地址栏上的跑马灯

javascript:(function(){location.hash='javascript%20javascript';setInterval(function(){var%20hash=location.hash.substr(1);var%20new_hash=hash.charAt(hash.length-1)+hash.substr(0,hash.length-1);location.hash%20=%20new_hash;},100);})();

把它贴粘到地址栏上的！