注册
试卷生成
+ ts_paper_created()
+ register()- record(time)
试卷
+ test_id:int + test_content:string-test_subject:string
+ ts_submit()+ts_grading()+ts_look()-record(time)
教师
+ teacher_id:int + sex:string+name:string-tel:string-subject:string+license_id:char[]=0
试卷提交
+ ts_submit(paper)- record(time)
试卷集
+ tests_id:int +tests_content:string-tests_subject:string
+look()-record(time)
登录
学生
+ student_id:int + sex:string+name:string-tel:string-class:string+license_id:char[]=0
password
+ student_id:int + log_in_time:data
注销
+log off()- record(time)
普通学生
+ student_id:int + name：strtng
+ st_search():
+ st_submit(paper)- record(time)
生成试卷
+ teacher_id:int + log_in_time:data
考试记录
+ record_id:int+tests_id:int +tests_type:string+record_students:char[]-tests_subject:string-record_time:date#text_actor:string
+tr_add()+tr_look()+tr_record_created()- tr_delete()
查看试卷
判卷
+ ts_grading(paper)- record(time)
试题
+ test_id:int + test_content:string+test_type:string+test_answer-test_subject:string-test_time:date#text_actor:string
提交试卷
+ ts_look(paper)- record(time)
account
操作记录
+ recordj_id:int+test_id:int +record_people:char[]+record_optype-test_subject:string-record_time:date
+op_add()+op_look()+op_record_created()- op_delete()
需参加考试的学生
+ student_id:int + name：string
+ st_submit()+st_ search()
