获取本周，上周，本月，上月，本季的时间

获取本周，上周，本月，上月，本季的时间

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import datetime

from datetime ``import timedelta

now ``= datetime.datetime.now() 

# 今天

today ``= now

print``(``'--- today = {}'``.``format``(today))

# 昨天

yesterday ``= now ``- timedelta(days``=``1``)

print``(``'--- yesterday = {}'``.``format``(yesterday))

# 明天

tomorrow ``= now ``+ timedelta(days``=``1``)

print``(``'--- tomorrow = {}'``.``format``(tomorrow))

# 当前季度

now_quarter ``= now.month ``/ 3 if now.month ``% 3 =``= 0 else now.month ``/ 3 + 1

print``(``'--- now_quarter = {}'``.``format``(now_quarter))

# 本周第一天和最后一天

this_week_start ``= now ``- timedelta(days``=``now.weekday())

this_week_end ``= now ``+ timedelta(days``=``6 - now.weekday())

print``(``'--- this_week_start = {} this_week_end = {}'``.``format``(this_week_start, this_week_end))

# 上周第一天和最后一天

last_week_start ``= now ``- timedelta(days``=``now.weekday() ``+ 7``)

last_week_end ``= now ``- timedelta(days``=``now.weekday() ``+ 1``)

print``(``'--- last_week_start = {} last_week_end = {}'``.``format``(last_week_start, last_week_end))

# 本月第一天和最后一天

this_month_start ``= datetime.datetime(now.year, now.month, ``1``)

this_month_end ``= datetime.datetime(now.year, now.month ``+ 1``, ``1``) ``- timedelta(days``=``1``)``+ datetime.timedelta(

hours``=``23``, minutes``=``59``, seconds``=``59``)

print``(``'--- this_month_start = {} this_month_end = {}'``.``format``(this_month_start, this_month_end))

# 上月第一天和最后一天

last_month_end ``= this_month_start ``- timedelta(days``=``1``)``+ datetime.timedelta(

hours``=``23``, minutes``=``59``, seconds``=``59``)

last_month_start ``= datetime.datetime(last_month_end.year, last_month_end.month, ``1``)

print``(``'--- last_month_end = {} last_month_start = {}'``.``format``(last_month_end, last_month_start))

# 本季第一天和最后一天

month ``= (now.month ``- 1``) ``- (now.month ``- 1``) ``% 3 + 1

this_quarter_start ``= datetime.datetime(now.year, month, ``1``)

this_quarter_end ``= datetime.datetime(now.year, month ``+ 3``, ``1``) ``- timedelta(days``=``1``)``+ datetime.timedelta(

hours``=``23``, minutes``=``59``, seconds``=``59``)

print``(``'--- this_quarter_start = {} this_quarter_end = {}'``.``format``(this_quarter_start, this_quarter_end))

# 上季第一天和最后一天

last_quarter_end ``= this_quarter_start ``- timedelta(days``=``1``)``+ datetime.timedelta(

hours``=``23``, minutes``=``59``, seconds``=``59``)

last_quarter_start ``= datetime.datetime(last_quarter_end.year, last_quarter_end.month ``- 2``, ``1``)

print``(``'--- last_quarter_start = {} last_quarter_end = {}'``.``format``(last_quarter_start, last_quarter_end))

# 本年第一天和最后一天

this_year_start ``= datetime.datetime(now.year, ``1``, ``1``)

this_year_end ``= datetime.datetime(now.year ``+ 1``, ``1``, ``1``) ``- timedelta(days``=``1``)``+ datetime.timedelta(

hours``=``23``, minutes``=``59``, seconds``=``59``)

print``(``'--- this_year_start = {} this_year_end = {}'``.``format``(this_year_start, this_year_end))

# 去年第一天和最后一天

last_year_end ``= this_year_start ``- timedelta(days``=``1``)``+ datetime.timedelta(

hours``=``23``, minutes``=``59``, seconds``=``59``)

last_year_start ``= datetime.datetime(last_year_end.year, ``1``, ``1``)

print``(``'--- last_year_start = {} last_year_end = {}'``.``format``(last_year_start, last_year_end))

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