Python 数组 去掉arr2中 arr2与arr1重复的元素

# 去掉arr2中 arr2与arr1重复的元素
arr1 = ['a','b','c']
arr2 = ['a','e','f']

for item in arr2:
    if item in arr1:
        arr2.remove(item)    

print(arr2)# 结果：['e','f']