/// <summary>
/// 注册时生成验证码图片
/// </summary>
/// <param name="height"></param>
/// <param name="width"></param>
/// <returns></returns>
public ActionResult RandCode(int height, int width)
{
if (height > 100)
{
height = 100;
}
if (width > 200)
{
width = 200;
}
string randCode = string.Join("", Randomizer.RandomArrary(10, 4));
this.HttpContext.Session.SetString("LoginRandCode", randCode);
byte[] imgs = null;
using (var ms = DrawingHelper.CreateImage(randCode, height, width))
imgs = ms.ToArray();
return(new FileContentResult(imgs, "image/gif"));
}
