1.Unicode转换成普通的Python字符串:
"编码(encode)"
1. unicodestring=u"Hello world"
2. utf8string=unicodestring.encode("utf-8")
3. asciistring=unicodestring.encode("ascii")
4. isostring=unicodestring.encode("ISO-8859-1")
5. utf16string=unicodestring.encode("utf-16")
2.将普通的Python字符串转换成Unicode: "解码(decode)"
1. plainstring1=unicode(utf8string,"utf-8")
2. plainstring2=unicode(asciistring,"ascii")
3. plainstring3=unicode(isostring,"ISO-8859-1")
4. plainstring4=unicode(utf16string,"utf-16")
