<P>
<FORM id=form1 encType=multipart/form-data runat="server"></P>
<P><INPUT id=fileUp style="WIDTH: 80%" type=file name=fileUp runat="server">&nbsp;&nbsp;</P>
<P></FORM></P>  

      /////////////////////////////////////////////////////////////////////////////////

        string img = "";

        string rnd = sqldata.rndNum(); //随机生成文件名
        string filePath = "", fileExtName = "", mFileName, mPath, filetype;

        if ("" != fileUp.PostedFile.FileName)
        {
            filePath = fileUp.PostedFile.FileName;//取得文件路径
            fileExtName = filePath.Substring(filePath.LastIndexOf(".") + 1);
            filetype = fileUp.PostedFile.ContentType.ToString();

            if (filetype.Substring(0, 6) != "image/")
            {
                js.Alert("图片");
                return;
            }

            try
            {

                mPath = Server.MapPath("../../pimages/" );
                mFileName = filePath.Substring(filePath.LastIndexOf("\\") + 1); ;//取得文件名
                fileUp.PostedFile.SaveAs(mPath + rnd + "." + fileExtName);
                img = rnd + "." + fileExtName;

            }
            catch (Exception error)
            {
                Response.Write(error.ToString());
            }

        }

        /////////////////////////////////////////////////////////////////////////////////