分别去除列表中int和str类型的重复元素。代码片段如下：
from collections import OrderedDict
list_num = [2, 3, 1, 2, 1]
list_str = ["qwer", "df", "qwer", "df"]
# 去除int类型列表中重复的元素
newlist1 = list(set(list_num))
print(newlist1)
# 去除str类型列表中重复的元素
newlist2 = list(OrderedDict.fromkeys(list_str).keys())
print(newlist2)
