从另一个列表中删除一个列表中出现的所有元素

list1 = [1, 2, 3, 4, 5]
list2 = [3, 4, 5, 6, 7]

result = [x for x in list1 if x not in list2]
print(result)  # 输出 [1, 2]

list1 = [1, 2, 3, 4, 5]
list2 = [3, 4, 5, 6, 7]

result = list(set(list1) - set(list2))
print(result)  # 输出 [1, 2]