Python 16进制与字符串互转

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1. >>> binascii.b2a_hex(u"你好啊".encode("utf8"))  
2. 'e4bda0e5a5bde5958a'  
3. >>>  
4. >>>  
5. >>> binascii.b2a_hex(u"你好啊".encode("gbk"))  
6. 'c4e3bac3b0a1'  
7. >>> binascii.a2b_hex("e4bda0e5a5bde5958a")  
8. '\xe4\xbd\xa0\xe5\xa5\xbd\xe5\x95\x8a'  
9. >>> binascii.a2b_hex("e4bda0e5a5bde5958a").decode("utf8")  
10. u'\u4f60\u597d\u554a'  
11. >>> print binascii.a2b_hex("e4bda0e5a5bde5958a").decode("utf8")  
12. 你好啊  
13. >>> binascii.b2a_hex(u"你好啊121A号".encode("gbk"))  
14. 'c4e3bac3b0a131323141bac5'  
15. >>> '48656c6c6f'.decode('hex')  
16. 'Hello'  
17. >>> 'c4e3bac3b0a131323141bac5'.decode('hex')  
18. '\xc4\xe3\xba\xc3\xb0\xa1121A\xba\xc5'  
19. >>> print 'c4e3bac3b0a131323141bac5'.decode('hex')  
20. 你好啊121A号  
21. >>> u"你好啊121A号".encode("gbk").encode('hex')  
22. 'c4e3bac3b0a131323141bac5'  
23. >>>