摘要：insert into city values (1,1,'北京') insert into city values (2,2,'济南') insert into city values (3,2,'青岛') insert into city values (4,2,'烟台') insert into city values (5,3,'大连') insert into city values (6,3,'沈阳') insert into city values (7,4,'南京') insert into city values (8,5,'石家庄') 阅读全文

摘要：登陆页面的代码 阅读全文