用51单片机实现对开关的智能控制，对开关进行定时控制，能够显示准确的时间及进行时间设定，定时开/关多路开关电路，并带有灯亮提示及报警功能。-With 51 single-chip realization of the intelligent control of the switch, the switch timing control, able to show accurate time and time settings, timer on/off multi-way switch cir