Abstract is a short article that concisely and accurately expresses the important content of the paper. Usually, it does not include the introduction, methods, results and discussion of the paper, mainly for the convenience of readers to quickly understand the main contents and important information of the paper. Abstract of a paper is usually attached to the beginning or end of the paper, and the number of words is generally less than 300 words.

Before reading the full text, briefly introduce the content, purpose and conclusion of the article, so that readers can better understand the full text. It usually includes a brief introduction of research background, research purpose, research methods, research results and conclusions, as well as an overview of the structure and content of the article. Generally, at the beginning or end of an article, the number of words is generally less than 200 words.

Although both the abstract and the abstract are brief introductions to the content of the article, their emphases and functions are slightly different. The abstract of the paper pays more attention to the concise expression of important content, so that readers can quickly understand the core content of the paper; The abstract of the paper pays more attention to the summary of the structure and content of the article, so that readers can better understand the full text.