对于您的代码，您是忙碌等待的，您可以执行以下操作：

func(X) ->
    receive % This checks the whole mailbox for 'die'
        die -> dead; 
    after 0 -> % No 'die' message in mailbox, process the next Message whenever it arrives
        receive % This checks only the next Message in the mailbox
            die -> dead;
            Message -> func(do_something(X, Message))
        end
    end.