创建应用
php think build admin
创建应用里面的model
php think make:model admin@test/t1
载入migration包，用来管理表结构
composer require topthink/think-migration
创建表管理操作类
php think migrate:create Salesman
执行表操作类运行表结构
php think migrate:run -v
创建一个数据表播种机（自动生成此表的数据）
php think seed:create Salesman
执行播种
php think seed:run