,或者反过来转换. 讨论: 对于ASCII字符,可以使用内建的ord和chr方法实现需求: >>> chr(97)
'a'
>>> ord('a')
97 对于Unicode字符,需要使用ord和repr ,获得unicode字符的方法,使用unichr: >>> print ord(u'\u2020')
8224
>>> print repr(unichr(8224))
u'\u2020' 相关说明:

下面是python中对这几个方法的简单说明:
ord(...)     ord(c) -> integer         Return the integer ordinal of a one-character string. chr(...)     chr(i) -> character         Return a string of one character with ordinal i; 0 <= i < 256. repr(...)     repr(object) -> string         Return the canonical string representation of the object.     For most object types, eval(repr(object)) == object. unichr(...)     unichr(i) -> Unicode character         Return a Unicode string of one character with ordinal i; 0 <= i <= 0x10ffff.