Which educational institution is better in Harbin computer country, two countries or three countries?

It's better to be a polytechnic university, and stay away from it. In case you take me as a trust, I'll recommend another one for you. Beihang University is also famous.

I applied to Polytechnic University, but this September is the last time. In other words, after this exam in September this year, the future national second-level national third-level exam will be like Band Four.