public static Object[] File2intArr(String filepath){
//		RandomAccessFile raf = new

		FileInputStream fis = null;

		File f=new File(filepath);
		List<Integer> listint = new LinkedList<>();
		try {
			fis = new FileInputStream(filepath);
			int n = fis.read();
			int i=0;
			List<Integer> tmp = new LinkedList<>();
			while(n != -1){ //未到达流的末尾
				if( n != ','){
					n=n-'0';
					tmp.add(n);
				}else{//,
					listint.add(ByteUtil.byte2Int(tmp));
					tmp.clear();
				}
				i++;
				n = fis.read();
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

//		System.out.println(f.length());
//		int initlen = 0;
//		if(f.length()<INITLEN){
//			initlen = (int)f.length();
//		}
//		int res[] = new int[initlen];
		return listint.toArray();
	}