/// <summary>
/// 获取验证码
/// </summary>
/// <returns></returns>
public ActionResult yzm()
{
ValidateCodeHelper vch = new ValidateCodeHelper();
string code = vch.GetRandomNumberString(4);
Tools.WriteCookie("loginCode", code, 2);
return(File(vch.CreateImage(code), "image/jpeg"));
}
public FileResult ValidateCode()
{
ValidateCodeHelper validateCode = new ValidateCodeHelper();
string code = validateCode.GetRandomNumberString(4);
TempData[VALIDATECODE] = code;
byte[] bytes = validateCode.CreateImage(code);
return(File(bytes, @"image/jpeg"));
}