//验证码<img alt="验证码" src="/VerificationCode/Index" id="code_img" title="看不清请点击！" />
// GET: /VerificationCode/
public ActionResult Index()
{
VerifyCode vc = new VerifyCode();
string num = vc.MakeValidateCode();
System.Web.HttpContext.Current.Session["code"] = num.ToLower();//写入session
byte[] bytes = vc.CreateCheckCodeImage(num);
return(File(bytes, @"image/jpeg"));
}
