数组的字符串怎么随机组合

C# code

string[] orders = new string[]{ "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"};

大虾们，请问怎么让6个字符串随机组合？

[解决办法]
这个问题 算法可以解决的
利用高中排列组合知识
[解决办法]
全排列组合算法，网上搜去，有
[解决办法]

C# code

   private string GetRandomCode()        {            char[] chars = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };            string code = string.Empty;            for (int i = 0; i < 4; i++)            {                Random rnd = new Random(GetRandomSeed());                code += chars[rnd.Next(0, 10)].ToString();            }            return code;        }        private int GetRandomSeed()        {            byte[] bytes = new byte[4];            System.Security.Cryptography.RNGCryptoServiceProvider rng = new System.Security.Cryptography.RNGCryptoServiceProvider();            rng.GetBytes(bytes);            return BitConverter.ToInt32(bytes, 0);        }
[解决办法]
SQL code
--发个SQL SERVER 版本的declare @sql varchar(6) set @sql=''select top 6 @sql=@sql+char(number) from master..spt_values where number between 48 and 57 or number between 97 and 122and type='p' order by newid()select @sqlgo 10/*60xryadvs01kzkbgt6f4siwr8gihc9gw3kdqhg4q18ng0p8fo7dnfad1vx9q*/
[解决办法]
探讨

C# code

string[] orders = new string[]{ "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", "……