python Unicode 编码解码

 1 #将Unicode转换成普通的Python字符串:"编码(encode)"
   2 unicodestring = u"Hello world"
   3 utf8string = unicodestring.encode("utf-8")
   4 asciistring = unicodestring.encode("ascii")
   5 isostring = unicodestring.encode("ISO-8859-1")
   6 utf16string = unicodestring.encode("utf-16")
   7 
   8 
   9 #将普通的Python字符串转换成Unicode: "解码(decode)"
  10 plainstring1 = unicode(utf8string, "utf-8")
  11 plainstring2 = unicode(asciistring, "ascii")
  12 plainstring3 = unicode(isostring, "ISO-8859-1")
  13 plainstring4 = unicode(utf16string, "utf-16")
  14 
  15 assert plainstring1==plainstring2==plainstring3==plainstring4