python判断一个集合是否包含了另外一个集合中所有项的方法
本文实例讲述了python判断一个集合是否包含了另外一个集合中所有项的方法。分享给大家供大家参考。具体如下：
>>> L1 = [1, 2, 3, 3] >>> L2 = [1, 2, 3, 4] >>> set(L1).difference(L2) set([ ]) >>> set(L2).difference(L1) set([4])
希望本文所述对大家的Python程序设计有所帮助。
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