#include #include #include #include #define ID struct id struct id { char name[20]; // xing ming int num; // xue hao int age; // nian ling char sex[2]; // xing bie char xi[20]; // xi bie char zhuan[20]; // zhuan ye char add[20]; // di zhi ID *next;
create table student( id int not null, name varchar(20) not null, sex char(1) not null) class student{ int id; String name; } String sql="select * from user"; create table teachers( id bigint identity(1,1) not null primary key, teachid int not null
