王通 / gb32960_server · Files

package com.bsth.util;

/**
 * @author Hill
 */
public class CrcUtil {

    public static byte bbc(byte[] bytes, int start, int end) {
        if (start > end) {
            throw new IllegalArgumentException("无效的参数");
        }

        byte crc = 0;
        for (int i = start;i <= end;i++) {
            crc ^= bytes[i];
        }

        return crc;
    }
}