為什么while（mynum=>0）頁面就會崩了
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>do...while</title>
<script type="text/javascript">
? ? var mynum =6;//mynum初值化數(shù)值為6
do
{
document.write("數(shù)字:"+mynum+"<br/>");
mynum=mynum-1;
}
while(mynum>0)
</script>
</head>
<body>
</body>
</html>
2020-12-08
<script type="text/javascript">
?var mynum =6;//mynum初值化數(shù)值為6
do
{
document.write("數(shù)字:"+mynum+"<br/>");
mynum=mynum-1;
}
while( mynum>=1? ? ? )
</script>
2019-08-07
試試（mynum>=0）