<body>
<div id=box></div>
<form>
<select>
<option>请选择</option>
<option value=4>大</option>
<option value=3>小</option>
</select>
<input type=button value="开始" onclick="start()">
<input type=button value="停止" onclick="stop()">
</form>
</body>
</html>
怎么显示对象不支持

stop是个关键字

<hltml>
<head>
<title>asd
</title>
<script language="javascript">
function Mystart()
{
var num=Math.floor(Math.random()*6)+1;
document.getElementById("box").innerHTML="<font size=5 color=red>"+num+"</font>";
timer=setTimeout("Mystart()",100);
return num;
}
function Mystop()
{
clearTimeout(timer);
}
</script>
</head>
<body>
<div id=box></div>
<form>
<select>
<option>请选择</option>
<option value=4>大</option>
<option value=3>小</option>
</select>
<input type=button value="开始" onclick="Mystart()">
<input type=button value="停止" onclick="Mystop()">
</form>
</body>