abstract：<?phpnamespace app\index\controller;use think\Db;use PDO;class Index{ //查询 public function index() { $res = Db::table('class')->field
<?php
namespace app\index\controller;
use think\Db;
use PDO;
class Index
{
//查询
public function index()
{
$res = Db::table('class')->field('r_id,r_name,r_fen')->where('p_id','=',2)->order('r_fen','desc')->limit(3)->select();
// ->where('r_fen','<',90)
var_dump($res);
}
//添加
public function insert()
{
$data = [
['r_name'=>'aaaa',
'r_city'=>'1111a',
'r_fen'=>'78',
'p_id'=>2],
['r_name'=>'aaaa',
'r_city'=>'1111a',
'r_fen'=>'78',
'p_id'=>2],
['r_name'=>'aaaa',
'r_city'=>'1111a',
'r_fen'=>'78',
'p_id'=>2]
];
dump($data);
$res = Db::table('class')->data($data)->insertAll();
// $id = Db::getLastInsID();
return "添加".$res;
}
//删除
public function dle()
{
$id = 14;
Db::table('class')->delete($id);
}
//修改
public function upl()
{
Db::table('class')->where('r_id',1)->data(['r_name'=>'杨俊杰','r_fen'=>100])->update();
}
}
Correcting teacher：西门大官人Correction time：2019-05-05 10:32:32
Teacher's summary：insert()和insertAll()方法的区别是什么？