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  • 生成 n 位验证码的函数

    public static string GenerateCaptchaCode(int len)
    {
      char[] data = {'a','c','d','e','f','g','k','m','p','r','s','t','w','x','y','3','4','5','7','8' };
      StringBuilder sbCode = new StringBuilder();
      Random rand = new Random();
      for(int i=0;i<len;i++)
      {
        char ch = data[rand.Next(data.Length)];
        sbCode.Append(ch);
      }
      return sbCode.ToString();
    }
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  • 原文地址:https://www.cnblogs.com/lbjcoder/p/8386247.html
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