DataGridViewButtonColumn MyColumn = new DataGridViewButtonColumn();
                {
                    MyColumn.HeaderText = "操作";
                    MyColumn.Name = "操作";
                    MyColumn.DefaultCellStyle.BackColor = Color.Gray;
                    MyColumn.DefaultCellStyle.ForeColor = Color.Black;
                    MyColumn.FlatStyle = FlatStyle.Standard;
                    MyColumn.DisplayIndex = 0;
                }
                ModifydataGridView.Columns.Add(MyColumn);