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  • 练习题

    事件总结

    通用:
    onclick 鼠标单击
    ondblclick 鼠标双击
    onmouseover 鼠标放上
    onmouseout 鼠标离开
    onmousemove 鼠标移动
    表单:
    onchang 表单的值改变
    onblur 失去焦点
    onfocus 获得焦点
    onselect 选中

    1.单选按钮确定提交是否可用

      <div style="500px; height:500px;">
        <div style="margin-top:20px;">
        <input type="radio" name="sure" id="s1" onclick="KeYong()" />同意
        <input type="radio" name="sure" id="s2" onclick="BuKeYong()" />不同意
        </div>
        <div style="margin-top:30px">
        <input type="submit" value="确定" id="btn" style="100px; height:35px;" disabled="disabled" />
        </div>
      </div>

      <script type="text/javascript">
      function KeYong()
      {
        //找到按钮
        var a = document.getElementById("btn");

        //操作按钮属性
        a.removeAttribute("disabled");
      }
      function BuKeYong()
      {
        var a = document.getElementById("btn");
        a.setAttribute("disabled","disabled");
      }
      </script>

    2.倒计时按钮可用

      <div style="500px; height:500px; margin:100px 0px 0px 100px">

        <input id="btn" type="submit" value="确定" style="100px; height:35px" disabled="disabled" />
        <span id="daojishi">10</span>

        <div style="margin-top:20px">
          <span id="h"></span>
          <span id="m"></span>
          <span id="s"></span>
        </div>

      </div>

      

      <script type="text/javascript">

      window.setTimeout("YanChi()",1000);

      function YanChi()
      {
        var span = document.getElementById("daojishi");
        //改变span里面的值
        span.innerText = span.innerText-1;
        //判断是否减到了0
        if(span.innerText == 0)
        {
          document.getElementById("btn").removeAttribute("disabled");
          return;
        }
      window.setTimeout("YanChi()",1000);
      }
      window.setInterval("Bian()",1000);
      function Bian()
      {
      var sj = new Date();
      document.getElementById("h").innerText = sj.getHours();
      document.getElementById("m").innerText = sj.getMinutes();
      document.getElementById("s").innerText = sj.getSeconds();
      }

      </script>

    3.向列表内添加数据

      <select id="sel" style="200px;" size="10">
      <option>11</option>
      <option>22</option>
      <option>33</option>
      </select>
      <input type="text" id="nr" />
      <input type="button" value="添加" id="btn1" onclick="Add()" />

      <script type="text/javascript">
      function Add()
      {
        //取出用户输入的值
        /*var v = document.getElementById("nr").value;
        //向列表里面添加
        var list = document.getElementById("sel");
        list.innerHTML += "<option>"+v+"</option>";*/
        alert(document.getElementById("sel").value);
      }

    4.两个列表之间移动数据

      <div style="200px; height:300px; float:left">
        <select id="list1" size="10" style="200px; height:300px">
        <option>山东</option>
        <option>北京</option>
        <option>河北</option>
        <option>黑龙江</option>
        <option>河南</option>
        </select>
      </div>
      <div style="80px; height:300px; float:left">
        <input type="button" value="单移" id="btn1" style="70px; height:30px" onclick="Dan()"/>
        <input type="button" value="全移" id="btn2" style="70px; height:30px" onclick="Duo()"/>
      </div>
      <div style="200px; height:300px; float:left">
        <select id="list2" size="10" style="200px; height:300px">
        </select>
      </div>

      function Dan()
      {
        //把列表1选中值取出
        var list1 = document.getElementById("list1");
        var v = list1.value;
        //造一个option项
        var s = "<option class='o2'>"+v+"</option>";
        //判断list2里面是否有该项
        var attr = document.getElementsByClassName("o2");
        var cz = true;
        for(var i=0;i<attr.length;i++)
        {
          //alert(attr[i].innerHTML);
          if(attr[i].innerHTML==v)
          {
            cz = false;
            break;
          }
        }

        if(cz)
        {
          //将option项扔到list2
          var list2 = document.getElementById("list2");
          list2.innerHTML +=s;
        }
      }


      function Duo()
      {
      document.getElementById("list2").innerHTML = document.getElementById("list1").innerHTML;
      }

