1. time.time() #當(dāng)前時(shí)間戳, 沒(méi)參數(shù),唯一值
 2. time.sleep(secs) #暫停幾秒
 3. time.gmtime(secs)  #無(wú)參得到當(dāng)前格林尼治時(shí)間,有時(shí)間戳參數(shù)就轉(zhuǎn)為格林尼治結(jié)構(gòu)時(shí)間
 4. time.localtime(secs)  #無(wú)參得到local結(jié)構(gòu)化時(shí)間, 有時(shí)間戳參數(shù)就轉(zhuǎn)為local結(jié)構(gòu)化時(shí)間
           print(time.localtime())  # time.struct_time(tm_year=2022, tm_mon=10, tm_mday=20, tm_hour=11, tm_min=20, tm_sec=44, tm_wday=3, tm_yday=293, tm_isdst=0)
           print(time.localtime(13912345678))  # time.struct_time(tm_year=2410, tm_mon=11, tm_mday=12, tm_hour=20, tm_min=27, tm_sec=58, tm_wday=4, tm_yday=316, tm_isdst=0)
 5. time.strftime(format, t) #將結(jié)構(gòu)化時(shí)間轉(zhuǎn)化為自定義的格式化時(shí)間 
           print(time.strftime('%Y-%m-%d %H:%M:%S', time.localtime()))  #北京時(shí)間
           print(time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()+60*60)))  #東京時(shí)間
 6. time.strptime(string, format) # 將自定義時(shí)間(字符串)轉(zhuǎn)化為結(jié)構(gòu)時(shí)間
           print(time.strptime("2023-1-11 1:2:3", "%Y-%m-%d %H:%M:%S")) # 將日常格式化時(shí)間轉(zhuǎn)為結(jié)構(gòu)化時(shí)間
           print(time.strptime("2023-1-11", "%Y-%m-%d")) # 將日常格式化時(shí)間轉(zhuǎn)為結(jié)構(gòu)化時(shí)間
 7. time.ctime(secs)  # 將一個(gè)時(shí)間戳轉(zhuǎn)變?yōu)橐粋€(gè)結(jié)構(gòu)化時(shí)間
           print(time.ctime(123))  # Thu Jan  1 08:02:03 1970
           print(time.ctime(time.time() + 60 * 60))  # Thu Oct 20 11:28:32 2023
 8. time.mktime(t) # 將所給結(jié)構(gòu)化時(shí)間轉(zhuǎn)化為時(shí)間戳
           print(time.mktime(time.localtime(time.time())))  # 1666233100.0
           print(time.time())  # 1666233100.5075898  # 兩行的效果是一樣的
           # 求一個(gè)指定時(shí)間的時(shí)間戳
           print(time.mktime(time.strptime('2023-2-3', '%Y-%m-%d'))) # 1580659200.0 

time_now = datatime.datetime.now()  #實(shí)例化

datetime.year
datetime.month
datetime.day
datetime.hour
datetime.minute
datetime.second
datetime.microsecond
datetime.tzinfo()：時(shí)區(qū)
datetime.date()：返回date對(duì)象
datetime.time()：返回time對(duì)象
datetime.replace(name=value)
datetime.timetuple()：返回time.struct_time 對(duì)象
datetime.strftime(format)：按照f(shuō)ormat進(jìn)行格式化輸出
#除了實(shí)例本身具有的方法,類(lèi)本身也提供了很多好用的方法：

datetime.strptime(date_string,format)： 給定時(shí)間格式解析字符串
datetime.now([tz])：當(dāng)前時(shí)間默認(rèn) localtime
datetime.today()：當(dāng)前時(shí)間

import time
import datetime

dt = datetime.datetime.now()

print(dt.timestamp())
print(dt.year)
print(dt.month)
print(dt.day)
print(dt.hour)
print(dt.minute)
print(dt.second)
print(dt.microsecond)
print(dt.tzinfo)
print(dt.time())
print(dt.date())
print(dt.strftime("%Y-%m-%d %H:%M:%S"))  # 2023-1-31 13:42:16
print(datetime.datetime.strptime('2023-1-20 1:1:1', "%Y-%m-%d %H:%M:%S"))

delta = datetime.timedelta(11)

print(dt + delta)
print((dt + delta).strftime("%Y-%m-%d %H:%M:%S"))
print((dt - delta).strftime("%Y-%m-%d %H:%M:%S"))

print('....')
print(datetime.datetime.now()) #返回 2023-1-20 13:40:29.151057
print(datetime.date.fromtimestamp(time.time()) )  # 時(shí)間戳直接轉(zhuǎn)成日期格式 2023-1-20
print(datetime.datetime.now())
print(datetime.datetime.now() + datetime.timedelta(3)) #當(dāng)前時(shí)間+3天
print(datetime.datetime.now() + datetime.timedelta(-3)) #當(dāng)前時(shí)間-3天
print(datetime.datetime.now() + datetime.timedelta(hours=3)) #當(dāng)前時(shí)間+3小時(shí)
print(datetime.datetime.now() + datetime.timedelta(minutes=30)) #當(dāng)前時(shí)間+30分

print(datetime.date.fromtimestamp(time.time()))  # 2023-1-20