python应用：日期时间

计算时间差时，注意天数差引发的问题，获取天数差为

(date2-date1).days

此处，需谨记date2>date1，以保证结果的正确性

具体应用如下：

 1 # -*-coding:utf8-*-
 2 # 计算时间差
 3 import time
 4 import datetime
 5 def time_interval():
 6     # 获取当前时间
 7     #time_old = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
 8     time_old = '2018-1-1 23:40:01'
 9     print time_old
10     #time_now = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
11     time_now = '2018-1-2 00:10:01'
12     print time_now
13     old_time = time.strptime(time_old,'%Y-%m-%d %H:%M:%S')
14     now_time = time.strptime(time_now,'%Y-%m-%d %H:%M:%S')
15     #print old_time
16     date1 = datetime.datetime(old_time[0], old_time[1], old_time[2], old_time[3], old_time[4], old_time[5])
17     date2 = datetime.datetime(now_time[0], now_time[1], now_time[2], now_time[3], now_time[4], now_time[5])
18     return (date2-date1).seconds
19 
20 print time_interval()

注意：strftime()与strptime()的不同

转载于:https://www.cnblogs.com/jpapplication/p/10290531.html