JS实现横向拉伸动感伸缩菜单效果代码

2019-11-20 11:36:58

字体：大中小

来源：转载

供稿：网友

本文实例讲述了JS实现横向拉伸动感伸缩菜单效果代码。分享给大家供大家参考。具体如下：

这是一款JS实现的纵向拉伸变横向拉伸，动感伸缩菜单，紧身排列的CSS菜单，可用在博客等重要的位置部分作菜单，学习JavaScript前端设计的也可以作为参考范例。

运行效果截图如下：

在线演示地址如下：

http://demo.VeVB.COm/js/2015/js-row-show-menu-style-codes/

具体代码如下：

<!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><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>有弹性的菜单</title><style>*{ margin:0px; padding:0px;} body { background:#fff;} .naver{list-style-type:none; width:700px; overflow:hidden; margin:100px auto 0;} .naver li{ width:100px;height:50px; overflow:hidden; font-size:16px; text-align:center; cursor:pointer; } .naver li a,.naver li a:hover{display: block;width:100px; height:50px;line-height: 50px; color:#FFF; text-decoration: none; } .co1{ background:#649e37}.co2{ background:#028fbc}</style><script type="text/javascript">  window.onload = function() {   var oUl = document.getElementById("nav");   var aLi = oUl.getElementsByTagName("li");   var i = 0;   for (i = 0; i < aLi.length; i++) {    aLi[i].timer = null;    aLi[i].speed = 0;    aLi[i].onmouseover = function() {     startMove(this, 250);    };    aLi[i].onmouseout = function() {     startMove2(this, 100);    };   }  };  function startMove(obj, iTarget) {   if (obj.timer) {    clearInterval(obj.timer);   }   obj.timer = setInterval(function() {    doMove(obj, iTarget);   }, 30)  };  function doMove(obj, iTarget) {   obj.speed += 3;   if (Math.abs(iTarget - obj.offsetWidth) < 1 && Math.abs(obj.speed) < 1) {    clearInterval(obj.timer);    obj.timer = null;   }   else {    if (obj.offsetWidth + obj.speed >= iTarget) {     obj.speed *= -0.7;     obj.style.width = iTarget + "px";    }    else {     obj.style.width = obj.offsetWidth + obj.speed + "px";    }   }  };  function startMove2(obj, iTarget) {   if (obj.timer) {    clearInterval(obj.timer);   }   obj.timer = setInterval(function() {    doMove2(obj, iTarget);   }, 30)  };  function doMove2(obj, iTarget) {   obj.speed -= 3;   if (Math.abs(iTarget - obj.offsetWidth) < 1 && Math.abs(obj.speed) < 1) {    clearInterval(obj.timer);    obj.timer = null;   }   else {    if (obj.offsetWidth + obj.speed <= iTarget) {     obj.speed *= -0.7;     obj.style.width = iTarget + "px";    }    else {     obj.style.width = obj.offsetWidth + obj.speed + "px";    }   }  };</script></head><body> <ul id="nav" class="naver">  <li class="co1">   <a href="#">首页</a>  </li>  <li class="co2">   <a href="#">爱好</a>  </li>  <li class="co1">   <a href="#">作品</a>  </li>  <li class="co2">   <a href="#">联系</a>  </li>  <li class="co1">   <a href="#">博客</a>  </li> </ul></body></html>

希望本文所述对大家的javascript程序设计有所帮助。

上一篇：基于JS实现简单的样式切换效果代码

下一篇：js实现简洁的滑动门菜单(选项卡)效果代码