python 时间

1.字符串格式的时间转时间戳

import time
a = "2022-04-19 08:51:31"
#先转换成时间数组
time_array = time.strptime(a,'%Y-%m-%d %H:%M:%S')
print(time_array)
#时间数组转时间戳
time_stamp =int(time.mktime(time.strptime(a,'%Y-%m-%d %H:%M:%S')))
print(time_stamp)

　　结果：

　　time.struct_time(tm_year=2022, tm_mon=4, tm_mday=19, tm_hour=8, tm_min=51, tm_sec=31, tm_wday=1, tm_yday=109, tm_isdst=-1)

　　1650329491

2.字符串时间戳转时间

import time
time_stamp = 1650329491
#转时间数组
time_array = time.localtime(time_stamp)
print(time_array)
#转时间
time_time = time.strftime("%Y-%m-%d %H:%M:%S", time_array)
print(time_time)

　　结果：

　　time.struct_time(tm_year=2022, tm_mon=4, tm_mday=19, tm_hour=8, tm_min=51, tm_sec=31, tm_wday=1, tm_yday=109, tm_isdst=0)

　　2022-04-19 08:51:31

3.常用的时间练习

import time
class Time():
def now_time(self):
return time.strftime('%H:%M:%S', time.localtime(time.time()))
def now_date(self):
return time.strftime('%Y-%m-%d', time.localtime(time.time()))
def now_date_time(self):
return time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
def now_time_stamp_10(self):
return int(time.time())
def now_time_stamp_13(self):
return int(time.time()*1000)
if __name__ == '__main__':
ss=Time()
print(ss.now_time())
print(ss.now_date())
print(ss.now_date_time())
print(ss.now_time_stamp_10())
print(ss.now_time_stamp_13())

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