05.DOM 查询练习 节点练习

尾部附上整体代码! 1, //1.查找#bj节点 document.getElementById('btn01').onclick = function () { var biObj = document.getElementById(bj) alert(biObj[removed]) } 结果: 2, //2.查找所有li节点 var btn02Ele = document.getElementById(btn02); btn02Ele.onclick = function(){ var lis = document.getElemen