%% write data in bin format   
        fid=fopen('testbin.bin','wb');
        data=rand(1,1000)>0.5;
    if(fid>0)
        count=fwrite(fid,data,'int8');
        if(count==size(data,1)*size(data,2))
            state=1;
        else
            state=-1;
        end
    end
    fclose(fid);
%% read data in bin format    
    fid2=fopen('testbin.bin','rb');
    M=1000;N=1;
    if(fid2>0)
        [data3,count]=fread(fid2,[M,N],'int8');
        if(count==size(data3,1)*size(data3,2))
            state=1;
        else
            state=-1;
        end
    end
    fclose(fid2);

% 测试正常