Can you show my example? I find function sendkeys() but i don't find example uses for two input, and i don't find enter key code

To enter input into any input field, focus the input field by ->click()ing it, and then send keys.

Also, I assume that you can switch input fields by using the \t tab key.

I try but not work, it still doesn't detect and the button is blocked, in addition as I display the content after filling it is empty

        $mech->click({xpath => '//input[@name="username"]', single => 
+1 });
        $mech->sendkeys( string => $user );
        $mech->click({xpath => '//input[@name="password"]', single => 
+1 });
        $mech->sendkeys( string => $pass );

        $mech->sleep(1);

        $mech->click({intrapage => 1, text => 'Log In', single => 1 })
+;
        $mech->sleep(2);

        print $mech->content;
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