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BASE64编码原理与Golang代码调用-暗黑魔君腾云端
source link: http://blog.51cto.com/clovemfong/2160384
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一.概念简介Base64是一种基于64个可打印字符来表示二进制数据的表示方法。由于2^6=64，所以每6个比特为一个单元，对应某个可打印字符。3个字节有24个比特，对应于4个Base64单元，即3个字节可由4个可打印字符来表示。它可用来作为电子邮件的传输编码。在Base64中的可打印字符包括字母A-Z、a-z、数字0-9，这样共有62个字符，此外两个可打印符号在不同的系统中而不同。Base64常用
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