C#实现的Base64算法，可对任意文件实现加解密-C# implementation of Base64 algorithm can achieve any file encryption and decryption

C#写的加密解密源码： 将字符串转化为UTF-8的ByteArray后，使用TripleDES算法对字符串进行加密，加密后的字符串再转化为Base64字符串。-Written in C# encryption and decryption source code: the string converted to UTF-8 ByteArray using the TripleDES algorithm to encrypt the string, the encrypted string is