网页制作之JavaScript部分3--事件及事件传输方式(函数调用 练习题 )重要---持续更新中

一、 事件:说白了就是调用函数的一种方式。它包括:事件源、事件数据、事件处理程序。

 JS事件

1、js事件通常和函数结合来使用,这样可以通过发生的事件来驱动函数的执行,从而引起html出现不同的效果。

2、属性(当这些事件的属性发生改变时,会触发function{}的函数):

1)onabort:当图像加载被中断时,会引发function内的函数。

2)onbur:当元素失去焦点;

3)onfocus:当元素获得焦点,获得焦点,就是文本框里面的内容修改

4)onclick:鼠标点击某个对象

 

5)ondbclick:鼠标双击某个对象

6)onerror:当加载文档或图像时发生某个错误

7)onchange:当用户改变域的内容(onchange事件常结合对输入的字段验证来使用,常用语表单验证身份证、邮箱注册及登录、区号等等的格式是否正确)

8)onkeydown:某个键盘的键被按下

9)onkeypress:某个键盘的键被按下或按住

10)onkeyup:某个键盘的键被松开

11)onload:某个页面或图像被完成加载

12)onmousedown:某个鼠标按键被按下(onmousedown, onmouseup 以及 onclick 构成了鼠标点击事件的所有部分。首先当点击鼠标按钮时,会触发 onmousedown 事件,当释放鼠标按钮时,会触发 onmouseup 事件,最后,当完成鼠标点击时,会触发 onclick 事件。)

13)onmousemove:鼠标被移动

14)onmouseout:鼠标从某元素移开

15)onmouseover:鼠标被移动到某元素之上

16)onmouseup:某个鼠标按钮被松开(区别onkeyup)

17)onreset:重置按钮被点击

18)onresize:窗口或框架被调整尺寸

19)onselect:文本被选定

20)onsubmit:提交按钮被点击

21)onunload:用户退出页面

 

二、事件传输(注意与c#的参数传递区别)

1、整型参数:直接写在括号里

eg.

 <body>
<div class="t1" onclick="a(0)"></div>   //a(0)
<div class="t1" onclick="a(1)"></div>


</body>

<script type="text/javascript">

var t=new Array();
t[0]="url(05.gif)";
t[1]="url(06.gif)";


function a(m)
{
    n.style.backgroundImage=t[m];
    if(m==8)
    {
        alert("你失败了!");
    }
}

</script>

 

2.字符串 参数,双引号嵌套,里面要用单引号(不只是在传参的时候)

eg.

<body>
  <div class="t1" onclick="a('abc')"></div>
<body/>

<script type="text/javascript">

function a(n)
{
    alert(n);
}

</script>

输出结果:
abc

 

 3.传自身元素:参数写this,this代表该元素(this是JavaScript中功能最强大的关键字之一。)(形参的传递不止一个)

