用户选择一个文件或多个文件，可以拷贝，也可以剪切，然后用户可以在任意路径下借助windows的粘贴功能粘贴我么选择的文件。-user may choose one file or more than one file in any directory,and then user can copy or cut the file or files choosed by user.At last,user may paste this file or these files with windows　paste in any directory.