private void button1_Click(object sender, EventArgs e)
{
frmProductManage frmPM = new frmProductManage();
frmPM.ShowDialog();
}
private void 信息录入toolStripMenuItem1_Click(object sender, EventArgs e)
{
frmProductManage frmPM = new frmProductManage();
frmPM.ShowDialog();
}