eg.扫雷游戏

 1 <body>
 2 //方式一利用this调用自身
 3 <div id="d1">
 4     <div class="t1" onclick="a(this,0)"></div>
 5     <div class="t1" onclick="a(this,1)"></div>
 6     <div class="t1" onclick="a(this,2)"></div>
 7     <div class="t1" onclick="a(this,3)"></div>
 8     <div class="t1" onclick="a(this,4)"></div>
 9     <div class="t1" onclick="a(this,5)"></div>
10     <div class="t1" onclick="a(this,6)"></div>
11     <div class="t1" onclick="a(this,7)"></div>
12     <div class="t1" onclick="a(this,8)"></div>
13     <div class="t1" onclick="a(this,9)"></div>
14     <div class="t1" onclick="a(this,10)"></div>
15     <div class="t1" onclick="a(this,11)"></div>
16     <div class="t1" onclick="a(this,12)"></div>
17     <div class="t1" onclick="a(this,13)"></div>
18     <div class="t1" onclick="a(this,14)"></div>
19     <div class="t1" onclick="a(this,15)"></div>
20     <div class="t1" onclick="a(this,16)"></div>
21     <div class="t1" onclick="a(this,17)"></div>
22     <div class="t1" onclick="a(this,18)"></div>
23     <div class="t1" onclick="a(this,19)"></div>
24 </div>
25 
26 </body>
27 
28 <script type="text/javascript">
29 
30 var t=new Array();//数组
31 t[0]="url(05.gif)";t[1]="url(06.gif)";t[2]="url(07.gif)";t[3]="url(08.gif)";t[4]="url(09.gif)";
32 t[5]="url(15.gif)";t[6]="url(16.gif)";t[7]="url(17.gif)";t[8]="url(18.gif)";t[9]="url(19.gif)";
33 t[10]="url(25.gif)";t[11]="url(26.gif)";t[12]="url(27.gif)";t[13]="url(28.gif)";t[14]="url(29.gif)";
34 t[15]="url(35.gif)";t[16]="url(36.gif)";t[17]="url(37.gif)";t[18]="url(38.gif)";t[19]="url(39.gif)";
35 
36 
37 function a(n,m)
38 {
39     /*var s=new Array();
40     s=document.getElementsByClassName("t1");*/
41     n.style.backgroundImage=t[m];
42     if(m==8)
43     {
44         alert("你失败了!");
45     }
46 }
47 
48 </script>
49 
50 方式二 利用document.getElementsByClassName()返回数组特性
51 利用class数组
52 <div id="d1">
53     <div class="t1" onclick="a(0)"></div>
54     <div class="t1" onclick="a(1)"></div>
55     <div class="t1" onclick="a(2)"></div>
56     <div class="t1" onclick="a(3)"></div>
57     <div class="t1" onclick="a(4)"></div>
58     <div class="t1" onclick="a(5)"></div>
59     <div class="t1" onclick="a(6)"></div>
60     <div class="t1" onclick="a(7)"></div>
61     <div class="t1" onclick="a(8)"></div>
62     <div class="t1" onclick="a(9)"></div>
63     <div class="t1" onclick="a(10)"></div>
64     <div class="t1" onclick="a(11)"></div>
65     <div class="t1" onclick="a(12)"></div>
66     <div class="t1" onclick="a(13)"></div>
67     <div class="t1" onclick="a(14)"></div>
68     <div class="t1" onclick="a(15)"></div>
69     <div class="t1" onclick="a(16)"></div>
70     <div class="t1" onclick="a(17)"></div>
71     <div class="t1" onclick="a(18)"></div>
72     <div class="t1" onclick="a(19)"></div>
73 </div>
74 
75 </body>
76 
77 <script type="text/javascript">
78 
79 var t=new Array();//数组
80 t[0]="url(05.gif)";t[1]="url(06.gif)";t[2]="url(07.gif)";t[3]="url(08.gif)";t[4]="url(09.gif)";
81 t[5]="url(15.gif)";t[6]="url(16.gif)";t[7]="url(17.gif)";t[8]="url(18.gif)";t[9]="url(19.gif)";
82 t[10]="url(25.gif)";t[11]="url(26.gif)";t[12]="url(27.gif)";t[13]="url(28.gif)";t[14]="url(29.gif)";
83 t[15]="url(35.gif)";t[16]="url(36.gif)";t[17]="url(37.gif)";t[18]="url(38.gif)";t[19]="url(39.gif)";
84 
85 
86 function a(m)
87 {
88     var s=new Array();
89     s=document.getElementsByClassName("t1");
90         s[m].style.backgroundImage=t[m];
91     if(m==8)
92     {
93         alert("你失败了!");
94     }
95 }
96 
97 </script>

 

三、练习题部分

 eg1.图片轮播

(注意

window.setInterval("a()",1000);与window.setTimeout("a()",1000);应用时,一定要注意放的位置。先执行延时再执行代码(如果放在这两句后面的代码就不会执行了)

<div id="d" style="background-image:url(328477.jpg)"></div>

<input type="button" value="按钮" onclick="b()"/>
<input type="button" value="暂停" onclick="c()"/>
</body>
<script type="text/javascript">

var t= new Array();
t[0]="url(328477.jpg)";
t[1]="url(330527.jpg)";
t[2]="url(343107.jpg)";
var n=0;

function a()
{
    if(n==2)
    {
        n=0;
    }
    else
    {
        n++;
    }
    document.getElementById("d").style.backgroundImage=t[n];//用
    /*window.setTimeout("a()",1000);*/
}

