网页缩放到100%以下时，循环滚动的图片就停止了，再缩放到100%及以上，又自己滚动了
请大佬看看，要怎么解决这个bug呢。
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>RunJS</title>
<style>
img{border: none;}
#demo {
position: relative;
background: red;
overflow:hidden;
width: 500px;
}
#indemo {
float: left;
width: 800%;
}
#demo1 {
float: left;
}
#demo2 {
float: left;
}
</style>
<body>
<div id="demo">
<div id="indemo">
<div id="demo1">
<a href="#"><img src="img/1.png" border="0" /></a>
<a href="#"><img src="img/2.png" border="0" /></a>
<a href="#"><img src="img/3.png" border="0" /></a>
<a href="#"><img src="img/4.png" border="0" /></a>
<a href="#"><img src="img/5.png" border="0" /></a>
<a href="#"><img src="img/6.png" border="0" /></a>
</div>
<div id="demo2"></div>
</div>
</div>
<div>
<p id="tab"></p>
<p id="tab2"></p>
</div>
<script>
var speed=10; //数字越大速度越慢
var tab=document.getElementById("demo");
var tab1=document.getElementById("demo1");
var tab2=document.getElementById("demo2");
tab2.innerHTML=tab1.innerHTML;
function Marquee(){
document.getElementById('tab').innerHTML=tab.scrollLeft
document.getElementById('tab2').innerHTML=tab2.offsetWidth
if(tab2.offsetWidth-tab.scrollLeft<=0)
tab.scrollLeft-=tab1.offsetWidth
else{
tab.scrollLeft++;
}
}
var MyMar=setInterval(Marquee,speed);
tab.onmouseover=function() {clearInterval(MyMar)};
tab.onmouseout=function() {MyMar=setInterval(Marquee,speed)};
</script>
</body>
</html>
qq_控心_01回答
-
stone310
测试了一下，scrollleft的变化值，当页面缩小时，只有取缩小的整数倍才发生变化（例如缩小2倍，就要2的倍数）；具体原理可能跟scrollleft属性相关；建议做无缝还是用absolute然后left控制更稳定写了个把你的代码修改了下，可以看的更清楚，你可以测试一下<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>RunJS</title> <style> img{border: none;} #demo { position: relative; background: red; overflow:hidden; width: 500px; } #indemo { float: left; width: 800%; } #demo1 { float: left; } #demo2 { float: left; } </style> </head> <body> <div id="demo"> <div id="indemo"> <div id="demo1"> <a href="#"><img src="img/1.png" border="0" /></a> <a href="#"><img src="img/2.png" border="0" /></a> <a href="#"><img src="img/3.png" border="0" /></a> <a href="#"><img src="img/4.png" border="0" /></a> <a href="#"><img src="img/5.png" border="0" /></a> <a href="#"><img src="img/6.png" border="0" /></a> </div> <div id="demo2"></div> </div> </div> <div> <p id="tab"></p> <p id="tab2"></p> </div> <p style="font-size:30px"><b>用键盘左右键控制以下拉杆</b></p> <input type="range" min="0" max="100" id="range1" style="width:1000px;" value="0" autofocus/> <script> var speed=10; //数字越大速度越慢 var tab=document.getElementById("demo"); var tab1=document.getElementById("demo1"); var tab2=document.getElementById("demo2"); var range1=document.getElementById("range1") tab2.innerHTML=tab1.innerHTML; var range=0 var a range1.onchange=function(){ range=parseInt(range1.value) } function Marquee(){ a=tab.scrollLeft; if(tab2.offsetWidth-tab.scrollLeft<=0){ tab.scrollLeft-=tab1.offsetWidth } else{ tab.scrollLeft=tab.scrollLeft+range; document.getElementById('tab').innerHTML="当前设置的移动的速度是:"+range document.getElementById('tab2').innerHTML="scrollLeft对应变化值是"+( tab.scrollLeft-a) } } var MyMar=setInterval(Marquee,speed); tab.onmouseover=function() {clearInterval(MyMar)}; tab.onmouseout=function() {MyMar=setInterval(Marquee,speed)}; </script> </body> </html>
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