//写备份文件
        private bool WriteFile(string[] dStr, string[] mStr, string[] bStr)
        {
            //判断文件夹是否存在
            DirectoryInfo dir = new DirectoryInfo(@"D:\\DataBaseBack");
            if(!dir.Exists)
                dir.Create();

            FileOperation fp = new FileOperation();
            //日报数据
            if (dStr != null)
            {
                if (!fp.WriteFile("D:\\DataBaseBack\\dStrMsg.dat", dStr))
                    return false;
            }
            //月报数据
            if (mStr != null)
            {
                if (!fp.WriteFile("D:\\DataBaseBack\\mStrMsg.dat", mStr))
                    return false;
            }
            //流水数据
            if (bStr != null)
            {
                if (!fp.WriteFile("D:\\DataBaseBack\\bStrMsg.dat", bStr))
                    return false;
            }

            return true;
        }
        //读备份文件 并且恢复 需要改进 对于有几十万条记录 分步执行
        private bool ReadFile(MySqlConnection con)
        {
            //判断文件夹是否存在
            DirectoryInfo dir = new DirectoryInfo(@"D:\\DataBaseBack");
            if (dir.Exists)
            {
                FileOperation fp = new FileOperation();

                //恢复日汇总表
                List<string> dList = new List<string>();
                //读入数据失败
                if(!fp.ReadFile("D:\\DataBaseBack\\dStrMsg.dat",ref dList))
                    return false;
                //恢复数据库失败
                if(!ReDataBase(dList, null, null, con))
                    return false;
                dList.Clear();

                //恢复月汇总表
                List<string> mList = new List<string>();
                if(!fp.ReadFile("D:\\DataBaseBack\\mStrMsg.dat",ref mList))
                    return false;

                if(!ReDataBase(null, mList, null, con))
                    return false;
                mList.Clear();
                
                //恢复流水
                List<string> bList = new List<string>();
                if(!fp.ReadFile("D:\\DataBaseBack\\bStrMsg.dat",ref bList))
                    return false;

                if(!ReDataBase(null, null, bList, con))
                    return false;
                bList.Clear();
            }
            return true;
        }