在matlab中为多个读取的xml文件创建DOM对象的数组 [英] create arrays of DOM object in matlab for multiple read xml files

问题描述

我有很多XML文件，并按如下方式获取其文件名:

I have many XML files, and get their filenames like so:

[FileName,PathName] = uigetfile('*.xml','MultiSelect','on');

我想使用以下代码读取这些文件:

I want to read these files using this code:

for i=1:length(fullfile(FileName)) 
    xtree(i) = xmlread(char(fullfile(FileName(i))));

但是我得到一个错误.单个XML文件效果很好:

but I got an error. It works well for a single XML file:

xtree = xmlread(char(fullfile(FileName)));

推荐答案

您没有正确使用单元格数组.你知道他们是什么吗?在Matlab中键入help cell可以了解更多信息.

You're not using cell arrays properly. Do you know what they are? Type help cell in Matlab to find out more.

基本上，这里发生的是uigetfile输出名为FileName的文件名的单元格数组.您可以通过大括号索引({})访问每个文件名.

Basically, what's going on here is that uigetfile outputs a cell-array of filenames called FileName. You access each filename by curcly-brace indexing ({}).

类似地，每个节点都是一个特殊的对象，普通的Marlab数组无法正确捕获.最好也将xtree定义为单元数组，并再次使用花括号将xmlread的输出分配.

Similarly, each node is a special object that cannot be captured properly by a normal Marlab array. You're better off defining xtree as a cell-array as well, and assign the output of xmlread again with curly braces.

也:在运行时读取用户输入的文件时，总是更好地广泛检查错误.

Also: when reading files input by the user at runtime, it is always better to extensively check for errors.

总结:

[FileName,PathName] = uigetfile('*.m','MultiSelect','on');

if isequal(FileName,0) || isequal(PathName,0)
    error('Cancel pressed.');

else
    xtree = cell(size(FileName));
    for i=1:numel(FileName)
        try
            xtree{i} = xmlread(fullfile([PathName FileName{i}]));

        catch ME
            %# handle error
        end
    end

end

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