说明: create database if not exists tdt_jljh default character set utf8; 1、最简单的: CREATE TABLE t1( id int not null, name char(20) ); 2、带主键的: a: CREATE TABLE t1( id int not null primary key, name char(20) ); b:复合主键 CREATE TABLE t1( id int not null, name cha <qq_16950985> 上传 | 大小:465byte