用单刀双掷开关即可. (```虚点是填充物,不要看)
````````````````-----------------
十---@-----------```````````----------------十
`|````灯```````-----------------```````````````|
`|````````````开关a````````````开关b```````|
`|``````````````````````````````````````````````|
`|``<--------------电源两端-------------->``|
我只能画出这样给你看了,两个开关中间那个开关应该搭在中间的线上,如果a,b同时搭在同一根上,则灯亮;此时把拨任意一个开关,灯灭;再拨任意开关,灯再亮
│-- /-------------\
│ -----------------@deng-----│
电源 │
电源
就这样 就看你看得懂不了
我知道~~~但怎么给你讲啊~~~~~~~~~~~~~~~
这个图怎么画啊?!
画串联的.