遍历文件夹所有文件，按需要修改文件时间属性，时间可以设置，程序调试通过，添加了纠错等功能，很健壮，适合初学者学习。-Traverse Folder file need to modify the properties of the file time, the time can be set, program debugging through, add the error correction function, very robust, suitable for beginners to l