After searching the literature, select the literature you are interested in, tick the box at the beginning of the literature, and then there should be a button similar to "export" or "save" at the top left of the list, click it, and then export it to CNKI-elearning format (you can choose to download CNKI-elearning here).

The specific operation can be Baidu, and it is estimated that there will be a very detailed tutorial. .