    5.日期时间选择


      <select id="year">
      </select>
      年
      <select id="month" onchange="FillDay()">
      </select>
      月
      <select id="day">
      </select>
      日

      FillYear();
      FillMonth();
      FillDay();
      function FillYear()
      {
        var sj = new Date();
        var nian = sj.getFullYear();

        var s = "";
        for(var i=nian-5;i<nian+6;i++)
        {
          if(i==nian)
          {
            s +="<option selected='selected'>"+i+"</option>";
          }
          else
          {
            s +="<option>"+i+"</option>";
          }
        }

        document.getElementById("year").innerHTML = s;
      

      function FillMonth()
      {
        var sj = new Date();
        var yue = sj.getMonth()+1;

        var s = "";
        for(var i=1;i<13;i++)
        {
          if(i==yue)
          {
            s +="<option selected='selected'>"+i+"</option>";
          }
          else
          {
            s +="<option>"+i+"</option>";
          }
        }

      document.getElementById("month").innerHTML=s;
      }

      function FillDay()
      {
        var sj = new Date();
        var tian = sj.getDate();

        //取月份求天数
        var yue = document.getElementById("month").value;
        var n = 31;
        if(yue==4 || yue==6 ||yue==9 ||yue==11)
        {
          n = 30;
        }
        else if(yue==2)
        {
          n=28;
        }

      //用循环添加
      var s = "";
      for(var i=1;i<n+1;i++)
      {
        if(i==tian)
        {
          s +="<option selected='selected'>"+i+"</option>";
        }
        else
        {
          s +="<option>"+i+"</option>";
        }
      }

      document.getElementById("day").innerHTML = s;

    }

    6..子菜单下拉

      <style type="text/css">
      *{ margin:0px auto; padding:0px}
      #menu{ 700px; height:40px; border:1px solid #999; margin-top:30px}
      .list{ 100px; height:40px; text-align:center; line-height:40px; vertical-align:middle; font-size:16px; font-family:微软雅黑; float:left}
      .list:hover{ cursor:pointer; background-color:#63C; color:white}
      .ziwai{0px; height:0px;position:relative; float:left; top:40px; left:-100px}
      .zi{ 100px; height:100px; background-color:#6C3; display:none }
      </style>

      <div id="menu">
        <div class='list' onmouseover="Show('z1')" onmouseout="YinCang()">首页</div>
        <div class="ziwai" >
          <div class="zi" id="z1"></div>
        </div>
        <div class='list' onmouseover="Show('z2')" onmouseout="YinCang()">产品介绍</div>
        <div class="ziwai" >
         <div class="zi" id="z2"></div>
        </div>
        <div class='list' onmouseover="Show('z3')" onmouseout="YinCang()">公司简介</div>
        <div class="ziwai" >
          <div class="zi" id="z3"></div>
        </div>
        <div class='list' onmouseover="Show('z4')" onmouseout="YinCang()">联系我们</div>
        <div class="ziwai" >
          <div class="zi" id="z4"></div>
        </div>
        <div class='list' onmouseover="Show('z5')" onmouseout="YinCang()">新闻动态</div>
        <div class="ziwai" >
          <div class="zi" id="z5"></div>
        </div>
      </div>

      <script type="text/javascript">
      function Show(id)
      {
        var attr = document.getElementsByClassName("zi");
        for(var i=0; i<attr.length;i++)
        {
          attr[i].style.display = "none";
        }
        document.getElementById(id).style.display = "block";
      }
      function YinCang()
      {
        var attr = document.getElementsByClassName("zi");
        for(var i=0; i<attr.length;i++)
        {
          attr[i].style.display = "none";
        }
      }
      </script>

