private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
    {
        if (e.RowIndex >= 0)
        {
            DataGridViewColumn column = dataGridView1.Columns[e.ColumnIndex];
            if (column is DataGridViewButtonColumn)
            {
                //这里可以编写你需要的任意关于按钮事件的操作~
                MessageBox.Show("按钮被点击");
            }
        }
    }