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Python字符编码与转码

2018-04-18 20:35  钱先生  阅读(256)  评论(0)  编辑  收藏  举报

字符编码与转码

 

注: 该图转自 http://www.cnblogs.com/luotianshuai/p/5735051.html.

 

 Python2 解码,编码

 1 #Python2
 2 #-*-  coding:utf-8 -*-
 3 
 4 s = "你好"
 5 s_to_unicode = s.decode("utfi-8")
 6 s_to_gbk = s.decode("utf-8").encode("gbk") #先用指定码表解码,再用指定码表编码
 7 print(s_to_bgk)
 8 print(s_to_unicode)
 9 
10 
11 gbk_to_utf8 = s_to_gbk.decode("gbk").encode("utf-8")
12 print(gbk_to_utf8)
13 
14 
15 
16 s1 = u"你好"  ＃前面加ｕ代表码表是Unicode
17 print(s1)
18 
19 
20 
21 # 打印系统默认编码
22 import sys
23 print(sys.getdefaultencoding())

 

Python3 解码编码

# -*- encoding: utf-8 -*-
#Python3 默认码表是Unicode

s = "你好" (Unicode,因为Python3默认数据的码表是Unicode. 改文件码表不影响其内容的数据存储形式)
s_gbk = s.encode("gbk")
print(s_gbk)  # gbk
print(s.encode())  # utf-8


gbk_to_utf8 =  s_gbk.decode("gbk").encode("utf-8")
print("utf8",gbk_to_utf8)

 

1 s = "你好"
2 print(s.encode("utf-8").decode("utf-8).encode("gb2312").decode("gb2312")) #encode("gb2312")后变成bytes; 之后再decode("gb2312")又转成字符串