C# 生成随机字符串, 随机数, 字母+数字
using System; namespace ConsoleApp3 { class Program { static void Main(string[] args) { Console.WriteLine(GetNonceStr(5)); Console.Read(); } /// <summary> /// 生成随机字符串 /// </summary> /// <param name="length">字符串长度</param> /// <returns></returns> static string GetNonceStr(int length) { char[] chars = { '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' }; string result = ""; Random rnd = new Random(Guid.NewGuid().GetHashCode()); for (int i = 0; i < length; i++) { result += chars[rnd.Next(chars.Length)]; } return result; } } }