How to compare the differences between array elements in Python

The following editor will bring you a Python method to compare the similarities and differences of the elements of two arrays. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor and take a look.

Get the intersection/union/difference of two arrays through set():

print set(a).intersection(set(b)) # 交集
print set(a).union(set(b)) # 并集
print set(a).difference(set(b)) # 差集，在a中但不在b中的元素
print set(b).difference(set(a)) # 差集，在b中但不在a中的元素

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