/*window.setTimeout("a()",1000);*/
var r= new Array();
function b()
{
    r[0]=window.setInterval("a()",1000);//用数组存储,因为不清楚window.setInterval("a()",1000)类型
}

function c()
{
    window.clearInterval(r[0]);
}
</script>

 

 eg2、广告弹窗

方法一:比较简便
<body>
<img src="1-2.jpg"/>
<img src="1-2.jpg"/>
<img src="1-2.jpg"/>
<div id="gg" style="display:none"></div>
</body>
<script type="text/javascript">
function showg()
{
    document.getElementById("gg").style.display="block";
    window.setTimeout("hideg()",5000);
}
function hideg()
{
    document.getElementById("gg").style.display="none";
}
window.setTimeout("showg()",5000);

</script>
方式二 (自己做的)
<div id="d1"></div>
<div id="d2" style="display:none"></div>

</body>
<script type="text/javascript">
var n=9;
function a()
{
    n--;
    if(n>=0)
    {
        window.setTimeout("a()",1000);
        if(n==5)
        {
            document.getElementById("d2").style.display="block";
        }
        if(n==0)
        {
            document.getElementById("d2").style.display="none";
        }
    }
    
}
window.setTimeout("a()",1000);
</script>

 

eg3.关灯效果

 1 <style type="text/css">
 2 #gd
 3 {
 4     width:100%;
 5     height:100%;
 6     background-color:#333;
 7     filter:alpha(opacity=50);-moz-opacity:0.5;opacity: 0.5;
 8     position:fixed;
 9     top:0px;
10     left:0px;
11     z-index:1;
12 }
13 </style>
14 </head>
15 
16 <body>
17 <div style="z-index:2; height:30px; position:absolute;"><input type="button" value="开关灯" onclick="deng()" /></div>
18 <img src="1-2.jpg"/>
19 <img src="1-2.jpg"/>
20 <img src="1-2.jpg"/>
21 <div id="gd" style="display:none"></div>
22 </body>
23 <script type="text/javascript">
24 function deng()
25 {
26     //alert("ss");
27     var s = document.getElementById("gd").style.display;
28     if(s=="block")
29     {
30         document.getElementById("gd").style.display="none";
31     }
32     else
33     {
34         document.getElementById("gd").style.display="block";
35     }
36 }
37 </script>

 

 eg4、光棒效果

<body>
<table width="600" border="1" cellpadding="0" cellspacing="0">
  <tr onmouseover="showcolor(this)" onmouseout="huifu(this)" style="background-color:#3F0">
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
  <tr onmouseover="showcolor(this)" onmouseout="huifu(this)" style="background-color:#3F0">
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
  <tr onmouseover="showcolor(this)" onmouseout="huifu(this)" style="background-color:#3F0">
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
  <tr onmouseover="showcolor(this)" onmouseout="huifu(this)" style="background-color:#3F0">
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
  <tr onmouseover="showcolor(this)" onmouseout="huifu(this)" style="background-color:#3F0">
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
</table>

<select>
    <option>11</option>
    <option>11</option>
    <option>11</option>
</select>
</body>
<script type="text/javascript">
function showcolor(a)
{
    a.style.backgroundColor="white";
}
function huifu(b)
{
    b.style.backgroundColor="#3F0";
}
</script>

 事件冒泡:

