var time1;var srcollOld = 0,srcollNow = 0,scrollFun = false;$(window).scroll(function () {   //$(window).scrollTop()这个方法是当前滚动条滚动的距离   //$(window).height()获取当前窗体的高度   //$(document).height()获取当前文档的高度    var bot = 50;  //bot是底部距离的高度    if ((bot  +  $(window).scrollTop() )  >=  ($(document).height() - $(window).height())) {          srcollNow = $(window).scrollTop();          if(srcollNow >= srcollOld){              if(!scrollFun){              //第一次请求完成后才发第二次请求                  scrollFun = true;                  clearTimeout(time1);                  time1=window.setTimeout(function(){                      loadAjax()                  },500);              }          }          srcollOld = srcollNow;      }});function loadAjax(){    $.ajax({        url: url,        type: type,        success:function (data) {            scrollFun = false;            if (data.success == true) {            }else{            }        },        error: function(XMLHttpRequest, textStatus, errorThrown) {            scrollFun = false;        }    });}

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　　　　　　　　　　　　　　　　var pageNum = 5;		　　　　　　 var listHeight = $(".house-list").height();				var scrollFun = false;				var time1;				//获取购买数据				function getBuyData(releaseType, pageSize) {					$.ajax({						url: apis + "wap/house/page/filter?releaseType=" + releaseType + "&pageSize=" + pageSize,						type: "GET",						dataType: "json",						success: function(data) {							scrollFun = false;							console.log(data);							if(data.code == "000000") {								var buyData = data.data								console.log(buyData)								var html = "";								for(var i of buyData) {									console.log(i)									html += `
																		
       
							
        
								
         
${"$"+countSum(i.price)}
							
        
							
        
								
         
									
          
455sqft
									
          
4bd 
									
          
4ba
								
         
								
         ${i.street}							
        
						
       
											
`;								}								$(".house-list").html(html);							}						},						error: function(data) {							scrollFun = false;						}					}).then(function() {						//获取滚动条到顶部的垂直高度 (即网页被卷上去的高度)  						$(window).scroll(function() {						var scrollHeight = ($(".house-list").children().length - 4) * $(".house-list li").height() - $(".search-box").height()							console.log($(document).scrollTop() >= scrollHeight);							if($(document).scrollTop() >= scrollHeight) {								if(!scrollFun) {									//第一次请求完成后才发第二次请求									scrollFun = true;									clearTimeout(time1);									time1 = window.setTimeout(function() {										console.log(6565665)										pageNum += 5										console.log(pageNum)										getBuyData(2, pageNum);									}, 500);								}							}						});					})				}　　　　　　　　　　　　　　　　getBuyData(2, pageNum);