字符串操作技巧

1、遞歸實現字符串倒序

public static String reverse(String originStr) {
   if(originStr == null || originStr.length() <= 1) 
            return originStr;
    return reverse(originStr.substring(1)) + originStr.charAt(0);
    }

2、字符串轉碼

String s1 = "你好";
String s2 = new String(s1.getBytes("GB2312"), "ISO-8859-1");