当元素嵌套的时候,内部元素激发某个事件后,默认情况下外部元素相应的也会触发。

 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 2 <HTML>
 3  <HEAD>
 4   <TITLE> New Document </TITLE>
 5   <META NAME="Generator" CONTENT="EditPlus">
 6   <META NAME="Author" CONTENT="">
 7   <META NAME="Keywords" CONTENT="">
 8   <META NAME="Description" CONTENT="">
 9  </HEAD>
10 
11  <BODY>
12   <div onclick="test()">
13     <div onclick="test()">
14         <div onclick="test()">阻止事件冒泡</div>
15     </div>
16 </div>
17  </BODY>
18 </HTML>
19 <SCRIPT LANGUAGE="JavaScript">
20 <!--
21     //阻止事件冒泡
22     function stopEventBubble(event){
23         var e=event || window.event;
24 
25         if (e && e.stopPropagation){
26             e.stopPropagation();    
27         }
28         else{
29             e.cancelBubble=true;
30         }
31     }
32 
33     //测试方法,调用时,直接调用test()或者test(event),前者默认在调用最后一个未对应的参数传递事件
34     function test(evt){
35         alert('hahaha');
36         stopEventBubble(evt);
37     }
38 //-->
39 </SCRIPT>

 

 eg.5做一个漂亮的下拉菜单选择框

 1 <style type="text/css">
 2 *{margin:0px auto;
 3 padding:0px;}
 4 .m
 5 {
 6     width:200px;
 7     height:30px;
 8     background-color:#339;
 9     color:white;
10     font-weight:bold;
11     text-align:center;
12     line-height:30px;
13     vertical-align:middle;
14 }
15 #txt
16 {
17     font-size:14px;
18     text-align:center;
19 }
20 </style>
21 </head>
22 
23 <body>
24 <div style="width:100%; height:600px;" onclick="hidemenu()">
25     <div style="width:200px">
26         <input id="txt" type="text" value="" style="width:196px; height:28px;" onclick="showmenu()" />
27         <div id="menu" style="display:none">
28             <div class="m" onmouseover="change(this)" onclick="selectme(this)">家电</div>
29             <div class="m" onmouseover="change(this)" onclick="selectme(this)">服装</div>
30             <div class="m" onmouseover="change(this)" onclick="selectme(this)">数码</div>
31             <div class="m" onmouseover="change(this)" onclick="selectme(this)">食品</div>
32             <div class="m" onmouseover="change(this)" onclick="selectme(this)">玩具</div>
33         </div>
34     </div>
35 </div>
36 </body>
37 <script type="text/javascript">
38 
39     //第1步、如何显示下拉列表
40     function showmenu()
41     {
42         var d = document.getElementById("menu");
43         d.style.display="block";
44         stopEventBubble(event);//由于受外层div嵌套影响,加上阻止事件冒泡
45     }
46 
47     //第2步、如何隐藏下拉列表
48     function hidemenu()
49     {
50         var d = document.getElementById("menu");
51         d.style.display="none";
52     }
53 
54     //第3步、下拉菜单的变色效果
55     function change(a)
56     {
57         huifu();//让他恢复默认的颜色效果,目的只让this本身变色
58         a.style.backgroundColor="#60F";
59     }
60     //恢复默认 下拉菜单的原本 背景颜色
61     function huifu()
62     {
63         var s = document.getElementsByClassName("m");
64         for(var i=0; i<s.length;i++)
65         {
66             s[i].style.backgroundColor="#339";
67         }
68     }
69     
70     
71     //第4步、点击下拉列表,改变输入框中的value
72     function selectme(a)
73     {
74         document.getElementById("txt").value=a.innerText;
75     }
76     
77     
78     //阻止事件冒泡函数
79     function stopEventBubble(event){
80         var e=event || window.event;
81 
82         if (e && e.stopPropagation){
83             e.stopPropagation();    
84         }
85         else{
86             e.cancelBubble=true;
87         }
88     }
89 </script>
90 </html>

