tp上传文件的增删改查

路由

Route::group('admin',function (){
//    文件上传
    Route::post('upload','@admin/up/upload')->name('admin/up/upload');
    //删除文件
    Route::delete('del','@admin/up/del')->name('admin/up/del');
});

ajax请求
其中取得的img路径格式为 /uploads/20200417/41a1a39b052089b31be3d3e0925784a1.png

   // 点击删除
    $('#del').click(function() {
      let img = $(this).prev().attr('src');
//发送ajax
    $.ajax({
    url:'{:url("admin/up/del")}',
    type:'delete',
    data:{img},
    success:ret => {
        if (ret.status == 0){
            alert(ret.msg);
            $('#avatar').hide();
        }
    }
    })
    })

控制器删除
DIR得到当前工作路径，dirname是取父路径
DIR=E:\www\class\web\article\application\admin\controller
img= /uploads/20200417/41a1a39b052089b31be3d3e0925784a1.png

 //删除文件
    public function del(Request $request){
        $img = dirname(dirname(dirname(__DIR__))).'/public'.$request->delete('img');
        $data = ['status'=>1,'msg'=>'删除失败'];
        if (unlink($img)){
            $data = ['status'=>0,'msg'=>'删除成功'];
        }
        return json($data);
    }