获取12个月内每个月(直到该月)的数据

from datetime import datetime
from dateutil.relativedelta import relativedelta

# 获取当前日期
now = datetime.now()

# 初始化一个空列表来存储每个月的第一个月
months = []

# 循环12次，获取每个月的数据
for i in range(1, 13):
    # 计算当前月份
    current_month = now - relativedelta(months=i)
    first_day_of_month = current_month.replace(day=1)
    months.append(first_day_of_month)

# 打印结果
for month in months:
    print(month.strftime("%Y-%m"))