老师帮忙看下,有时加载不出来,有时刷新只能加载出来第一个
来源:5-4 自由编程
技术为王2383098363
2019-08-31 14:00:07
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Document</title> <link rel="stylesheet" href="css/base.css"> <link rel="stylesheet" href="css/index.css"> </head> <body> <div class="other_content"> <div class="container"> <img src="img/loading.gif" alt=""> </div> </div> <div class="foot_nav"> <div class="container clear"> <img src="img/loading.gif" alt=""> <!-- <div class="nav_content"> <p class="a=nav_title">消费者保障</p> <a href="javascript:;">保障范围</a> <a href="javascript:;">退换货流程</a> <a href="javascript:;">服务中心</a> <a href="javascript:;">更多特色服务</a> </div> <div class="nav_content"> <p class="a=nav_title">新手上路</p> <a href="javascript:;">新手专区</a> <a href="javascript:;">消费警示</a> <a href="javascript:;">交易安全</a> <a href="javascript:;">24小时在线帮助</a> <a href="javascript:;">免费开店</a> </div> <div class="nav_content"> <p class="a=nav_title">付款方式</p> <a href="javascript:;">快捷支付</a> <a href="javascript:;">信用卡</a> <a href="javascript:;">余额包</a> <a href="javascript:;">蜂蜜花啊</a> <a href="javascript:;">货到付款</a> </div> <div class="nav_content"> <p class="a=nav_title">慕淘特色</p> <a href="javascript:;">手机慕淘</a> <a href="javascript:;">慕淘信</a> <a href="javascript:;">大众评审</a> <a href="javascript:;">B格指南</a> </div> --> </div> </div> <div class="foot"> <div class="container"> <img src="img/loading.gif" alt=""> <!-- <div class="tags"> <a href="javascript:;">关于慕淘</a> <a href="javascript:;">合作伙伴</a> <a href="javascript:;">营销中心</a> <a href="javascript:;">廉正举报</a> <a href="javascript:;">联系客服</a> <a href="javascript:;">开放平台</a> <a href="javascript:;">诚征英才</a> <a href="javascript:;">联系我们</a> <a href="javascript:;">网站地图</a> <a href="javascript:;">法律声明</a> <a href="javascript:;">知识产权</a> </div> <div class="copyright">©2017 imooc.com All Rights Reserved</div> --> </div> </div> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script type="text/javascript" src="js/index.js"></script> </body> </html>
/*通用*/
*{
padding: 0;
margin: 0;
}
a{
text-decoration: none;
}
.container{
width: 1200px;
margin:0 auto;
}
/*页面其他内容*/
.other_content .container{
height: 800px;
}
.other_content .container img,.foot_nav .container img,.foot .container img{
display: block;
margin:0 auto;
top: 370px;
position: relative;
}
.foot .container img{
top: -6px;
}
.foot_nav .container img{
top: 0px;
}
/*页面底部导航区*/
.foot_nav .container{
border-top: 1px solid #D8DDE1;
}
.nav_content{
padding: 30px 0px 30px 22px;
width: 278px;
height:78px;
float: left;
}
.nav_content p{
font-size: 16px;
line-height: 30px;
color: #05111C;
}
.nav_content a{
font-size: 12px;
line-height: 24px;
color: #9299A0;
margin-right:22px;
display: inline-block;
float: left;
}
.nav_content a:hover{
color: #F01513;
}
.clear::after{
display: block;
content: '';
clear: both;
}
/*页脚*/
.foot{
background: #F3F5F7;
}
.foot .container{
height: 102px;
}
.foot .container .tags,.copyright{
top: 27px;
text-align: center;
position: relative;
}
.foot .container .tags a,.copyright{
font-size: 12px;
line-height: 24px;
color: #777D82;
margin-right:16px;
}
.foot .container .tags a:hover{
color: #000;
}
var bottomData=[
{
'title':'消费者保障',
'items':['保障范围','退换货流程','服务中心','更多特色服务']
},{
'title':'新手上路',
'items':['新手专区','消费警示','交易安全','24小时在线帮助','免费开店']
},{
'title':'付款方式',
'items':['快捷支付','信用卡','余额包','蜂蜜花啊','货到付款']
},{
'title':'慕淘特色',
'items':['手机慕淘','慕淘信','大众评审','B格指南']
}
]
var footData={
'link':['关于慕淘','合作伙伴','营销中心','廉正举报','联系客服','开放平台','诚征英才','联系我们','网站地图','法律声明','知识产权'],
'copyright':'©2017 imooc.com All Rights Reserved'
}
function footHtml(){
var html='<div class="tags">';
for (var i = 0; i < footData['link'].length; i++) {
html+='<a href="javascript:;">'+footData['link'][i]+'</a>';
}
html+='</div><div class="copyright">'+footData['copyright']+'</div>'
return html;
}
function footNavHtml(){
var html='';
for (var i = 0; i < bottomData.length; i++) {
html+='<div class="nav_content"><p class="a=nav_title">'+bottomData[i]['title']+'</p>';
for (var j = 0; j < bottomData[i]['items'].length; j++) {
html+='<a href="javascript:;">'+bottomData[i]['items'][j]+'</a>'
}
html+='</div>'
}
return html;
}
function isVisible($elem){
return ($(window).height()+$(window).scrollTop()>$elem.offset().top) && ($elem.offset().top+$elem.height()>$(window).scrollTop())
}
var download={};
function timeToShow($elem,callback){
if (download[$elem]=='loaded') {
$(window).off('scoll resize',timeToShow($elem,callback));
return;
};
if (isVisible($elem)) {
$elem.find('.container').html(callback())
download[$elem]='loaded';
};
}
$(window).on('scroll resize',timeToShow($('.foot_nav'),footNavHtml))
$(window).on('scroll resize',timeToShow($('.foot'),footHtml))
timeToShow($('.foot_nav'),footNavHtml);
timeToShow($('.foot'),footHtml)1回答
好帮手慕星星
2019-08-31
同学你好,
参考修改:

第一个判断不要的原因:
滚动的时候,两个timeToShow方法会一起执行,并且会执行多次。当foot_nav加载出来后,就会执行第一个判断,给window清除scroll事件,这样foot元素即使满足条件,也不会执行timeToShow方法了,所以显示不出来。
自己可以测试下,祝学习愉快!
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