[Amazon ]去元音 get rid of vowels

去元音：
http://www.1point3acres.com/bbs/forum.php?mod=viewthread&tid=105773&extra=page%3D1%26filter%3Dsortid%26sortid%3D311%26sortid%3D311

//string 是題目給的字符串
StringBuffer sb = new StringBuffer();
String v = "aeiouAEIOU";
for(int i = 0; i < string.length(); i++){
if(v.indexOf(string.charAt(i)) > -1) continue;
sb.append(string.charAt(i));
return sb.toStirng();