JS实现的左侧竖向滑动菜单效果代码

前端技术 2023/09/06 JavaScript

本文实例讲述了JS实现的左侧竖向滑动菜单效果代码。分享给大家供大家参考，具体如下：

这是一款经过改造的左侧竖向滑动菜单，基于JavaScript+CSS，没有过多的修饰，主要想实现菜单的动画效果，想用的朋友，自己美化吧。

运行效果截图如下：

在线演示地址如下：

http://demo.phpstudy.net/js/2015/js-left-scroll-style-menu-demo/

具体代码如下：

<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\">
<html xmlns=\"http://www.w3.org/1999/xhtml\">
<title>经过改造的左侧竖向滑动菜单</title>
<style type=\"text/css\">
body{
 margin:10px;
 padding:10px;
}
a:link { text-decoration: none;color: blue} 
a:active { text-decoration:blink} 
a:hover { text-decoration:underline;color: red} 
a:visited { text-decoration: none;color: green} 
body,td,div,span,li{
 font-size:12px;
}
.title01,.title02{
 color:#00b;
 font-weight:bold;
}
#DoorP{
 width:200px;
 height:300px;
 padding:0px;
 background:#FFFCF2;
}
.title01{
 width:100%;
 height:25px;
 background:#FFFCF2;
 cursor:pointer;
}
.title02{
 width:100%;
 height:25px;
 background:#FFFCF2;
 cursor:pointer;
}
.content{
 background:#FFFCF2;
 border-bottom:2px solid #fff;
 overflow:hidden;
 color:#666;
 padding-left:4px;
 padding-right:4px;
 line-height:18px;
}
.curved { 
 width:202px; 
 } 
.curved .b1, .curved .b2, .curved .b3, .curved .b4 { 
 font-size:1px; 
 display:block; 
 background:#FFFCF2; 
overflow: hidden; 
} 
.curved .b1, .curved .b2, .curved .b3 { 
 height:1px; 
 } 
.curved .b2, .curved .b3, .curved .b4 { 
 background:#FFFCF2; 
 border-left:1px solid #C7BC98; 
 border-right:1px solid #C7BC98; 
 } 
.curved .b1 { 
 margin:0 4px; 
 background:#C7BC98; 
 } 
.curved .b2 { 
 margin:0 2px; 
 border-width:0 2px; 
 } 
.curved .b3 { 
 margin:0 1px; 
 } 
.curved .b4 { 
 height:2px; 
 margin:0; 
 } 
.curved .c1 { 
 margin:0 5px; 
 background:#C7BC98; 
 } 
.curved .c2 { 
 margin:0 3px; 
 border-width:0 2px; 
 } 
.curved .c3 { 
 margin:0 2px; 
 } 
.curved .c4 { 
 height:2px; 
 margin: 0 1px; 
 } 
.curved .boxcontent { 
 display:block; 
 background:transparent; 
 border-left:1px solid #C7BC98; 
 border-right:1px solid #C7BC98; 
 font-size:0.9em; 
 text-align:justify; 
 } 
</style>
<div class=\"curved\"> 
 <b class=\"b1 c1\"></b> 
 <b class=\"b2 c2\"></b> 
 <b class=\"b3 c3\"></b> 
 <b class=\"b4 c4\"></b> 
 <div class=\"boxcontent\"> 
<div id=\"DoorP\">
 <table>
 <tr>
  <td align=\"center\">
   第一层信息
  </td>
 </tr>
 </table>
 <div class=\"content\" align=\"center\">
 <a href=\"#\">二层</a><br/>
 二层<br/>
 二层<br/>
 </div>
  <b class=\"b1\"></b> 
  <b class=\"b2\"></b> 
  <b class=\"b3\"></b> 
  <b class=\"b4\"></b> 
 <table>
 <tr>
  <td align=\"center\">
  第二层信息
  </td>
 </tr>
 </table>
<div class=\"content\" align=\"center\">
 <a href=\"#\">二层</a><br/>
 二层<br/>
 二层<br/>
 </div>
  <b class=\"b1\"></b> 
  <b class=\"b2\"></b> 
  <b class=\"b3\"></b> 
  <b class=\"b4\"></b> 
 <table>
 <tr>
  <td align=\"center\">
  第三层信息
  </td>
 </tr>
 </table>
<div class=\"content\" align=\"center\">
 <a href=\"#\">二层</a><br/>
 二层<br/>
 二层<br/>
 </div>
</div></div> 
 <b class=\"b4 c4\"></b> 
 <b class=\"b3 c3\"></b> 
 <b class=\"b2 c2\"></b> 
 <b class=\"b1 c1\"></b> 
<script type=\"text/javascript\">
 var open = 2;
 var openState = new Array();
 var closeState = new Array();
 var dH = 220;
 function $(id){
 if(document.getElementById(id))
 {
  return document.getElementById(id);
 }
 else
 {
  alert(\"没有找到!\");
 }
 }
 function $tag(id,tagName){
 return $(id).getElementsByTagName(tagName)
 }
 function closeMe(Cid,Oid){  
 var h = parseInt(Ds[Cid].style.height);
 //alert(h);
 if(h > 2)
 {
  h = h - Math.ceil(h/3);  
  Ds[Cid].style.height = h+\"px\";
 }
 else
 { 
  openMe(Oid);
  clearTimeout(closeState[Cid]);
  return false;
 }
 closeState[Cid] = setTimeout(\"closeMe(\"+Cid+\",\"+Oid+\")\");
 }
 function openMe(Oid){
 var h = parseInt(Ds[Oid].style.height); 
 //alert(h);
 if(h < dH)
 {
  h = h + Math.ceil((dH-h)/3);  
  Ds[Oid].style.height = h+\"px\";
 }
 else
 { 
  clearTimeout(openState[Oid]);  
  return false;
 }
 openState[Oid] = setTimeout(\"openMe(\"+Oid+\")\");
 }
 var Ds = $tag(\"DoorP\",\"div\");
 var Ts = $tag(\"DoorP\",\"table\");
 if(Ds.length != Ts.length)
 {
 alert(\"标题和内容数目不相同!\");
 }
 for(var i = 0 ; i < Ds.length ; i++)
 { 
 if(i==open)
 {
  Ds[i].style.height = dH+\"px\";
  Ts[i].className=\"title01\";
 }
 else
 {
  Ds[i].style.height = \"0px\";
  Ts[i].className=\"title02\";
 }
 Ts[i].value = i;
 Ts[i].onclick = function(){
  if(open==this.value)
  {
  return false;
  }
  Ts[open].className=\"title02\";
  Ts[this.value].className=\"title01\";
  for(var i = 0 ; i < openState.length ; i++)
  {
  clearTimeout(openState[i]);
  clearTimeout(closeState[i]);
  }
  closeMe(open,this.value);
  //openMe(this.value);
  open = this.value;
 }
 } 
 function showDiv(id){ 
 Ds[id].style.height=dH+\"px\";
 Ds[open].style.height=\"0px\";
 open = id;
 }
</script>

希望本文所述对大家JavaScript程序设计有所帮助。

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