看到有好多star，而且好多开发者不是用Codeblocks环境的，于是决定更新一下Makefile，直接执行make指令就可以了
视频一键合并小工具
release页有exe文件下载！
使用方式：如果安装了ffmpeg（设置了环境变量），把文件拖拽到程序窗口中即可。
注意：使用的方法是无损合并，所以各视频片段必须是同种编码！
Seeing that there are a lot of stars, and a lot of developers are not using the Codeblocks environment, so I decided to add a Makefile, you can execute the make command directly.
1-key video concat with ffmpeg
There's exe file released!
How to use: If you have ffmpeg installed (Environment variable PATH), drag and drop files into the program's window.
Note: The method used is lossless merge(Direct stream copy), so each video clip must be the same encoding!