你要驱动的LCD 3COM 6SEG 要用驱动IC 或 锁存器 下面是HT1621驱动程序，用电阻分压和锁存器成本低点，驱动芯片占用I/O口少-You have to drive LCD 3 COM 6 SEG with driver IC or latches Below is HT1621 driver, with resistance points pressure and latches cost low, drive chip takes up the I/O mo