模块

Posted 2020-11-27 quanag

time模块

时间模块里面有时间戳、格式化时间对象、时间字符串

import time
# 时间戳

print(time.time())               # 1587642175.403718

?# 格式化时间对象

print(time.gmtime())             # 格林尼治时间对象
print(time.localtime())          # 本地时间对象

显示结果：
time.struct_time(tm_year=2020, tm_mon=4, tm_mday=23, tm_hour=11, tm_min=45, tm_sec=52, tm_wday=3, tm_yday=114, tm_isdst=0)
time.struct_time(tm_year=2020, tm_mon=4, tm_mday=23, tm_hour=19, tm_min=45, tm_sec=52, tm_wday=3, tm_yday=114, tm_isdst=0)

# 时间字符串：

print(time.strftime(‘Year:%Y Month:%m Day:%d %H:%M:%S‘))            # Year:2020 Month:04 Day:23 19:49:52
print(time.strftime(‘%Y-%m-%d %H:%M:%S‘))            # 2020-04-23 19:51:01

时间戳、格式化时间对象、时间字符串之间的转换

# 时间戳 ------> 格式化时间对象   gmtime  localtime
print(time.localtime(time.time()))
# time.struct_time(tm_year=2020, tm_mon=4, tm_mday=23, tm_hour=19, tm_min=52, tm_sec=38, tm_wday=3, tm_yday=114, tm_isdst=0)

# 格式化时间对象  ------------>  时间戳       mktime
print(time.mktime(time.localtime()))              # 1587643045.0

# 格式化时间对象 ------------ >  时间字符串     strftime
print(time.strftime(‘%Y-%m-%d %H:%M:%S‘,time.localtime()))          # 2020-04-23 19:59:33

# 时间字符串   --------------->  格式化时间对象   strptime
print(time.strptime(‘2020-10-20 18:20:20‘,"%Y-%m-%d %H:%M:%S"))
# time.struct_time(tm_year=2020, tm_mon=10, tm_mday=20, tm_hour=18, tm_min=20, tm_sec=20, tm_wday=1, tm_yday=294, tm_isdst=-1)

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