还是直接实例化这些对象就行？
$config = array( 'maxSize' = 3145728, 'savePath' = './Public/Uploads/', 'saveName' = array('uniqid',''), 'exts' = array('jpg', 'gif', 'png', 'jpeg'), 'autoSub' = true, 'subName' = array('date','Ymd'),);$ftpConfig = array( 'host' => '192.168.1.200', //服务器 'port' => 21, //端口 'timeout' => 90, //超时时间 'username' => 'ftp_user', //用户名 'password' => 'ftp_pwd', //密码 );$upload = new \Think\Upload($config,'Ftp',$ftpConfig);// 实例化上传类