delphi Base64Encode加密-encryption delphi Base64Encode

自己写的一个 Base64　编码解码工具，fcl 里已经有了，写这个主要是为了让大家了解 Base64 编码原理-His writing a Base64 encoding and decoding tools, fcl were already there, writing this mainly to let everyone understand the principles of Base64 Encoding