base64_encode_decode.rb

#! /usr/bin/ruby -w
# encode and decode use ruby base64 lib
# use strict model to avoid "\n" problem every 76 characteres

require 'base64'

decode_string = Base64.strict_encode64(string)
encode_string = Base64.strict_decode64(string)

base64 编码默认每 76 个字符添加 \n，这往往导致字符串错误，可以使用严格的编码模式代替，Base64.strict_endcodee64(str)