C#生成指定长度随机数

1 public static string GetRandomString(int iLength)
2 {
3     string buffer = "0123456789";// 随机字符中也可以为汉字（任何）
4     StringBuilder sb = new StringBuilder();
5     Random r = new Random();
6     int range = buffer.Length;
7     for (int i = 0; i < iLength; i++)
8     {
9         sb.Append(buffer.Substring(r.Next(range),1));
10     }
11     return sb.ToString();
12 }

 借鉴原文：https://blog.csdn.net/sds15732622190/article/details/51426527