my_list=['黑馬程序員','傳智播客','黑馬程序員','傳智播客','itheima','itcast','itheima','itcast','best']
my_set=set()
for element in my_list:
? ?my_set.add(element)
print(f"由列表：{my_list}存入集合后結(jié)果：{my_set}")