用以下方法解決就ok了

var setOuterHtml = function(s){
   var range = this.ownerDocument.createRange();
   range.setStartBefore(this);
   var fragment = range.createContextualFragment(s);
   //alert(fragment.xml);
   this.parentNode.replaceChild(fragment, this);
};

if(window.HTMLElement) {
  HTMLElement.prototype.__defineSetter__("outerHTML", setOuterHtml);
}