数组去重

Posted 2020-12-20 gary1221

list1 = [
    ["三国演义", "西游记", "红楼梦"],
    ["三国演义", "西游记", "红楼梦"],
    ["三国演义", "西游记", "水浒传"],
    ["三国演义", "西游记", "水浒传"],
    ["三国演义", "西游记", "论语"],
    [1, 2, 3],
    [1, 2, 3],
    [5, 6, 8]
]
# 单纯的对列表进行去重，采用set()就能解决。但是用set()给数组去重则会出现问题。
# 方法一，无序，列表推导
list2 = [list(i) for i in set(tuple(j) for j in list1)]
print(list2)

# 方法二，如果需求是去重后按照顺序展示，采用for循环
list3 = list()
for i in list1:
    if i not in list3:
        list3.append(i)
print(list3)