jquery image switching example analysis

jquery image switching example analysis_jquery
WBOY
Release： 2016-05-16 16:03:51
Original
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The example in this article describes the implementation method of jquery image switching. Share it with everyone for your reference. The details are as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script language="javascript" src="inc/jquery-1.4.2.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<style type="text/css">
#butt div{
 width:122px; height:32px; float:left; text-align:center;
}
</style>
<script language="javascript">
function tab_q(now_id)
{
if(now_id == null)
{
 //alert($("#butt").find("div:visible").attr("id"))
 c_show_id = $("#cont").find("div:visible").attr("id");
 //此时显示按钮的ID名称
 nums_id = c_show_id.substring(1,3);
 //截取B1后面的1，作为字符串放到C后面
 b_show_id = "b"+ nums_id;
 //此时显示内容的ID名称
 nums_next = parseInt(nums_id)+1
 //alert(nums_next)
 if(nums_next<=8)
 //如果到最后一个的话，那么就要跳回第一个
 {
 }
 else
 {
 nums_next = 1
 }
}else
{
nums_next = now_id.substring(1,3);
}
  $("#cont div").hide();
  //让所有的上面的div中的图片消失。
  //是为了罗出地方让下一张图片出现的。
  $("#butt div").css({border:'#FF0000 0px solid'});
  //让所有按钮的边框消失。是为了让下一个按钮有边框，
  //alert("#"+"c"+nums_next)
  $("#c"+nums_next).fadeIn() //让上面的图片淡出来
  $("#b"+nums_next).css({border:'#FF0000 1px solid'});
  //给下面对应的按钮加上边框，当然这里也可以做其他的效果
  //加边框只是为了测试
}
$(function(){ //当页面加载完成
 auto = setInterval("tab_q()",2000); //这里修改切换的时间的
 $("#cont div").each(function(i,n){
  $(n).hover(
  function(){
  clearInterval(auto) },
  function(){auto=setInterval("tab_q()",2000); }
  )
 })
 $("#butt div").each(function(i,n){
  $(n).hover(
  function(){
  clearInterval(auto);
  tab_q($(this).attr("id"))
  },function(){auto=setInterval("tab_q()",2000); }
  )
  })
})
</script>
<body>
<div style="width:980px; height:275px;">
 <div style="width:980px; height:241px; overflow:hidden; 
 text-align:center" id="cont">
  <div style="width:980px; height:241px; text-align:center" 
  id="c1"><img src="images/xmjz.jpg" width="980"/>
  </div>
  <div style="width:980px; height:241px; display:none; 
  text-align:center" id="c2">
  <img src="images/4037.jpg" width="980" height="241"/>
  </div>
  <div style="width:980px; height:241px; display:none; 
  text-align:center" id="c3"><img src="images/4041.jpg" 
  width="980" height="241"/></div>
  <div style="width:980px; height:241px; display:none; 
  text-align:center" id="c4">
  <img src="images/xmjz.jpg" width="980"/>
  </div>
  <div style="width:980px; height:241px; 
  display:none;text-align:center" id="c5">
  <img src="images/xmjz.jpg" width="980"/>
  </div>
  <div style="width:980px; height:241px; 
  display:none;text-align:center" id="c6">
  <img src="images/xmjz.jpg" width="980"/>
  </div>
  <div style="width:980px; height:241px; 
  display:none;text-align:center" id="c7">
  <img src="images/xmjz.jpg" width="980"/>
  </div>
  <div style="width:980px; height:241px; 
  display:none;text-align:center" id="c8">
  <img src="images/xmjz.jpg" width="980"/>
  </div>
 </div>
<div style="width:980px; height:31px; border:#FF0000 0px solid" 
id="butt">
<div style="background-image:url(images/xmbtn_1.png)" id="b1">
</div>
<div style="background-image:url(images/xmbtn_2.png)" id="b2">
</div>
<div style="background-image:url(images/xmbtn_2.png)" id="b3">
</div>
<div style="background-image:url(images/xmbtn_2.png)" id="b4">
</div>
<div style="background-image:url(images/xmbtn_2.png)" id="b5">
</div>
<div style="background-image:url(images/xmbtn_2.png)" id="b6">
</div>
<div style="background-image:url(images/xmbtn_2.png)" id="b7">
</div>
<div style="background-image:url(images/xmbtn_2.png)" id="b8">
</div>
</div>
</div>
</body>
</html>
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I hope this article will be helpful to everyone’s jQuery programming.