隐藏ul出问题function onClickul(target) {var ul document.getElementById(target).getElementsByTagNa
隐藏ul出问题
function onClickul(target) { var ul = document.getElementById(target).getElementsByTagName('ul'); for (var i = 0; i < ul.length; i++) { if (ul[i].style.diplay != "none") { ul[i].style.diplay = "none"; } else { ul[i].style.diplay = ""; } } }