js – (ajax loading加载)

$.ajax({
   type:"get",
   url: Url,
   dataType:"jsonp",
   async: true,
   beforeSend:function(XMLHttpRequest){ 
   　　$(".app_infro_con").html("<img src='./images/loading.gif'/>");
   }, 
   success:function(res){
   　　var infro = res.data.notice
   　　$(".app_infro_con").html(infro);
   }
})