<script> var button =document.getElementById('button'); var navv =document.getElementById('navv'); button.onclick=function (){ if ( navv.style.display='none') { navv.style.display='block'; } else { navv.style.display='block' } } </script>
點擊顯示跟隱藏出錯，打斷檢查發(fā)現(xiàn)是else后面問題，但看不出原因?。?！
45_洋
2017-07-14 09:57:26
