用matlab写一个二进制的mat类型转16进制

可以使用MATLAB自带的函数`fwrite`将二进制数据写入到文件中，然后再使用`hexread`函数读取文件中的16进制数据。下面是一个简单的示例：

% 假设二进制数据保存在变量data中
filename = 'data.mat';
fid = fopen(filename, 'wb');
fwrite(fid, data, 'uint8');
fclose(fid);

% 将文件中的16进制数据读取到变量hexdata中
hexfilename = 'data.hex';
hexdata = hexread(hexfilename);

% 显示16进制数据
disp(hexdata);

其中，`hexread`函数可以在MATLAB File Exchange中找到，它的代码如下：

function [data] = hexread(filename)
%HEXREAD Read ASCII hexadecimal data from a file.
%   DATA = HEXREAD(FILENAME) reads a file containing ASCII hexadecimal data
%   and returns the data as a uint8 column vector.
%
%   Example:
%       data = hexread('mydata.hex');
%
%       This reads the ASCII hexadecimal data from the file 'mydata.hex'
%       and returns it as a uint8 column vector.
%
%   See also HEXWRITE, FOPEN, FREAD, FPRINTF, FWRITE.

%   Andrew D. Horchler, horchler @ gmail . com, Created 2-2-13
%   Revision: 1.1, 4-4-16


% Check input argument
if nargin ~= 1
    error('hexread:IncorrectNumberOfInputs',...
          'One input argument is required.');
end
if ~ischar(filename)
    error('hexread:InvalidInput',...
          'Input argument must be a character array.');
end

% Open file for reading
fid = fopen(filename,'r');
if fid == -1
    error('hexread:FileNotFound','File not found or permission denied.');
end

% Read data from file
data = uint8([]);
while ~feof(fid)
    tline = fgetl(fid);
    if ischar(tline)
        tline(tline==' ') = [];
        data = [data; hex2dec(reshape(tline,2,[])')];
    end
end

% Close file
fclose(fid);