//删除会员信息，假删
private void btnDelete_Click(object sender, EventArgs e)
{
if (dgvMemmber.SelectedRows.Count > 0)
{
var id = Convert.ToInt32(dgvMemmber.SelectedRows[0].Cells[0].Value.ToString());
var msg = bll.DeleteMemberInfoByMemberId(id) ? "删除成功" : "删除失败";
MessageBox.Show(msg);
LoadMemberInfoByDelFlag(0);
}
}