复制代码 代码如下:

/// <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);

}