基于图形界面MFC的DES加解密算法。从路径中读取加密文件，自行输入密钥，解密或者解密内容以文件形式保存在文件夹下。所有工程均已提交在压缩包里，打开dsw即可以运行。是学习密码学的途径，也是密码学DES算法的重要实验-GUI-based MFC DES encryption and decryption algorithms. Reads the encrypted files from the path, enter their own key to decrypt or decrypt th

C# 遍历压缩包并读取压缩包的内容到excel中(C# traverses the compressed package and reads the contents of the compressed package to excel)