1，最近发现，python的datetime可以直接运用比较运算符进行大小比较
首先定义一组9月份日期数组
from datetime import datetime targets = [ # 9/1到9/30的日期数据数组 datetime.datetime(2020, 9, 1, 0, 0), datetime.datetime(2020, 9, 2, 0, 0), datetime.datetime(2020, 9, 3, 0, 0), datetime.datetime(2020, 9, 4, 0, 0), datetime.datetime(2020, 9, 5, 0, 0), # （中间省略） datetime.datetime(2020, 9, 25, 0, 0), datetime.datetime(2020, 9, 26, 0, 0), datetime.datetime(2020, 9, 27, 0, 0), datetime.datetime(2020, 9, 28, 0, 0), datetime.datetime(2020, 9, 29, 0, 0), datetime.datetime(2020, 9, 30, 0, 0) ]
然后定义想要打印的日期范围
from_dt = datetime(2020, 9, 10) to_dt = datetime(2020, 9, 20)
然后以开始日 <= 判断datetime对象 <= 结束日的形式运用比较运算符
for target in targets:
if from_dt <= target <= to_dt: # 小于等于9/20，大于等于9/10
print target
# 結果:
# 2020-09-10 00:00:00
# 2020-09-11 00:00:00
# 2020-09-12 00:00:00
# 2020-09-13 00:00:00
# 2020-09-14 00:00:00
# 2020-09-15 00:00:00
# 2020-09-16 00:00:00
# 2020-09-17 00:00:00
# 2020-09-18 00:00:00
# 2020-09-19 00:00:00
# 2020-09-20 00:00:00
原文：https://www.cnblogs.com/weijiefg/p/13651199.html