上传文件时，显示Class 'think\facade\Filesystem' not found

代码如下

public function checkLogin()
{

$data = Request::param();
$image = Request::file();
// $savename = \think\facade\Filesystem::putFile( 'topic', $file);
$savename = \think\facade\Filesystem::disk('public')->putFile( 'topic', $image);
$bisData = [
'username' => $data['username'],
'password' => $data['password'],
'image' => $image['image'],
];

8c72043902d5213b7c64ec12ed898cd.png ( 15.23 KB 下载：22 次 )