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js replaceChild

//父亲元素.replaceChild(新,旧)

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<ul id="city"> 2 <li id="bj">北京</li> 3 <li id="sh">上海</li> 4 <li id="gz">广州</li> 5 </ul> 6 7 <ul id="color"> 8 <li id="red">红色</li> 9 <li id="green">绿色</li> 10 <li id="blue">蓝色</li> 11 </ul> 12 <script type="text/javascript"> 13 var gzLiElement=document.getElementById("gz"); 14 gzLiElement.onclick=function(){ 15 var colorElement=document.getElementById("color"); 16 //父亲元素.replaceChild(新,旧) 17 document.getElementById("city").replaceChild(colorElement,this); 18 alert("xx"); 19 }