MATLAB解析和保存ini文件

1. 将ini文件转换成struct结构体

function data = ini2struct(filename)fid = fopen(filename, 'r');if fid == -1error('Unable to open file %s.', filename);enddata = struct();section = '';while ~feof(fid)line = fgetl(fid);line = strtrim(line);% 如果是注释行或者空行，则继续下一次循环if isempty(line) || line(1) == ';' || line(1) == '#'continue;end% 如果是节标题if line(1) == '[' && line(end) == ']'section = line(2:end-1);data.(section) = struct();continue;end% 解析键值对equalIndex = strfind(line, '=');if isempty(equalIndex)error('Invalid format in file %s.', filename);endkey = strtrim(line(1:equalIndex-1));value = strtrim(line(equalIndex+1:end));data.(section).(key) = value;endfclose(fid);
end

2. 将结构体保存为ini文件

function struct2ini(data, filename)fid = fopen(filename, 'w');if fid == -1error('Unable to open file %s.', filename);endfields = fieldnames(data);for i = 1:numel(fields)section = fields{i};keys = fieldnames(data.(section));fprintf(fid, '[%s]\n', section);for j = 1:numel(keys)key = keys{j};value = data.(section).(key);fprintf(fid, '%s=%s\n', key, value);endfprintf(fid, '\n');endfclose(fid);
end

3. 读取ini文件时的转换

INI文件中的值都被视为字符串，如果需要将值解析为其他类型（如浮点数或数组），需要在代码中进行转换：

data = ini2struct('test.ini');% 从结构体中获取对应的值
robotValue = data.Robot;
limitAValue = str2num(data.Limit.A); % 将字符串转换为数值
limitBValue = str2num(data.Limit.B); % 将字符串转换为数值% 打印结果
disp(['Robot: ' robotValue]);
disp(['Limit A: ' num2str(limitAValue)]);
disp(['Limit B: ' num2str(limitBValue)]);