$("#dianji").click(function(){$.ajax({type:"post",url:"***.html",data:{repairitemid:$("#s_city").val(),buildingid:$("#admin_floor").val()},beforeSend:function(){$("#aaa").append("<img src='../image/5-121204194036.gif' style='width:20px;height:20px;'/>");},success:function(result){if(result==""||result==null){$("#ddd").html("");$("#ddd").html("<span id='admin_sup_a'>沒有人員</span>");}else{$("#ddd").html("");$("#ddd").html(result);}//alert(result);},complete:function(){$("#aaa").remove();},error:function(err){alert("網絡異常");}});});如何讓beforeSend每次點擊都加載，如何設置