ң÷ ң˵顾ϸܡǺܶû֪ң÷ңҲ֪ң˵ôá
صЩ°װ˻еǲ֪ң÷Լңֲ֪ң˵ôûΪҽЩ⡣
1.סңü2룬LED()ɰѧϰ״̬;
2.һ»ңҪѧϰļLED()˸ʱѧϰ״̬;
3.ң͵ӻңķͷ׼һֱϾԼ13cmµӻң1ҷſ;
4.ѧϰɹңLED()˸ºֳٴѡѧϰѧϰ;
5.Ҫѧϰظ2-4;
6.ѧϰϰңü沢˳ѧϰ״̬LED()Ϩ
c) ѧϰѡ״̬͵ȴź״̬°ü˳ѧϰܡ
d) ѧϰͬһĽѧϰΣͬһѧϰκܹѡ˼ѧϰ˼ѧϰ;ѧϰ½ѧϰܺѡ˼ѧϰѧϰ󽫸ǵǰѧϰ롣
1.ӻ򿪣ң׼ӣסá(Լ)ֱָʾɿ
2.ÿһΡ+ңᷢһ룬ָʾƻ˸һΣ˲ֱӻϳ֡ţȻһ¡áɣʱָʾ
3.ǷвãֱҵȷĴ롣
ע+ǰп໥лá+ʱ֡ʱûмʱֹͣáʱһء
1.ӻ򿪣ң׼ӻסá(Լ)ֱָʾɿ
2.һ¡ԴָʾƲ˸Զӻ֡ʱΡáָʾϡ
3.ǷвãֱҵȷĴ롣
ϣ㿴СΪܵĻң÷Լң˵ʹüԺڼгɹĽлң÷ȷʹң˵飬ϣܹѡ
ңͼƬ
ңò ңò ֵܶͥӻУԵӻлרлңûԵӻĲǺܶûң÷װ֮СܽһϸĻңò裬ϣа
ֵܶͥӻУԵӻлרлңûԵӻĲǺܶûң÷װ֮װСܽһϸĻңò裬ϣа
һҵңá۲ledɰ˵ңѾѧϰ״̬
ڶһ»ңҪѧϰļLEDƣ˸ʱѧϰ״̬ע⣬ѧϰ״̬14ڲѡ񰴼Զ˳ѧϰ״̬
ң͵ӻңķͷ׼һֱϾԼ13cmµӻң1ҷſ õԴͳңĵԴֱеңĵԴָʾƱΪɫ֮еĵָʾͬʱϰңĵԴ Ȼ󿴼еӰĺɫָʾ𣬽Űüɣָʾ𡣱ʾеĵԴѾѧ˵ӵĵԴԿƵˡ
ĲѧϰɹңLEDƣ˸ºֳٴѡѧϰѧϰ
岽ֻҪظǰĲ輴ɡѧϰϰңá沢˳ѧϰ״̬LEDƣϨ