/// <summary>
/// 获取验证码
/// </summary>
/// <returns></returns>
public ActionResult GetValidateCode()
{
RandomCode randomCode = new RandomCode();
string code = randomCode.CreateValidateCode(6);
Session["ValidateCode"] = code;
byte[] bytes = randomCode.CreateValidateGraphic(code);
return(File(bytes, @"image/jpeg"));
}
