zoukankan      html  css  js  c++  java
  • 9.23例子解析

    1.图片轮播

    <style type="text/css">
    *{ margin:0px auto; padding:0px; font-family:微软雅黑; font-size:14px;}

    </style>

    <div style="1000px; height:250px; margin-top:30px">
    <img src="img/11.jpg" width="1000" height="250" />
    <img src="img/22.png" width="1000" height="250" style="display:none" />
    <img src="img/33.png" width="1000" height="250" style="display:none" />
    <img src="img/44.png" width="1000" height="250" style="display:none" />
    </div>

    <script type="text/javascript">

    window.setInterval("Huan()",2000);


    //找到图片的最大索引
    var n = document.getElementsByTagName("img").length-1;
    //存当前图片的索引
    var d =0;

    //换图
    function Huan()
    {
    //找到所有图片
    var attr = document.getElementsByTagName("img");

    //当前索引加1
    d++;

    //判断索引是否超出范围
    if(d>n)
    {
      d = 0;
    }

    //换图
    //让所有隐藏
    for(var i=0;i<=n;i++)
    {
      attr[i].style.display = "none";
    }

    //让该索引的显示
    attr[d].style.display = "block";
    }

    </script>

    2.选项卡效果

    <style type="text/css">
    *{ margin:0px auto; padding:0px}
    #menu{ 240px; height:30px;}
    .list{ 60px; height:30px; float:left; text-align:center; line-height:30px; vertical-align:middle;}
    .list:hover{ cursor: pointer}
    .nr{ 240px; height:200px; text-align:center; line-height:200px; vertical-align:middle}
    </style>

    <div style="700px; height:500px; margin-top:30px">

    <div id="menu">
    <div class="list" style="background-color:#0F0" onclick="Show('d1')">娱乐</div>
    <div class="list" style="background-color:#369" onclick="Show('d2')">社会</div>
    <div class="list" style="background-color:#F60" onclick="Show('d3')">体育</div>
    <div class="list" style="background-color:#CC3" onclick="Show('d4')">军事</div>
    </div>

      <div id="d1" class="nr" style="background-color:#3C0">
      娱乐新闻
      </div>
      <div id="d2" class="nr" style="background-color:#399; display:none">
      社会新闻
      </div>
      <div id="d3" class="nr" style="background-color:#F30; display:none">
      体育新闻
      </div>
      <div id="d4" class="nr" style="background-color:#CF3; display:none">
      军事新闻
      </div>

    </div>

    <script type="text/javascript">

    function Show(id)
    {
      //隐藏所有
      var attr = document.getElementsByClassName("nr");
      for(var i=0;i<attr.length;i++)
      {
        attr[i].style.display = "none";
      }
      //显示当前的
      document.getElementById(id).style.display = "block";
    }

    </script>

    3.滑动效果

    <style type="text/css">
    *{ margin:0px auto; padding:0px}
    #left{ height:600px; background-color:#63C; float:left}
    #right{ height:600px; background-color:#F33; float:left}
    #btn{ 30px; height:30px; background-color:#FFF; position:relative; top:285px; color:#60F; font-weight:bold; text-align:center; line-height:30px; vertical-align:middle; float:left}
    #btn:hover{ cursor:pointer}
    </style>

    <div style="1000px; height:600px">

     <div id="left" style="200px;">
     <div id="btn" onclick="Bian()" style="left:185px;">-></div>
     </div>
     <div id="right" style="800px;">
    </div>

    <script type="text/javascript">

    function Bian()
    {
      Dong();
    }

    //改变大小和位置
    function Dong()
    {
    var d1 = document.getElementById("left");
    var d2 = document.getElementById("right");
    var btn = document.getElementById("btn");

    //左侧DIV变宽
    var yskd1 = d1.style.width;
    var w1 = yskd1.substr(0,yskd1.length-2);
    var w1 = parseInt(w1)+2;

    d1.style.width = w1+"px";

    //右侧DIV变窄
    var yskd2 = d2.style.width;
    var w2 = yskd2.substr(0,yskd2.length-2);
    var w2 = parseInt(w2)-2;
    d2.style.width = w2+"px";

    //将按钮移动
    var ysjl = btn.style.left;
    var w3 = ysjl.substr(0,ysjl.length-2);
    var w3 = parseInt(w3)+2;
    btn.style.left = w3+"px";

      if(w2>200)
      {
        //自己调自己
        window.setTimeout("Dong()",1);
      }

    }

    </script>

    4.进度条的制作

    <style type="text/css">
    *{ margin:0px auto; padding:0px}
    #wai{ 200px; height:10px; border:1px solid #60F;}
    #nei{ 0px; height:10px; background-color:#F33; float:left}
    </style>

    <div style="600px; height:300px; margin-top:30px">


      <div id="wai">
        <div id="nei">
        </div>
      </div>

    <input type="button" value="开始" onclick="Start()" />
    </div>

    <script type="text/javascript">

    function Start()
    {
      Bian();
    }

    var bfb = 0;
    function Bian()
    {
      //将百分比变化
      bfb= bfb+1;

      //改变宽度
      document.getElementById("nei").style.width = bfb+"%";

      //判断
      if(bfb<100)
      {
        window.setTimeout("Bian()",50);
      }

    }

    </script>

  • 相关阅读:
    自动封箱和拆箱
    关于Java的一道内存的题目
    volatile关键字
    阶乘尾零
    Java之final的解析
    从1到n整数中1出现的次数
    最小安装雷达数量
    二叉树重建
    最短路径—Dijkstra算法
    PAT A1063——set的常见用法详解
  • 原文地址:https://www.cnblogs.com/u1020641/p/5900803.html
Copyright © 2011-2022 走看看