Base64编码解码高速 1.1 零售版

Base64是壹种使用64击的位置计数法。他应用2的最大回方来代理仅能输出打印的ASCII字符。此让它可以使用起来作为邮件的传输编码。在base(包含完整的数据库)64中的变量应用文字A-Z、a-z与0-9，如此共有62只文字，用来作为开始的64数量字，最后两个用来作为数字的标记在不一样的系统中且不一样。若干象uuencode(二进制转换为文本)的其它编码办法，与以后binhex的版本应用不一样的64文字合来代表6只二数制数字，但是他们勿叫base(包含完整的数据库)64




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