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30 Box = document.getElementById('div'); var p = document.createElement('p'); Box.parentNode.insertBefore(p,Box); //insert after var Box = document.getElementById('div'); var p = document.createElement('p'); var parent = Box.parentNode; if(parent.lastChild === Box){ parent.appendChild(p); }else{ parent.insertBefore(p,Box.nextSibling); } //replace node var Box = document.getElementById('div'); var p = document.createElement('p'); Box.parentNode.replaceChild(p,Box); var Box = document.getElementById('div'); var clone = Box.cloneNode(true);//true loop Box.parentNode.appendChild(clone); node.normalize();//合并文本节点 node.childNodes[0].splitText(3)//截取新节点
