searchdemo/application/admin/controller/Company.php

<?php
namespace app\admin\controller;
use think\Controller;
use think\Db;
class Company extends Controller{

      public function index(){
          if(request()->isAjax ()){
              $lists=Db::name("company")->select();
              return json(['code'=>220,'msg'=>'','count'=>1,'data'=>$lists]);
          }
          return $this->fetch("index");
      }
      public function edit()
      {
          if(request()->isPost()){
              //die;
              $data=input("text");
              $add=Db:: name("company")->where("cid",1)->update(["text"=>$data]);
              if($add){
                  return json(["code" => 200,"msg" => "修改成功"]);
              }else{
                  return json(["code" => 100,"msg" => "修改失败"]);
              }
          }
          $id=input("id");
          $data=Db::name("company")->where("cid",$id)->find();
          //halt($data);
          return $this->fetch("edit",["data"=>$data]);
      }
}