protected void btnXML_Click(object sender, EventArgs e)
{
string xml = "select id,img,imgname,title,content,creattime from img ";
conn.Open();
SqlCommand cmd = new SqlCommand(xml,conn);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
ds.WriteXml(Server.MapPath("XML3.xml"));
conn.Close();
ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('导入成功')</script>");
}