How to catch exceptions in try catch of TP3.2

Java code

public function t(){
        try {
            throw new \Exception("haha");
        }catch (Exception $e){
            dump($e);
        }
         
    }

The above catch cannot be captured, and an ERROR page will appear. Because catch (Exception $e){ captures the Exception class of the current module, not Exception, so it needs to be changed to

Java code

public function t(){
        try {
           E("errr");
        }catch (\Exception $e){
            dump($e);
        }
    }