public static void do1(String[] args) throws IOException{
		String uri = "hdfs://"+RunOver.masterhost+"/user/";
		Configuration conf = new Configuration();
		FileSystem fs  = FileSystem.get(URI.create(uri),conf);
		
		
		double size = 0L;int num = 0;
		FileStatus[] fileStatus = fs.listStatus(new Path(uri+RunOver.usr+"/"));
		for(FileStatus fstatus : fileStatus){
			if(!fstatus.isDir() || !fstatus.getPath().getName().contains("result_bkpb"))
				continue;
			else{
				FileStatus[] innerFiles = fs.listStatus(fstatus.getPath());
				for(FileStatus innerFile : innerFiles){
					if(innerFile.isDir())
						continue;
					else{
						size += innerFile.getLen();
						num++;
					}
				}
			}
			
		}
		
		System.out.println(num+"个文件");
		System.out.println("共"+size/(1024*1024)+"MB");
	}