/// <summary> /// 固定长度的随机字符串 /// </summary> /// <param name="length">长度</param> /// <returns>随机串</returns> public static String getRandStringEx(int length) { char[] charList = {'0','1','2','3','4','5','6','7','8','9', 'A','B','C','D','E','F','G','H','I','J','K','L','M', 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z', 'a','b','c','d','e','f','g','h','i','j','k','l','m', 'n','o','p','q','r','s','t','u','v','w','x','y','z'}; char[] rev = new char[length]; Random f = new Random(); for (int i = 0; i < length; i++) { rev[i] = charList[Math.Abs(f.Next(127)) % length]; } return new String(rev); }