使用方法：
在keil的Options of Target -> User -> After Build/Rebuild下输入
PathTo\hex-date.exe $H@L.hex
===============================================
hex-date.exe filename.hex
->copy filename.hex filename20241025-A.hex
(A=>'A'+hour)
in keil's
[User] [After Build/Rebuild] [Run #1].
[pathto\hex-date.exe $H@L.hex]
