Dark Horse and Good Programmers take the lead in playing the slogan of "study first and then pay" in China. Since they dare to do so, it shows that they are full of confidence in their teaching. You are an excellent programmer. When I entered the school, I promised not to work in 7k and not to pay tuition. Like a dark horse, you don't have to pay tuition for admission, but 7k is a piece of cake for students who are excellent programmers, so it is only zero tuition, and you still have to pay tuition for employment. In the case of a dark horse, although this is guaranteed, there will still be a few people whose wages will not reach the level they guarantee, just like the students who graduated as programmers at present, but they have not paid their tuition fees.