python输入年月日，得出已经过了多少天？

# -*- coding: UTF-8 -*-
import time
def What_day_of_the_year(inputTime):

#函数，判断字符串是否为数字
def is_number(s):
try:
float(s)
return True
except ValueError:
pass

try:
import unicodedata
unicodedata.numeric(s)
return True
except (TypeError, ValueError):
pass

return False

#判断字符串是否含有“-”分割符（是否按格式输入）
if inputTime.find(\'-\') != -1:
#if \'\' in inputTime != \'False\' or \' \' in inputTime != \'False\': #想判断是否含空格（含空格不符合格式）,效果不佳，已废弃;改用Python异常处理
timeList = inputTime.split(\'-\') #以“-”符分割字符串，赋值为列表

#通过for循环+自定义的is_number函数判断列表是否含有字母（含有字母不符合格式）
trueList = []
for numberValue in timeList:
trueList.append(is_number(numberValue))
if trueList.count(\'False\') == 0:

timeList = list(map(int, timeList)) #将列表从字符串转换为int整数
if timeList[0] % 4 == 0 or timeList[0] % 400 == 0: #判断是否为闰年。
timeTotal = (7 * 31) + (4 * 30) + 29

exceptSameMonthDay = 0
for monthValue in range(1,timeList[1]): #计算除当月在内的，已过天数；如：2009-11-14，不算第11月。仅算1～10月
if monthValue == 1 or monthValue == 3 or monthValue == 5 or monthValue == 7 or monthValue == 8 or monthValue == 10 or monthValue == 12:
exceptSameMonthDay += 31
elif monthValue == 4 or monthValue == 6 or monthValue == 9 or monthValue == 11:
exceptSameMonthDay += 30
elif monthValue == 2:
exceptSameMonthDay += 29
return exceptSameMonthDay + timeList[2]
else:
timeTotal = (7 * 31) + (4 * 30) + 28

exceptSameMonthDay = 0
for monthValue in range(1,timeList[1]):
if monthValue == 1 or monthValue == 3 or monthValue == 5 or monthValue == 7 or monthValue == 8 or monthValue == 10 or monthValue == 12:
exceptSameMonthDay += 31
elif monthValue == 4 or monthValue == 6 or monthValue == 9 or monthValue == 11:
exceptSameMonthDay += 30
elif monthValue == 2:
exceptSameMonthDay += 28
return exceptSameMonthDay + timeList[2]
else:
return 1
#else:
#return 1
else:
return 1
timeValue = time.strftime(\"%Y-%m-%d\", time.localtime()) #获取当前日期，并格式化
# 格式化成2020-02-26形式

tipsValue = \'请输入日期，如:\' + timeValue + \':\'
inputTime = input(tipsValue)
try:
inputTime = What_day_of_the_year(inputTime)
if inputTime == 1:
print(\'您的输入有误!\')
else:
print(inputTime)
except :
print(\'您的输入有误!\')

来源：https://www.cnblogs.com/Deng-Xian-Sheng/p/14452878.html
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