还要加个textbox显示结果:text3----代码----private sub command1.click()text3.text =val(text1.text) val(text2.text)end subprivate sub command2.click()text3.text=val(text1.text) - val(text2.text)end subprivate sub command3.click()text3.text=val(text1.text) * val(text2.text)end subprivate sub command4.click()tex...