matlab提取文本文档的位置坐标,Matlab怎样从txt文件中提取点的坐标并构成矩阵?...

function Untitled = importfile(filename, startRow, endRow)

%IMPORTFILE Import numeric data from a text file as a matrix.

%   UNTITLED = IMPORTFILE(FILENAME) Reads data from text file FILENAME for

%   the default selection.

%

%   UNTITLED = IMPORTFILE(FILENAME, STARTROW, ENDROW) Reads data from rows

%   STARTROW through ENDROW of text file FILENAME.

%

% Example:

%   Untitled = importfile('新建文本文档 (2).txt', 3, 5);

%

%    See also TEXTSCAN.

% Auto-generated by MATLAB on 2018/05/26 21:59:35

%% Initialize variables.

delimiter = ' ';

if nargin<=2

startRow = 3;

endRow = 5;

end

%% Format for each line of text:

%   column2: double (%f)

%        column3: double (%f)

%   column4: double (%f