关于数组：是否有用于Python 3.x的array_diff(php)方法模拟


Is there array_diff (php) method analogue for Python 3.x

本问题已经有最佳答案，请猛点这里访问。

例如：

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>> a = list(["red","blue","red"]);
>> b = list(["yellow","red"]);

结果：_阵列。

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>> list("blue")

或最好的方式吗？

相关讨论

将它们转换为集合并执行集合减法

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>>> a = ["red","blue","red"]
>>> b = ["yellow","red"]
>>> set(a) - set(b)
{'blue'}
>>> a
['red', 'blue', 'red'] # the lists are still the same