">6×2或20×4字符LCD显示屏很便宜就能买到而且插到Pi的GPIO引脚上很方便。我写文章用的 </font> <a href="http://www.raspberrypi-spy.co.uk/2012/07/16x2-lcd-module-control-using-python/" target="_blank" style="border: 0px none rgb(51, 102, 153); color: rgb(51, 102, 153); display: inline; font-style: normal; font-variant: normal; font-weight: normal; font-size: 14px; line-height: 21px; font-family: Tahoma, 'Microsoft Yahei', Simsun; margin: 0px; outline: rgb(51, 102, 153) none 0px; pa