In the paper, the value of 0 in the table should be underlined. Because when making a table in a paper, if there are many zero values in the data, it is obviously chaotic. At this time, we can use horizontal lines instead of zero, so that the whole table is clearer and more beautiful. Thesis is a Chinese word, commonly used in classical literature, which means to talk or exchange ideas. Nowadays, papers are often used to refer to articles that conduct research in various academic fields and describe academic research results, which are referred to as papers for short.