1. Self-taught examination: I participated in the self-taught examination through my own efforts during my work and obtained a bachelor's/master's degree.

2. On-the-job study: During the working period, I obtained my master's degree through unit training or participating in on-the-job postgraduate courses at my own expense.

3. Correspondence education: I obtained my undergraduate degree through correspondence education during my work.

4. Full-time study: Enter full-time undergraduate/master graduate students through the college entrance examination and obtain corresponding academic qualifications.