python学习-46 时间模块

时间模块

····时间戳

print(time.time())

运行结果：

 1564294158.0389376

 Process finished with exit code 0

·····结构化时间

print(time.localtime())         # 当地时间
y = time.localtime()
print(y.tm_year)
print(y.tm_wday)

print(time.gmtime())        # 世界标准化时间 UTC

运行结果：

time.struct_time(tm_year=2019, tm_mon=7, tm_mday=28, tm_hour=14, tm_min=25, tm_sec=57, tm_wday=6, tm_yday=209, tm_isdst=0)
2019
6
time.struct_time(tm_year=2019, tm_mon=7, tm_mday=28, tm_hour=6, tm_min=25, tm_sec=57, tm_wday=6, tm_yday=209, tm_isdst=0)

Process finished with exit code 0

·····结构化时间转换成时间戳

print(time.mktime(time.localtime()))

``````结构化时间转换成字符串时间

print(time.strftime('%Y-%m-%d %X'，time.localtime()))

运行结果：

2019-07-28 14:34:58

Process finished with exit code 0

``````字符串时间转换成结构化时间

print(time.strptime('2018:1:1:12:00:00','%Y:%m:%d:%X'))

运行结果：

time.struct_time(tm_year=2018, tm_mon=1, tm_mday=1, tm_hour=12, tm_min=0, tm_sec=0, tm_wday=0, tm_yday=1, tm_isdst=-1)

Process finished with exit code 0

······把结构化时间转换成固定的字符串表达形式

print(time.asctime())
print(time.ctime())

运行结果：

Sun Jul 28 14:43:45 2019
Sun Jul 28 14:43:45 2019

Process finished with exit code 0

····推迟运行

print(time.sleep(1))

ps：

import datetime模块

print(datetime.datetime.now())