Config files 配置文件

[cup113]

在设置的内容越来越丰富后，我们应当加入配置文件以更好地储存多种多样的配置（包括：基础设置、导出时设置等等），并配套地加入导入导出功能，文件名扩展名为.rhc。我们还可以将.rhp和.rhc结合起来，形成配置-进度组合文件.rhpc。这样一来，背诵助手可以更好地满足长期背诵的需求。
As the items of setting is increasing rapidly, we can add config files in order to store all kinds of configs. They include basic setting, exporting setting, etc. At the same time, we should add the function of importing and exporting, and name the file extension .rhc (Recite Helper Config). We can also combine .rhp and .rhc files into .rhpc files (Recite Helper Process & Config). As thus, this project will satisfy the needs of long-term reciting.