Python中时间元组与时间日期的使用及说明

import time

# <class 'time.struct_time'>
localtime = time.localtime()
# time.struct_time(tm_year=2019, tm_mon=11, tm_mday=3, tm_hour=9, tm_min=8, tm_sec=21, tm_wday=0, tm_yday=307, tm_isdst=0)
print(type(localtime))
print(localtime)

for attr in localtime:
    print(attr)

import time

# 格林威治天文时间元组
print(time.gmtime())
print(time.gmtime(1577851199))

# 本地时间元组
print(time.localtime())
print(time.localtime(1577851199))

# 格式化时间
# time.asctime([tupletime])
print(time.asctime())

# time.ctime([secs])
print(time.ctime())

# 格式化成2020-01-01 11:59:59形式
print(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()))

# 将格式字符串转换为时间戳
a = "2020-01-01 11:59:59"
str2TT = time.strptime(a, "%Y-%m-%d %H:%M:%S")

# 时间元组到时间戳
ts = time.mktime(str2TT)
print(ts)

# 时间戳
print(time.time())
# 休眠秒
time.sleep(1)

import datetime
import time

today = datetime.date.today()
print(today)
print(type(today))

# 星期几，isoweekday星期天是第一天，weekday星期一是第一天
print(today.isoweekday())
print(today.weekday())
# 时间元组
print(today.timetuple())
# 第几天
print(today.toordinal())
datetime.date.fromordinal(today.toordinal())

print(datetime.date(2020, 1, 1))
datetime.date.fromtimestamp(time.time())

print(datetime.time(12, 59, 59, 999))

# 现在本地日期
print(datetime.datetime.now())
# 现在utc日期
print(datetime.datetime.utcnow())
print(datetime.datetime(2020, 1, 31, 12, 59, 59, 0))

# 字符串到日期
print(datetime.datetime.strptime('2020-1-1 12:01', '%Y-%m-%d %H:%M'))
# 日期格式化
print(datetime.datetime.now().strftime('%Y-%m-%d %H:%M'))

# 字符串得到日期
datetime.datetime.strptime('2020-1-1 12:01', '%Y-%m-%d %H:%M')
# 日期格式化
datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')

import datetime
import time

today = datetime.date.today()
# 上个月最后一天
lastMonthLastDay = datetime.date(today.year, today.month, 1) - datetime.timedelta(1)
print(lastMonthLastDay)
# 上个月第一天
lastMonthFirstDay = datetime.date(lastMonthLastDay.year, lastMonthLastDay.month, 1)
print(lastMonthFirstDay)

# 一周之前
print(today - datetime.timedelta(7))

# 本周一
thisMonday = today - datetime.timedelta(today.isoweekday()-1)
print(thisMonday)
# 本周星期天
lastMonday = thisMonday - datetime.timedelta(7)
print(lastMonday)

# 上周星期天
lastSunday = today - datetime.timedelta(days=today.isoweekday())
print(lastSunday)
# 上周星期一
lastMonday = lastSunday - datetime.timedelta(days=6)
print(lastMonday)

# 8小时后
print(datetime.datetime.now() + datetime.timedelta(hours=8))

start = datetime.datetime.now()
time.sleep(1)
end = datetime.datetime.now()
diff = end - start
# <class 'datetime.timedelta'>
print(type(diff))
print(diff)

import calendar
# 是否是闰年
print(calendar.isleap(2020))