var exeFlag = 0;//控制执行业务次数标记$('#list1').bind('DOMNodeInserted', function () { if(!/img/.test($("td[aria-describedby$='icon']").html())){ if(exeFlag == 0){ console.log("业务处理");//只执行一次 exeFlag = 1; } }else{ exeFlag = 0; }});