<script type="text/javascript">window.onload = function () {var oUl = document.getElementById('ul');var aLi = document.getElementsByTagName('li');aLi.onclick = function () {alert(1)}}</script></head><body><ul id="ul"><li>1</li><li>2</li></ul></body></html>
為什么點擊li不能彈alert
知白守黑3944358
2016-09-27 22:24:14
