Question

java编程：编写一个程序，用来删除指定目录里的全部空文件夹

Answer 1

private static boolean doDelete(File dir){
File[]subs=dir.listFiles();
for(File sub:subs){
if(sub.isDirectory())deleteDir(sub);
else
sub.delete();
}
return dir.delete();
}

直接调用就好了。