程序运行后，分别提示输入源文件和目标文件路径名，然后进行磁盘文件的复制。复制完成后显示“文件复制完成”信息。若复制失败，则能给出“源文件不存在” 、“目标路径不存在” 、“目标文件已存在”等信息。-After the program runs, respectively, prompted, enter the source file and target file path name, and then copy the file to disk. Upon completion of copy " File copy complete"　information. If replication fails, it can give the " source file does not exist,"　" target path does not exist" , " destination file already exists"　and other information.