private void toolStripBtnWriteAddr_Click(object sender, EventArgs e) { Protocol645 p645 = new Protocol645(); if (toolStripTbAddr.Text != "") { string addr = toolStripTbAddr.Text.PadLeft(12, '0'); if (Functions.IsNum(addr)) { p645.WriteAddress(addr); } else { MessageBox.Show("请不要输入数字以外的字符!"); } } else { MessageBox.Show("请输入表地址!"); } }