Remember the frequently forgotten problem of continuously reading pictures -%04d

num2str(1,’%04d’), Here you can convert all the pictures into four digit names , Easy to read .
In addition, if you want to change the length, put 4 Just change it , We need to pay attention to 0 Don't leave out .
In fact, this is a problem of alignment , Take a closer look when you are free , I feel that this little skill is still very useful in my work , At least no more classification for Read it , Good earth