Of course it works. Academic qualifications, diplomas and ordinary students belonging to distance education can be found on the student information website of the Ministry of Education. Distance education is about taking credits for 2.5 -5 years. Generally, I do my homework on the Internet, and I take the final exam twice a year, with a total of four courses and about five courses each time. If you don't go to Southwest Jiaotong University, you should be in the nearest learning center, and every final exam is also in the school center. In fact, the gold content of graduation certificate is not much different from correspondence, amateur and self-taught examination. Of course, it is not comparable to the full-time undergraduate diploma admitted by the general college entrance examination. In addition, if you are an undergraduate, you can also take the annual (twice a year in some provinces) adult degree foreign language examination organized by the provincial degree office. Generally, you can get a degree certificate if you pass the exam and graduate. However, online schools charge more than correspondence courses. Of course, if you want to learn knowledge, online college is still a good choice. You have your own study space, you can communicate with teachers online, and you can also watch CDs of teachers' lectures. Of course, it doesn't matter if you want to mix the amateur learning forms mentioned in the diploma just now. All are national education and academic qualifications recognized by the state.