2. Secondly, the collected literature is preliminarily screened, and only the high-quality literature related to the research topic is selected for review.
3. Then evaluate the selected literature, including whether it is authoritative, whether it uses scientific and rigorous research methods, and whether it is aimed at specific people or situations.
4. Finally, according to the selected literature, write a summary article, which is usually divided into introduction, literature summary, literature similarity and difference analysis, conclusion and future research direction.