這個(gè)if...else嵌套語句用switch的話，應(yīng)該怎么寫？
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>if...else</title>
<script type="text/JavaScript">
var myage =30;//趙紅的年齡為99
if(myage<=44)
? {document.write("青年");}
else if(myage<=59)
? {document.write("中年人");}
else if(myage<=89)
? {document.write("老年人");}
else????? ?
? {document.write("長(zhǎng)壽老年人");}
</script>
</head>
<body>
</body>
</html>
2017-01-03
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>if...else</title>
<script type="text/JavaScript">
var myage =30;//趙紅的年齡為99
switch(myage)
{
????case 1:
????case 2:
????''''''
????case 44:document.write("青年"); break;
[其他的自己弄了。這么麻煩，為什么想用switch]
}
</script>
</head>
<body>
</body>
</html>