private void 添加ToolStripMenuItem_Click(object sender, EventArgs e)
{
num = 1;
CategoryAddAndEdit ca = new CategoryAddAndEdit();
ca.ShowDialog();
}
private void 修改ToolStripMenuItem_Click(object sender, EventArgs e)
{
num = 0;
cm.Id = int.Parse(this.dataGridView1.CurrentRow.Cells[0].Value.ToString());
cm.Lx = this.dataGridView1.CurrentRow.Cells[1].Value.ToString();
CategoryAddAndEdit ca = new CategoryAddAndEdit();
ca.ShowDialog();
}