Matlab文本处理：提取指定内容

clc;clear;

fileno=1;

for i=1:fileno

    fid2=fopen('4B1T_wb_eq.txt','w'); %save data to 'logfile' in Matlab current working directory

    fid=fopen('4B1T_wb_eq.log','r'); %read NAMD log file fid=fopen([loadpath groupdir(i).name],'r');

    while(~feof(fid))

        newl=fgetl(fid);

        if ~isempty(strfind(newl,'ENERGY:'))

              fprintf(fid2,'%s\n',newl);   % 提取的是字符串

%             if (~isempty(strfind(newl(13:15),' 30')))

%                 fprintf(fid2,'%s\n',newl(16:48));

%             end

        end

    end

    fclose(fid);

end

fclose(fid2);