历史修改记录
（三）2015.10.18
1.修复RSA的长度限制问题
2.增加COM口读操作
3.增加QR码的删除操作
4.增加https的POST和GET操作
（二）2015-05-03 wxj
1.增加取硬盘的序列号和名称
2.增加http的POST和GET操作
（一）2015.03.27 wxj，主要功能如下：
1.以非图片方式在Datawindow中显示QR二维码
2.GBK和UTF-8编码相互转换
3.加密解密，RSA加密解密
4.取汉字拼音首字母
5.文件哈希算法：MD5、SHA1、RIPEMD160、SHA256、Tiger、SHA512、Whirlpool、CRC32
6.字符串哈希算法：MD5、SHA1、RIPEMD160、SHA256、Tiger、SHA512、Whirlpool、CRC32
7.URI编码解码
8.Base64编码解码

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(three) 2015.10.18
1. fixed length restrictions on RSA
2. increase COM read operation
3., increase the deletion of QR code
4. increase HTTPS's POST and GET operations
(two) 2015-05-03 wxj
1. increase the serial number and name of the hard drive
2. increase HTTP's POST and GET operations
(1) 2015.03.27 wxj, the main functions are as follows:
1. display the QR two-dimensional code in Datawindow without pictures
2.GBK and UTF-8 encode each other
3. encryption and decryption, RSA encryption and decryption
4. take the initial letters of Chinese characters
5. file hash algorithm: MD5, SHA1, RIPEMD160, SHA256, Tiger, SHA512, Whirlpool, CRC32
6. string hash algorithm: MD5, SHA1, RIPEMD160, SHA256, Tiger, SHA512, Whirlpool, CRC32
7.URI encoding and decoding
8.Base64 encoding and decoding
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