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//ÉÏ´«Í¼Æ¬
    public void UpdataImage()
    {
        //»ñÈ¡Ñ¡ÔñµÄÎļþ
        string fileName = fudImage.FileName;
        //»ñÈ¡ºó׺Ãû
        string fileExt = Path.GetExtension(fileName);

        if (fileExt != ".jpg")
        {
            return;
        }
        //»ñÈ¡·þÎñÆ÷¶ËµÃÉÏ´«µÄ·¾¶
        string serverPath = Server.MapPath("/Web/images");
        //Éú³ÉÎļþ¼Ð
        string createDirectory = serverPath + "\\" + "Card";
        fudImage.SaveAs(createDirectory + "\\" + fileName);
    }
//ɾ³ýÎļþ
    public void DelFile(string path)
    {
        System.IO.FileInfo file = new FileInfo(path);
        if (file.Exists)
        {
            file.Delete();
        }
    }