Asp.net动态验证码下载

[weixin_39820535]

public StringUnit()
{
//
//TODO: 在此处添加构造函数逻辑
//
}

/// <summary>
/// 生成随机数
/// </summary>
/// <returns></returns>
private string GenerateCheckCode()
{
#region
int number;
char code;
string checkCode = String.Empty;

System.Rando
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