对全路径文件名进行分解，分解为驱动器、路径、文件名、扩展名-Analyse the file name of absolute path, and parse it to driver,path,file name and extension name

实现窗口分隔开显示两个组件，一键最大化窗口和复原-Window to achieve separation of the two components, a key to maximize the window and recovery