清单理解：
>>> l = ['1', '32', '523', '336']>>> [ x for x in l if "2" not in x ]['1', '336']>>> [ x for x in l if "2" in x ]['32', '523']
清单理解：
>>> l = ['1', '32', '523', '336']>>> [ x for x in l if "2" not in x ]['1', '336']>>> [ x for x in l if "2" in x ]['32', '523']
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