从控制器中调用Ruquest类的四种方法：
* 1.传统的new Request
* 2.静态代理：think\facade\Request
* 3.依赖注入：Request $request
* 4.父类Controller中的属性$request :$this->request
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2018/1/21 0021
* Time: 23:42
*/
namespace app\index\controller;
use think\Request;
use think\Controller;
class Tast extends Controller
{
//方法一：传统的new Request方法
public function test1()
{
$request = new Request();
dump($request->get());
}
}<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2018/1/21 0021
* Time: 23:42
*/
namespace app\index\controller;
use think\facade\Request;//导入请求对象的静态代理
class Tast
{
public function test2()
{
//用静态代理：think\facade\Request
dump( Request::get());
}
}<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2018/1/21 0021
* Time: 23:42
*/
namespace app\index\controller;
use think\Request;
class Tast
{
//用依赖注入
public function test3(Request $request)
{
dump($request->get());
}
}<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2018/1/21 0021
* Time: 23:42
*/
namespace app\index\controller;
use think\Controller;//导入think命名空间的Controller类
use think\Request;//导入think命名空间的Request类
class Tast extends Controller
{
//直接调用父类Controller中的属性：$request : $this->request
public function test4()
{
dump($this->request->get());
}
}运行效果图：
