Given two strings of date, calculate how many days are there in between them.

Sample Input:

date1 = “2021-04-30”, date2 = “2016-11-30”

Sample Output:

1612

数据结构和算法：初级练习题 #50 – 日期间隔

给定两个日期字符串，计算它们之间相隔多少天。

输入样例：

date1 = “2021-04-30”, date2 = “2016-11-30”

输出样例：

1612

Python Solution