eg6、”踩雷游戏“

 1 <style type="text/css">
 2 .d
 3 {
 4     width:200px;
 5     height:200px;
 6     float:left;
 7     background-color:#039;
 8     border:1px solid white;
 9 }
10 </style>
11 </head>
12 
13 <body>
14 <div id="wai">
15    
16 </div>
17 </body>
18 <script type="text/javascript">
19 var img = new  Array();
20 img[0]="url(../../WorkTools/%E5%9B%BE%E6%A0%87/20150125090904182_easyicon_net_256.png)";
21 img[1]="url(../../WorkTools/%E5%9B%BE%E6%A0%87/20150125090904182_easyicon_net_256.png)";
22 img[2]="url(../../WorkTools/%E5%9B%BE%E6%A0%87/20150125090904182_easyicon_net_256.png)";
23 img[3]="url(../../WorkTools/%E5%9B%BE%E6%A0%87/20150125090904182_easyicon_net_256.png)";
24 img[4]="url(../../WorkTools/%E5%9B%BE%E6%A0%87/20150125090904182_easyicon_net_256.png)";
25 img[5]="url(../../WorkTools/%E5%9B%BE%E6%A0%87/20150125090904182_easyicon_net_256.png)";
26 img[6]="url(../../WorkTools/%E5%9B%BE%E6%A0%87/20150125090904182_easyicon_net_256.png)";
27 img[7]="url(../../WorkTools/%E5%9B%BE%E6%A0%87/20150125090904182_easyicon_net_256.png)";
28 img[8]="url(../../WorkTools/%E5%9B%BE%E6%A0%87/20150125090904182_easyicon_net_256.png)";
29 jiazai();
30 
31 //利用函数进行div的布局,简单
32 function jiazai()
33 {
34     var s = "";
35     for(var i=0;i<9;i++)
36     {
37         if(i==2 || i==5)
38         {
39             s=s+" <div class='d' onclick='showimg(this,"+i+")'></div><div style='clear:both'></div>";
40         }
41         else
42         {
43             s = s+" <div class='d' onclick='showimg(this,"+i+")'></div>";
44         }
45     }
46     
47     var d = document.getElementById("wai");
48     d.innerHTML=s;
49 }
50 
51 function showimg(a,b)
52 {
53     a.style.backgroundImage=img[b];
54     if(b==6)
55     {
56         alert("踩到雷了!");
57         window.close();
58     }
59 }

 

 

方式二、利用透明度效果(将大DIV设背景图片,小DIV设背景颜色并设置触发的事件(当点击小DIV时它的背景颜色变为透明))

 1 <head>
 2 <title>无标题文档</title>
 3 <style type="text/css">
 4 *
 5 {
 6     margin:0px auto;
 7     padding:0px;
 8 }
 9 #a1 div
10 {
11     width:100px;
12     height:100px;
13     background-color:#09F;
14     border:1px solid black;
15     float:left;
16 }
17 #a1
18 {
19     width:410px;
20     height:410px;
21     background-image:url(../../../Pictures/1437459768106.jpg);
22 }
23 </style>
24 </head>
25 
26 <body>
27 <div id="a1">
28     <div id="aa1" onclick="pic(this)"></div>
29     <div id="aa2" onclick="pic(this)"></div>
30     <div id="aa3" onclick="pic(this)"></div>
31     <div id="aa4" onclick="pic(this)"></div>
32     <div id="bb1" onclick="pic(this)"></div>
33     <div id="bb2" onclick="pic(this)"></div>
34     <div id="bb3" onclick="pic(this)"></div>
35     <div id="bb4" onclick="pic(this)"></div>
36     <div id="cc1" onclick="pic(this)"></div>
37     <div id="cc2" onclick="pic(this)"></div>
38     <div id="cc3" onclick="pic(this)"></div>
39     <div id="cc4" onclick="pic(this)"></div>
40     <div id="dd1" onclick="pic(this)"></div>
41     <div id="dd2" onclick="pic(this)"></div>
42     <div id="dd3" onclick="pic(this)"></div>
43     <div id="dd4" onclick="pic(this)"></div>
44 </div>
45 </body>
46 <script type="text/javascript">
47 function pic(a)
48 {
49     a.style.opacity="0";
50 }
51 </script>

 

 eg7、文字的渐入效果(逐渐出现)

