/
getext() - Get extension.
ret = getext( str )
2022/12/27
2022/12/23
2022/12/15
2022/11/14
2022/09/17
2022/09/02
2022/08/01
2022/05/17
2022/05/02
2022/04/19
2022/02/25
2022/01/13
2021/07/06
2021/05/26
2021/02/05
2020/09/04
/ 
/