花样流水灯：8个发光二极管D1~D8分别接在单片机P0.0-P0.7端口上，一个开关接在P3.0上。要求输出端口输出“0”时，发光二极管亮。开关闭合时，开始按P0.0+P0.7、P0.1+P0.6、P0.2+P0.5、P0.3+P0.4的顺序依次点亮LED，再按P0.3+P0.4、P0.2+P0.5、P0.1+P0.6、P0.0+P0.7的顺序点亮LED，重复循环。开关断开时，立刻停止点亮指示灯。-Mood Light water: 8 LEDs D1 ~ D8, respectively, connected to the microcontroller ports P0.0-P0.7, P3.0 on a switch connected. Required output port " 0" , the light-emitting diode light. Switch is closed, starting at P0.0+ P0.7, P0.1+ P0.6, P0.2+ P0.5, P0.3+ P0.4 in the order light LED, then P0.3+ P0.4, P0.2+ P0.5, P0.1+ P0.6, P0.0+ P0.7 order light LED, repeat the cycle. Switch off, stop light indicator.