覆盆子Pi Pico的莫尔斯函数，
Morse functions for Raspberry Pi Pico, (2023-09-03, Others, 0KB, 下载0次)
数字图像处理（冈萨雷斯）第二版答案，英文版
Digital image processing (Gonzalez) the answer to the second edition of the English version (2009-03-19, Others, 584KB, 下载2次)
一个 温度nrf905 和at89s52加 红外线发射和接受电路图 可以用到工程上面 很好
AT89S52 a temperature increase nrf905 and infra-red transmitting and receiving circuitry can be used in the above works well (2008-03-08, Others, 179KB, 下载166次)