function str=func_string2(PathName,img_name, i, houzhui,CanShuName, BianHao)

str=cell(7,1);
%str{7}參數報告存在和圖像一致的路徑下；
%str{5}參數報告存在當前路徑下；
%str{6}是文件名；
%str{4}是帶完整路徑的文件名；

%利用到的4幀圖像文件名存在str{1}～str{4}中，根據幀序號的大小決定前面加幾個0；
if BianHao==4
    for m=4:-1:1
        if i-(m-1) < 10
            str_temp = strcat(PathName, '\', img_name, '_', '000', num2str(i-(m-1)), houzhui);
        elseif i-(m-1) <100
            str_temp = strcat(PathName, '\', img_name, '_', '00', num2str(i-(m-1)), houzhui);
        elseif i-(m-1) <1000
            str_temp = strcat(PathName, '\', img_name, '_', '0', num2str(i-(m-1)), houzhui);
        else
            str_temp = strcat(PathName, '\', img_name, '_', num2str(i-(m-1)), houzhui);
        end
        str{5-m} = str_temp;
    end
    str{7}=strrep(str{4},houzhui,CanShuName);

    if i < 10
        str_temp = strcat(img_name, '_', '000', num2str(i));
    elseif i <100
        str_temp = strcat(img_name, '_', '00', num2str(i));
    elseif i <1000
        str_temp = strcat(img_name, '_', '0', num2str(i));
    else
        str_temp = strcat( img_name, '_', num2str(i));
    end
    str{6} = str_temp;
    str{5} = strcat(str{6},CanShuName);
else
    for m=4:-1:1
        if i-(m-1) < 10
            str_temp = strcat(PathName, '\', img_name, '_', '0000', num2str(i-(m-1)), houzhui);
        elseif i-(m-1) <100
            str_temp = strcat(PathName, '\', img_name, '_', '000', num2str(i-(m-1)), houzhui);
        elseif i-(m-1) <1000
            str_temp = strcat(PathName, '\', img_name, '_', '00', num2str(i-(m-1)), houzhui);
        elseif i-(m-1) <10000
            str_temp = strcat(PathName, '\', img_name, '_', '0', num2str(i-(m-1)), houzhui);
        else
            str_temp = strcat(PathName, '\', img_name, '_', num2str(i-(m-1)), houzhui);
        end
        str{5-m} = str_temp;
    end
    str{7}=strrep(str{4},houzhui,CanShuName);

    if i < 10
        str_temp = strcat(img_name, '_', '0000', num2str(i));
    elseif i <100
        str_temp = strcat(img_name, '_', '000', num2str(i));
    elseif i <1000
        str_temp = strcat(img_name, '_', '00', num2str(i));
    elseif i <10000
        str_temp = strcat(img_name, '_', '0', num2str(i));
    else
        str_temp = strcat( img_name, '_', num2str(i));
    end
    str{6} = str_temp;
    str{5} = strcat(str{6},CanShuName);
end