You can see what kind of adult education you are suitable for and what kind of adult education you want to learn. Most platforms in JD.COM are based on online education. In addition to online education, adult academic education such as self-taught examination and adult college entrance examination all belong to formal academic qualifications recognized by the state. Online education itself is online learning, as long as the school is still carrying out online education, you can apply. However, there are many reforms in online education, which require offline field exams. If it is not very convenient, it may be more troublesome at that time. Network platforms generally do not charge fees. You can check it yourself in official website of each university, or you can register at the registration point of the learning center directly under the university.