python中成员操作符
>>> test1 ['aaa', 'bbb', 'ccc'] >>> "aaa" in test1 True >>> "ddd" in test1 False >>> "ccc" in test1 True >>> "ddd" not in test1 True >>> "aaa" not in test1 False
>>> test1 ['aaa', 'bbb', 'ccc'] >>> test1.insert(1,["fff","ggg"]) >>> test1 ['aaa', ['fff', 'ggg'], 'bbb', 'ccc'] >>> "aaa" in test1 True >>> "fff" in test1 False >>> "fff" not in test1 True