 1 <style type="text/css">
 2 #shi
 3 {
 4     font-family:"Times New Roman", Times, serif;
 5     font-size:40px;
 6     font-weight:bold;
 7     color:#60F;
 8     height:50px;
 9     width:500px;
10 }
11 </style>
12 </head>
13 
14 <body>
15     <div id="wai" style="width:0px; height:50px; overflow:hidden;">
16         <div id="shi">床前明月光</div>
17     </div>
18 </body>
19 <script type="text/javascript">
20 showshi();
21 function showshi()
22 {
23     var d = document.getElementById("wai");
24     if(parseInt(d.style.width)<500)
25     {
26         var w = parseInt(d.style.width)+1;
27         d.style.width= w+"px";
28         window.setTimeout("showshi()",20);
29     }
30     
31 }
32 </script>

 eg8.背景的左右渐进效果

老师版
<body>
<input id="img1" type="image" value="开始" src="../../WorkTools/素材/图标/12Nc4391L0-33393.png" style=" width:40px; height:40px;position:absolute; left:190px; top:300px; margin-left:0px; display:block" onclick="rightmove()" />
<input id="img2" type="image" src="../../WorkTools/素材/图标/12Nc4391030-1VL.png" style=" width:40px; height:40px;position:absolute; right:200px; top:300px; margin-right:0px; display:none" onclick="leftmove()" />

<div style="width:100%; height:600px; overflow:hidden">
    <div style="width:1600px; height:600px;">
        <div id="d1" style="width:800px; height:600px; background-color:#309; float:left; margin-left:-600px;">
        </div>
        <div id="d2" style="width:800px; height:600px; background-color:#F03; float:left">
        </div>
    </div>
</div>
</body>
<script type="text/javascript">
function rightmove()
{
    var dd = document.getElementById("d1");
    var bb = document.getElementById("img1");
    if(parseInt(dd.style.marginLeft)<0)
    {
        var bm = parseInt(bb.style.marginLeft)+1;
        var m = parseInt(dd.style.marginLeft)+1;
        dd.style.marginLeft=m+"px";
        bb.style.marginLeft=bm+"px";
        var t = window.setTimeout("rightmove()",2);//注意延时必须放于此住,?自己想!
    }
    else
    {
        window.clearTimeout(t);
        document.getElementById("img1").style.display="none";
        document.getElementById("img1").style.marginLeft=0+"px";
        document.getElementById("img2").style.display="block";
    }
    
}
function leftmove()
{
    var d = document.getElementById("d1");
    var b = document.getElementById("img2");
    if(parseInt(d.style.marginLeft)>(-600))
    {
        var bm = parseInt(b.style.marginRight)+1;
        var m = parseInt(d.style.marginLeft)-1;
        d.style.marginLeft= m+"px";
        b.style.marginRight= bm+"px";
        var t1 = window.setTimeout("leftmove()",2);
    }
    else
    {
        window.clearTimeout(t1);
        document.getElementById("img1").style.display="block";;
        document.getElementById("img2").style.display="none";
        document.getElementById("img2").style.marginRight=0+"px";
    }
    
}
</script>
自己做的
<body>
<input  id="btn" type="image" value="开始" src="POINT04.ICO" style=" width:40px; height:40px;position:absolute; left:490px; top:300px; display:block" onclick="a()"/>
<input  id="btn1" type="image" value="开始" src="POINT02.ICO" style=" width:40px; height:40px;position:absolute; right:440px; top:300px; display:none" onclick="b()"/>
<div style="width:100%; height:600px; overflow:hidden">
    <div style="width:1800px; height:600px; overflow:hidden">
        <div id="d1" style="width:900px; height:600px; background-color:#309; float:left; margin-left:-400px;"></div>
        <div id="d2" style="width:900px; height:600px; background-color:#F03; float:left; margin-right:0px;"></div>
    </div>
</div>
</body>

<script type="text/javascript">


var p=document.getElementById("btn1");
var j=document.getElementById("btn");
function a()
{
    var m=document.getElementById("d1");
    if(parseInt(m.style.marginLeft)<0)
    {
        var n=parseInt(m.style.marginLeft)+1;
        m.style.marginLeft=n+"px";
        
        var k=parseInt(j.style.left)+1;
        j.style.left=k+"px";
        
        /*if(parseInt(p.style.right)>=440)
        {
            var q=parseInt(p.style.right)-1;
            p.style.right=q+"px";
        }*/
        
        window.setTimeout("a()",1);
    }
    else <!--if(parseInt(m.style.marginLeft)==0)-->
    {
        p.style.right="440px";
        j.style.display="none";
        p.style.display="block";
    }
}

function b()
{
    var m=document.getElementById("d1");
    var p=document.getElementById("btn1");
    if(parseInt(m.style.marginLeft)>-400)
    {
        var n=parseInt(m.style.marginLeft)-1;
        m.style.marginLeft=n+"px";
        
        var q=parseInt(p.style.right)+1;
        p.style.right=q+"px";
        
