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使用代码：
<?php
namespace app\pc\controller;
use think\Db;
class Index extends Common
{
public function index()
{
$db_customer = 'customer';
$where['uid'] = '1';
$field = 'uid,name';
$order = 'uid desc';
$limit = 10;
$insert_data = ['name' => 'userName', 'pwd' => '123456'];
$select = $this->select($db_customer, $field, $where, $order, $limit);//查询多条
$find = $this->find($db_customer, $field);//查询单条
$insert = $this->insert($db_customer, $insert_data);//添加
$delete = $this->delete($db_customer, $where);
}
}在controller文件夹内建立一个Common.php文件便于继承使用<?php
/**
* @author: 周洪亮
* @copyright: 2017/7/2015:23
*/
namespace app\pc\controller;
use think\Config;
use think\Controller;
use think\Db;
use think\View;
class Common extends Controller
{
protected $view;
// 架构方法注入
public function _initialize()
{
$this->view = View::instance([], Config::get('view_replace_str'));
}
/**
* @author:周洪亮<white_zhl@163.com>;
* @copyright:2017/8/15;
* @var:查询
*/
public function select($db, $field = '', $where = '', $order = '', $limit = 5)
{
$data = Db::name($db)->field($field)->where($where)- >order($order)->limit($limit)->select();
return $data;
}
/**
* @author:周洪亮<white_zhl@163.com>;
* @copyright:2017/8/15;
* @var:添加数据
*/
public function insert($db, $data)
{
Db::name($db)->insert($data);
$data = Db::name($db)->insertGetId($data);
return $data;
}
/**
* @author:周洪亮<white_zhl@163.com>;
* @copyright:2017/8/15;
* @var:查询单条数据
*/
public function find($db, $field = '')
{
$data = Db::name($db)->field($field)->find();
return $data;
}
public function delete($db, $where)
{
$data = Db::name($db)->where($where)->delete();
return $data;
}
}更多实例请访问我的个人博客：zhouhongliang.cn 