恒润科技 HiRain Technologies HIRAIN TECHNOLOGIES 示例:低级文本文件O 将数据写入文本文件: >> fid fopen('square mat. txt, 'wt') >>fprintf(fid, 18sn', This is a square matrix); > rinf(王id,'暑i\t号i\t号\n’,[123;456;789]"); >>Ec1。se(Eid); ASC文本文件: square mat. txt This is a square matrix 1 369 fid=fopen('square mat. txt''rt)i 从文本文件读取数据: >> title fgetl(fid) [ data, count]=fscanf( f立1 e10 ex data reshape(data, 3, 3) data transpose data' > help fprintf fclose(fid) www.hirain.com12 示例：低级文本文件 I/O This is a square matrix 1 2 3 4 5 6 7 8 9 ASCII 文本文件：square_mat.txt >> fid=fopen('square_mat.txt', 'rt'); >> title = fgetl(fid); >> [data,count]=fscanf(fid, '%i'); >> data = reshape(data, 3, 3); >> data_transpose = data'; >> fclose(fid); >> fileio_ex >> help fprintf 从文本文件读取数据: >> fid = fopen('square_mat.txt', 'wt'); >> fprintf(fid, '%s\n', 'This is a square matrix'); >> fprintf(fid, '%i\t%i\t%i\n', [1 2 3; 4 5 6; 7 8 9]'); >> fclose(fid); 将数据写入文本文件：