第一题: 1、通电后led1,led2亮。 2、sw1按下，led1、led2与led3、led4交替闪烁。松开后led1、led2熄灭，led3、led4亮起。 3、再次按下，led1、led2与led3、led4交替闪烁。松开后led3

Packet : 题目.txt filelist

• We are an exchange download platform that only provides communication channels. The downloaded content comes from the internet. Except for download issues, please Google on your own.
• The downloaded content is provided for members to upload. If it unintentionally infringes on your copyright, please contact us.
• Please use Winrar for decompression tools
• If download fail, Try it againg or Feedback to us.
• If downloaded content did not match the introduction, Feedback to us，Confirm and will be refund.
• Before downloading, you can inquire through the uploaded person information

Nothing．