<html>
<head>
<title>HTML示例</title>
<style type="text/css">
</style>
</head>
<body>
<script type="text/javascript">
// if 语句
/*
var a = 5;
if(a==5){
alert("5");
}else{
alert("6");
}
*/
// switch 语句
/*
var b = 6;
switch(b){
case 3:
alert("3");
break;
case 6:
alert("6");
break;
default:
alert("other");
}
*/
// while语句
/*
var num = 5;
var i = 3;
while(i){
alert(num);
i -= 1;
}
*/
// for循环
for (var m=5;m<10 ;m++ )
{
alert(m);
}
</script>
</body>
</html>