1、实现model使用效果 

 2、自动加载model,KJ.php

   //自动加载文件
    public static function _autoload($className){

        switch ($className){
            //自动model类
            case substr($className,-5)=='Model':
                $path= MODEL.'/'.$className.'.php';
                if(is_file($path))  include $path;
                break;
            //自动加载控制器
            case substr($className,-3)=='Crl':
                $path= CONTROLLER.'/'.$className.'.php';
                if(is_file($path))  include $path;
                break;
            //自动加载基类
            case substr($className,-4)=='Base':
                $path= KJ_CORE.'/base/'.$className.'.php';
                if(is_file($path))  include $path;
                break;
            default :
                break;
        }
    }

3、model可定义table,ModelBase.php

  public function __construct($table=null){
        if($table){
            $this->table=$table;
        }
        if(!$this->table){
            die("no table" );
        }
        $this->_connect();
        $this->_opt();
    }

4、创建model文件，testModel.php

<?php

class testModel extends  ModelBase{
    public $table='test';

    public  function findId($id)
    {
       return   $this->where('id='.$id)->find();
    }

}

5、调用model，indexCrl.php

<?php
class indexCrl{
    public function index(){
        $model=new testModel();
        $data=$model->select();
        var_dump($data);


        $data2=$model->findId(1);
        var_dump($data2);

    }
}