循环读取n天的日期

import datetime

current_time = datetime.datetime.now()
for n in range(0,300):#300可以替换成你想要的日期段，比如从现在起10天前就替换成10
    delta = datetime.timedelta(days=-int(n))
    n_date = (current_time+delta).strftime('%Y-%m-%d')
    print(n_date)