    7.DIV做下拉列表

      <style type="text/css">
      *{ margin:0px auto; padding:0px}
      #xiala{ 180px; height:33px; border:1px solid #999;text-align:center; line-height:33px; vertical-align:middle; }
      #xiala:hover{ cursor:pointer}
      #zi{180px; height:150px; border:1px solid #63C; border-top:0px; display:none}
      .list{180px; height:33px; text-align:center; line-height:33px; vertical-align:middle; border-bottom:1px solid #63C; background-color:#CCC}
      .list:hover{ cursor:pointer; background-color:#63C; color:white}
      </style>

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

        <div id="xiala" onclick="Show()"></div>
        <div id="zi">
          <div class="list" onclick="Xuan(this)">山东</div>
          <div class="list" onclick="Xuan(this)">淄博</div>
          <div class="list" onclick="Xuan(this)">张店</div>
        </div>
      </div>

      <script type="text/javascript">
      function Show()
      {
        document.getElementById("zi").style.display="block";
      }
      function Xuan(ys)
      {
        var v = ys.innerText;
        document.getElementById("xiala").innerText = v;
        document.getElementById("zi").style.display="none";
      }
      </script>

    8.图片轮播

      <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>

    9.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>

    10.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 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>

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

    12.好友列表选中效果

      <style type="text/css">
      *{ margin:0px auto; padding:0px; font-family:微软雅黑; font-size:16px}
      .f{ 200px; height:30px; background-color:#63c; color:white; text-align:center; line-height:30px; vertical-align:middle; margin-top:3px}
      .f:hover{ cursor:pointer; background-color:#f63}
      </style>

      <div style=" 200px; height:600px; margin-top:30px">
        <div class="f" onclick="xuan(this)" onmouseover="bian(this)" onmouseout="hui(this)" xz="0">张三</div>
        <div class="f" onclick="xuan(this)" onmouseover="bian(this)" onmouseout="hui(this)" xz="0">李四</div>
        <div class="f" onclick="xuan(this)" onmouseover="bian(this)" onmouseout="hui(this)" xz="0">王五</div>
        <div class="f" onclick="xuan(this)" onmouseover="bian(this)" onmouseout="hui(this)" xz="0">赵六</div>
        <div class="f" onclick="xuan(this)" onmouseover="bian(this)" onmouseout="hui(this)" xz="0">马七</div>

      </div>

      <script type="application/x-javascript">
      function xuan(a)
      {
        var attr = document.getElementsByClassName("f");
        for(var i=0;i<attr.length;i++)
        {
          attr[i].style.backgroundColor="#63c";
          attr[i].setAttribute("xz","0");
        }
      a.setAttribute("xz","1");
      a.style.backgroundColor = "#f63";
      }
      function bian(a)
      {
        var attr = document.getElementsByClassName("f");
        for(var i=0;i<attr.length;i++)
        {
          if(attr[i].getAttribute("xz")=="0")
          {
            attr[i].style.backgroundColor="#63c";
          }
        }
        a.style.backgroundColor="#f63";
      }
      function hui(a)
      {
        var attr = document.getElementsByClassName("f");
        for(var i=0;i<attr.length;i++)
        {
          if(attr[i].getAttribute("xz")=="0")
          {
            attr[i].style.backgroundColor="#63c";
          }
        }
      }
      </script>

    做下拉滚动条 变小效果

      <div id="aa"></div>

      <div style="100px; height:1000px"></div>

      <script type="text/javascript">
      //取出DIV相对于页面上方的距离
      var p = document.getElementById("aa").offsetTop;
      //窗体的滚动事件
      window.onscroll = function ()
        {
          //取出当前页面的滚动距离
          var t = document.documentElement.scrollTop || document.body.scrollTop;
          if(t>p)
          {
            document.getElementById("aa").style.position = "fixed";
            document.getElementById("aa").style.width = "500px";
            document.getElementById("aa").style.height = "20px";
          }
          else if(t==p)
          {
            document.getElementById("aa").style.position = "fixed";
            document.getElementById("aa").style.width = "100%";
            document.getElementById("aa").style.height = "50px";
          }
        }
      </script>

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  • 原文地址:https://www.cnblogs.com/The-second/p/5900726.html
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