本文实例讲述了Python实现计算两个时间之间相差天数的方法。分享给大家供大家参考，具体如下：
#-*- encoding:UTF-8 -*-
from datetime import date
import time
nowtime = date.today()
def convertstringtodate(stringtime):
"把字符串类型转换为date类型"
if stringtime[0:2] == "20":
year=stringtime[0:4]
month=stringtime[4:6]
day=stringtime[6:8]
begintime=date(int(year),int(month),int(day))
return begintime
else :
year="20"+stringtime[0:2]
month=stringtime[2:4]
day=stringtime[4:6]
begintime=date(int(year),int(month),int(day))
return begintime
def comparetime(nowtime,stringtime):
"比较两个时间,并返回两个日期之间相差的天数"
if isinstance(nowtime,date):
pass
else:
nowtime=convertstringtodate(nowtime)
if isinstance(stringtime,date):
pass
else:
stringtime=convertstringtodate(stringtime)
result=nowtime-stringtime
return result.days
"""
if stringtime[0:2] == "20":
year=stringtime[0:4]
month=stringtime[4:6]
day=stringtime[6:8]
begintime=date(int(year),int(month),int(day))
endtime=nowtime
result=endtime-begintime
return result.days
else :
year="20"+stringtime[0:2]
month=stringtime[2:4]
day=stringtime[4:6]
begintime=date(int(year),int(month),int(day))
endtime=nowtime
result=endtime-begintime
return result.days
"""
print isinstance("1012",date)
print comparetime(nowtime,"140619")
PS：这里再为大家推荐几款关于日期与天数计算的在线工具供大家使用：
希望本文所述对大家Python程序设计有所帮助。
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