作业提交系统，学生上传作业，教师网上批改，学生可以从网上查询成绩-Job submission system

作业网上提交和批改系统，学生可以登录该系统提交作业，教师可以查看学生的作业并进行批改！-Online job submission and marking system, students can log into the system to submit assignments, teachers can view student work and the mark!