a = [1,3,4,6,7]
b = [1,2,3,4,5,6,7,8,9]
print([i for i in b if i not in a])
[2, 5, 8, 9]
去除b中不属于a元素
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转载自blog.csdn.net/weixin_42785547/article/details/86361114
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