Python3 各编码类型转换

源代码：

# 转码规则：
# utf-8   > decode > unicode
# utf-8   < encode < unicode

# gbk   > decode > unicode
# gbk   < encode < unicode

import sys
print(sys.getdefaultencoding())
# 字符串要先手动 encode指定其为某一编码的字节码之后，才能decode解码
text = '我爱你，中国~~~'
# print(type(text))
utf8 = text.encode('utf-8')
print('utf8:',utf8)
utf8_unicode = utf8.decode('utf-8')
print('utf8 解码 Unicode：',utf8_unicode)
print('Unicode 编码 utf8 ：',utf8_unicode.encode('utf-8'))

gbk = text.encode('gbk')
print('gbk:',gbk)
gbk_unicode = gbk.decode('gbk')
print('gbk 解码 Unicode：',gbk_unicode)
print('Unicode 编码 gbk ：',gbk_unicode.encode('gbk'))

utf8_gbk = text.encode('utf-8').decode('utf-8').encode('gbk')
print('utf8 转 gbk:',utf8_gbk)
gbk_utf8 = text.encode('gbk').decode('gbk').encode('utf-8')
print('gbk 转 utf8:',gbk_utf8)

运行结果：