insert into score values ('S002','C001',80.9);
insert into score values ('S003','C001',81.9);
insert into score values ('S004','C001',60.9);
insert into score values ('S001','C002',82.9);
insert into score values ('S002','C002',72.9);
insert into score values ('S001','C003','59');
commit;
-----------------------------------------------
--初始化工作完成