jQuery怎么动态向页面添加代码？

var creatPrintList = function(data){
       var innerHtml = "";
       for(var i =0;i <data.length;i++){
    	   innerHtml +="<li class="contentLi">";
           innerHtml +="<a href=#  id='print"+data[i].kinoId+"' onclick = 'excelPrint(this)'>" + data[i].kinouNm + "</a>";
           innerHtml +="</li>"
       }
   	$("#contentUl").append(innerHtml);
   	$("a[id^='print']").hide();
	}