Physics needs experimental foundation, and now it needs software operation ~ this science is theoretical physics, and now it is applied physics. I feel that the really useful subjects are basic subjects, such as mathematical and physical methods. Although other theoretical contents are not often used, it is still beneficial to learn physics and understand something comprehensive ~ it is obviously not enough to use fortran only in software. Although c++ is basic, it is very simple to operate. There are also teachers in the university to guide you. Then there is the drawing software, matlab and origin are enough, matlab also has the function of programming, recommended ~