        /*var h=parseInt(j.style.left)-1;
        j.style.left=h+"px";*/
        
        window.setTimeout("b()",1);
    }
    else 
    {
        j.style.left="490px";
        j.style.display="block";
        p.style.display="none";
    }
    //window.setTimeout("b()",1);
}



</script>

 

eg10、省市级三级联动

  1 <body>
  2 
  3 <!--<select id="pro" onchange="a()">
  4     <option selected="selected">省份</option>
  5     <option class="pro">河北省</option>
  6     <option class="pro">山东省</option>
  7 </select>
  8 <select id="city" onchange="b()">
  9     <option id="city1" selected="selected">地级市</option>
 10     <option class="hb" style="display:none">石家庄市</option>
 11     <option class="hb" style="display:none">唐山市</option>
 12     <option class="sd" style="display:none">淄博市</option>
 13     <option class="sd" style="display:none">泰安市</option>
 14 </select>
 15 <select id="qu">
 16     <option id="qu1" selected="selected">市、区、县</option>
 17     
 18     <option class="sjz" style="display:none">长安区</option>
 19     <option class="sjz" style="display:none">桥西区</option>
 20     <option class="sjz" style="display:none">新华区</option>
 21     <option class="sjz" style="display:none">桥东区</option>
 22     
 23     <option class="zb" style="display:none">张店区</option>
 24     <option class="zb" style="display:none">淄川区</option>
 25     <option class="zb" style="display:none">临淄区</option>
 26     <option class="zb" style="display:none">博山区</option>
 27     <option class="zb" style="display:none">周村区</option>
 28     <option class="zb" style="display:none">高新区</option>
 29     <option class="zb" style="display:none">高青县</option>
 30     <option class="zb" style="display:none">桓台县</option>
 31     <option class="zb" style="display:none">沂源县</option>
 32     
 33     <option class="ta" style="display:none">泰山区</option>
 34     <option class="ta" style="display:none">岱岳区</option>
 35     <option class="ta" style="display:none">新泰市</option>
 36     <option class="ta" style="display:none">肥城市</option>
 37     <option class="ta" style="display:none">宁阳县</option>
 38     <option class="ta" style="display:none">东平县</option>
 39 </select>-->
 40 
 41 
 42 
 43 <select id="pro" onchange="pro()">
 44     <option selected="selected">省份</option>
 45     <option value="hb">河北省</option>
 46     <option value="sd">山东省</option>
 47 </select>
 48 <select id="city" onchange="city()">
 49     <option id="city1" selected="selected">地级市</option>
 50 </select>
 51 <select id="qu">
 52     <option id="qu1" selected="selected">市、区、县</option>
 53 </select>
 54 
 55 
 56 
 57 
 58 </body>
 59 
 60 
 61 <script type="text/javascript">
 62 
 63 //改变省份,关联 地级市 
 64 function pro()
 65 {
 66     qu_huifu();
 67     var a=document.getElementById("pro");
 68     var b=document.getElementById("city");
 69     var city1="";
 70     if(a.value=="hb")
 71     {
 72         //alert(1);
 73         city1="<option value='sjz'>石家庄市</option> <option value='ts'>唐山市</option>";
 74     }
 75     else if(a.value=="sd")
 76     {
 77         //alert(1);
 78         city1="<option value='zb'>淄博市</option><option value='ta'>泰安市</option>";
 79     }
 80     b.innerHTML=city1;
 81 }
 82 
 83 //改变地级市,关联 市区县 
 84 function city()
 85 {
 86     var c=document.getElementById("city");
 87     var d=document.getElementById("qu");
 88     var qu="";
 89     if(c.value=="sjz")
 90     {
 91         qu="<option value='caq'>长安区</option><option value='qxq'>桥西区</option><option value='xhq'>新华区</option><option value='qdq'>桥东区</option>";
 92     }
 93     else if(c.value=="zb")
 94     {e
