设计部联盟网站,想开一家网店,长春网站建设网诚传媒,做电子板报的网站CSV#xff0c;逗号分开的文件#xff0c;如果能快速的读取这些文件中的数据#xff0c;无疑会帮助我们解决很多问题。1、 只有数据的CSV文件#xff0c;CSV file that includes only numbers.As an example, create a text file, named as data.csv if you prefer, which …CSV逗号分开的文件如果能快速的读取这些文件中的数据无疑会帮助我们解决很多问题。1、 只有数据的CSV文件CSV file that includes only numbers.As an example, create a text file, named as data.csv if you prefer, which includes the following data with any editor you like.1, 2, 3, 45, 6, 7, 89, 0, 1, 21) Read all the data into a 3X4 matrix.Mat csvread(data.csv);disp(Mat);2) Read part of the data with specification of the start index. What is important is the data is accessed from index 0 in the direction of row and column.Mat csvread(data.csv, 1, 2);disp(Mat);Result showing below.7 81 23) Read only the specified range.Mat csvread(data.csv, 0, 1, [0,1,2,2]);disp(Mat);Note the starting index you specified in the second and third parameters is the same with the first two arguments in the fourth parameter matrix.2、 How to read a CSV file containing string data items.Create a file, named as datastr.csv if you like. Add the following data.1, 2, 3, Mine4, 5, 6, Yours7, 8, 9, HisOne who try to use csvread shall encounter frustration. :(I propose another solution to solve this case.fid fopen(datastr.csv);dcells textscan(fid, %f, %f, %f, %s);fclose(fid);dcellneeds dcells(1:3);Mat cell2mat(dcellneeds);disp(Mat);The result showing below.1 2 34 5 67 8 9Try it and good luck.
