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public static string RandCode(int N) { char[] arrChar = new char[] { ‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘, ‘8‘, ‘9‘ }; StringBuilder num = new StringBuilder(); Random rnd = new Random(Guid.NewGuid().GetHashCode()); for (int i = 0; i < N; i++) { num.Append(arrChar[rnd.Next(0, arrChar.Length)].ToString()); } return num.ToString(); }标签：
原文地址：http://www.cnblogs.com/weiaiy/p/5737794.html
