Write a program to perform the following functions, when the 4* 4 keyboard zone button is pressed, the digital display numbers or letters corresponding experimental board marked.

4x4键盘显示\4-keyboard
...........\4-keyboard.__i
...........\4-keyboard.c
...........\4-keyboard.hex
...........\4-keyboard.lnp
...........\4-keyboard.LST
...........\4-keyboard.M51
...........\4-keyboard.OBJ
...........\4-keyboard.Opt
...........\4-keyboard.plg
...........\4-keyboard.Uv2
...........\4-keyboard_Opt.Bak
...........\4-keyboard_Uv2.Bak
4x4键盘显示

• 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．