能够实现开始后按一定规律流水，停止后保持二极管点亮状态不变，故障时报警，且状态停止，故障排除时，状态流转继续（哈工大单片机大作业内附proteus原理图）-After the start of water according to certain rules, keep the diode light state after the cessation of the same fault alarm stop state, Troubleshooting state flow continue