read number from file name leaving special characters

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Oindri
Oindri 2018-3-14
评论： KSSV 2018-3-14
data_3dsar_pass1_az001_HH.mat
This is the filename. I need to read in the serial number at the end of the string. I have 360 such files starting from 001 to 360. how do i do it.

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KSSV
KSSV 2018-3-14
编辑：KSSV 2018-3-14
matfiles = dir('*.mat') ; % you are in the folder of mat files
N = length(matfiles) ; % total number of files
% loop for each file
for i = 1:N
thisfile = matfiles(i).name
% do what you want
end
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