private void button_ReaderManage_Click(object sender, EventArgs e)
        {
            frm_InfoManage InfoManage = new frm_InfoManage();

            InfoManage.Show();
            //个人信息窗体
        }
 private void button_PersonalInfo_Click(object sender, EventArgs e)
 {
     if (frm_Login.Login == "Reader")
     {
         frm_Info Info = new frm_Info();
         Info.Show();
     }
     else if (frm_Login.Login == "" || frm_Login.Login == "User")
     {
         frm_InfoManage InfoManage = new frm_InfoManage();
         InfoManage.Show();
     }
 }