说明：  以javaScript连接串口的小工具，市面上串口工具很多，在小工具的特点是完全可以由你配置，因为是javascript的嚒，由于用了MSCOMM32.OCX，就是说只能在windows下使用
(JavaScript serial port to connect a small tool, serial port tools on the market many of the features of the gadget is entirely up to you to configure, because it is javascript in Me, as used MSCOMM32.OCX, that can only be used under windows)