Zhihu is a community of knowledge sharing and exchange. The reasons why college students use Zhihu are as follows:

1. Acquisition of professional knowledge: There are a large number of professionals and scholars in Zhihu, who have profound knowledge and rich experience in their own fields. College students can get the latest information and in-depth knowledge in professional fields by asking questions or browsing answers.

2. Improve autonomous learning ability: The question-and-answer form in Zhihu can help college students improve their autonomous learning and independent thinking ability. By asking questions and finding answers, they can learn how to solve problems independently and how to look at problems from different angles.

3. Broaden horizons: The topics in Zhihu cover all fields, and college students can learn knowledge and information in unfamiliar fields by browsing these topics, thus broadening their horizons.

4. Networking: Users on Zhihu come from all walks of life, and college students can get to know people in different fields by participating in discussions and establish their own networking.

5. Enhance employment competitiveness: There are many topics about job hunting, interview and career planning in Zhihu. By reading these topics, college students can understand the workplace rules in advance and enhance their employment competitiveness.

6. Recreation: Apart from professional knowledge and study-related content, there are many interesting topics and interesting people in Zhihu. College students can browse these contents in their spare time to relax themselves.

Generally speaking, Zhihu provides a platform for college students to acquire knowledge, improve themselves, broaden their horizons and establish contacts, which is an important auxiliary tool for their study and life.