A set of convenient tools for converting a character to unicode and converting a unicode to character.
Go here and download it directly.
uni 9
==>Code(9) = 57
uni √
==>Code(√) = \u221a
uni 好
==>Code(好) = \u597d
chr 65
==>chr(65) = A
chr \xa5
==>chr(\xa5) = chr(165) = ¥
chr \u4F60\u597d\u554a\uff0c\u670b\u53cb\uff01
==>chr(\u4F60...\uff01) = 你好啊,朋友!
base64 Hello
==>SGVsbG8=
(Base64 Encoding)base64 你好
==>5L2g5aW9
(Base64 Encoding)base64 5pyL5Y+L
==>NXB5TDVZK0w=
(Base64 Encoding)朋友
(Base64 Decoding)