定时任务落地到数据库中,删除和添加还不是你想怎么来就怎么来

def unpack(lst):
value_set = set()
new_lst = []
for i in lst:
for k, v in i.items():
if not value_set:
value_set.add(v)
new_lst.append(i)
if v in value_set:
continue
value_set.add(v)
new_lst.append(i)
return new_lst


ret = {}
for k, v in tmp.items():
ret[k] = unpack(v)