python 计算时间差 字符串

 1 #coding:utf8
 2 import datetime
 3 def time_differ(date1=‘12:55:05‘,date2=‘13:15:05‘):
 4     ‘‘‘
 5     @传入是时间格式如‘12:55:05‘
 6     ‘‘‘
 7     date1=datetime.datetime.strptime(date1,"%H:%M:%S")
 8     date2=datetime.datetime.strptime(date2,"%H:%M:%S")
 9     if date1 < date2:        
10         return date2-date1
11     else:
12         return date1-date2
13 
14 date1 = ‘13:05:05‘
15 date2 = ‘13:15:05‘
16 differ = time_differ(date1,date2)
17 
18 print differ