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示例： def isAString(obj):     return isinstance(obj, basestring)    # isinstance(obj, (str, unicode)). print isAString('abc')  # True print isAString(u'您好')  # True print isAString(list()) #

示例： def func(item): pass results = map(func,iterable) map实现代码： def map(func, seq): mapped_seq = [] for eachItem in seq: mapped_seq.append(func(eachItem)) ret

示例： import string s = 'abcd--dcba' # 参数from和to的长度必须一致 table = string.maketrans('', '') # type(table) is 'str' print(s.translate(table)) # 输出 abcd--dcba table = string.maketrans('ab',

示例： test.txt内容： aaaa bbbb cccc file_object = open(r'c:\test.txt') try: for line_num, context in enumerate(file_object): print str(line_num) + ':' + context finally: file_object.clos

The Zen of Python, by Tim Peters  Beautiful is better than ugly. 美胜丑  Explicit is better than implicit. 明胜暗  Simple is better than complex. 简胜复  Complex is better than complicated. 复胜杂  Flat is