输入字符串，垂直输出，例如：输入“wellcome”“to”“guangzhou”
输出： u
e o
m h
o z
c g
l n
l a
e o u
w t g
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>New Web Project</title>
</head>
<body>
<p>look:</p>
<script type="text/javascript">
function layOut(s){
var maxLength = 0;
var innerHtml = "";
var p = document.getElementsByTagName("p");
for(var i = 0; i < s.length; i++){
if(s[i].length > maxLength){
maxLength = s[i].length;
}
}
for(var i = maxLength-1; i >= 0; i--){
for(var j = 0; j < s.length; j++){
if(s[j].length > i){
innerHtml += s[j][i];
}
else{
innerHtml += " ";
}
}
innerHtml = innerHtml + "<br/>";
}
p[0].innerHTML = innerHtml;
}
layOut(new Array("welcome","to","guangzhou"));
</script>
</body>
</html>