private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)

        {

            if (e.RowIndex >= 0)

            {

                DataGridViewColumn column = dataGridView1.Columns[e.ColumnIndex];

                if (column is DataGridViewButtonColumn)

                {

                   //要做的事
                   dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString()//获取点击行的第二个表格的值

                }

            }

        }