//往學生表中插入內容
insert into pm_stu values('1','張三');
insert into pm_stu values('2','李四');
insert into pm_stu values('3','王五');
insert into pm_stu values('4','趙六');
//往選課表中插入內容
insert into pm_ci values('1','1,2,3,4,');
insert into pm_ci values('2','1,4');
