What is the biggest difference among junior programmers, intermediate programmers and senior programmers?

There are also great differences among programmers, and the biggest difference between them is mainly in this respect. Let me share it with you.

Ability. Some programmers have just entered a unit and haven't learned much. Their ability gap is much worse than that of the old employees.

Experience. Some programmers have improved their abilities, but they still can't solve some intractable diseases because of their short stay and lack of experience.

Salary and treatment. Because of different abilities, the rewards are different. Generally, senior programmers have high salaries. After all, they can solve many difficult and complicated problems.

Of course, apart from these aspects, there are still some gaps, such as hair, thinking and length of service.