摘要： if exists(select * from sysobjects where name='tb_tree')drop table tb_treegocreate table tb_tree( id int primary key identity, name varchar(50), pId int, level int, sort int, cNum int)goinsert into tb_tree(name,pId,level,sort,cNum) values('节点1',0,1,0,6);insert into tb_tree(name,pId.. 阅读全文