改写这句话：该模块的主要功能是课堂相关信息的管理，能够新建/删除多门课程，并将课程与任课教师、选修了该课程的学生信息建立联系，增强相关信息管理的灵活性，支持多教师、多课程、多课堂签到

This module's primary function is to manage classroom-related information. It has the ability to create/delete multiple courses and establish connections between courses, teachers, and students who have taken them, enhancing the flexibility of information management. It also supports multiple teachers, courses, and classroom check-ins.