Click "I want to have a class". Then choose the subject, textbook version, which class and which class. Go to the class page and fill it out step by step. The first step is to write the teaching design, the second step is to upload resources, upload courseware and other resources, and the third step is to submit the preview (a control needs to be installed in the process of uploading resources, and it may take several operations). After the upload is successful, wait for the review. After the review is passed, the class is successful.