dom节点和字符串之间的相互转化


//dom转字符串
function nodeToString ( node ) {
   var tmpNode = document.createElement( "div" );
   tmpNode.appendChild( node.cloneNode( true ) );
   var str = tmpNode.innerHTML;
   tmpNode = node = null; // prevent memory leaks in IE
   return str;
}

//字符串转dom
function parseDom(arg) { 
   var objE = document.createElement("div"); 
   objE.innerHTML = arg; 
   return objE.childNodes; 
}; 

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