 95         qu="<option value='zdq'>张店区</option><option value='zcq'>淄川区</option><option value='lzq'>临淄区</option><option value='bsq'>博山区</option><option value='zcq'>周村区</option><option value='gxq'>高新区</option><option value='gqx'>高青县</option><option value='htx'>桓台县</option>option value='yyx'>沂源县</option>";
 96     }
 97     else if(c.value=="ta")
 98     {
 99         qu="<option value='taq'>泰山区</option><option value='dyq'>岱岳区</option><option value='xts'>新泰市</option><option value='fcs'>肥城市</option><option value='nyx'>宁阳县</option><option value='dpx'>东平县</option>";
100     }
101     else
102     {
103         qu="<option id='qu1' selected='selected'>市、区、县</option>";
104     }
105     d.innerHTML=qu;
106 }
107 
108 function qu_huifu()
109 {
110     document.getElementById("qu").innerHTML="<option value='moren' selected='selected'>市、区、县</option>";
111 }
112 
113 
114 </script>
115 
116 
117 
118 <!--
119 <script type="text/javascript">
120 
121 
122 function a()
123 {
124     //huifu_city();
125     //huifu_qu();
126     //每当省份发生变化时,区县市选项应该恢复默认值。
127     document.getElementById("qu1").selected=true;
128     
129     var    pro=document.getElementsByClassName("pro");
130     if(pro[0].selected)
131     {
132         var city=document.getElementsByClassName("hb");
133         city[0].selected=true;
134         for(var i=0;i<qu.length;i++)
135         {
136             city[i].style.display="block";
137         }
138     }
139     else if(pro[1].selected)
140     {
141         var city=document.getElementsByClassName("sd");
142         city[0].selected=true;
143         for(var i=0;i<qu.length;i++)
144         {
145             city[i].style.display="block";
146         }
147     }
148 }
149 
150 
151 function b()
152 {
153     huifu_qu();
154     var    city=document.getElementsByClassName("sd");
155     if(city[0].selected)
156     {
157         //huifu_qu();
158         var qu=document.getElementsByClassName("zb");
159         qu[0].selected=true;
160         for(var i=0;i<qu.length;i++)
161         {
162             qu[i].style.display="block";
163         }
164     }
165     
166     if(city[1].selected)
167     {
168         //huifu_qu();
169         var qu=document.getElementsByClassName("ta");
170         qu[0].selected=true;
171         for(var i=0;i<qu.length;i++)
172         {
173             qu[i].style.display="block";
174         }
175     }
176     var    city3=document.getElementsByClassName("hb");
177     if(city3[0].selected)
178     {
179         var qu=document.getElementsByClassName("sjz");
180         qu[0].selected=true;
181         for(var i=0;i<qu.length;i++)
182         {
183             qu[i].style.display="block";
184         }
185     }
186 }
187 
188 //区县市恢复默认不显示
189 function huifu_qu()
190 {
191     //document.getElementsById("qu1").selected=true;
192     var qu1=document.getElementsByClassName("zb");
193     for(var i=0;i<qu1.length;i++)
194     {
195         qu1[i].style.display="none";
196     }
197     var qu2=document.getElementsByClassName("ta");
198     for(var i=0;i<qu2.length;i++)
199     {
200         qu2[i].style.display="none";
201     }
202     var qu3=document.getElementsByClassName("sjz");
203     for(var i=0;i<qu3.length;i++)
204     {
205         qu3[i].style.display="none";
206     }
207     
208 }
209 //城市 恢复默认不显示
210 function huifu_city()
211 {
212     //document.getElementsById("city1").selected=true;
213     var city1=document.getElementsByClassName("hb");
214     for(var i=0;i<city1.length;i++)
215     {
216         city1[i].style.display="none";
217     }
218 
219     var city2=document.getElementsByClassName("sd");
220     for(var i=0;i<city2.length;i++)
221     {
222         city2[i].style.display="none";
223     }
224 
225 }
226 
227 //if(document.getElementById("city").op)
228 
229 //(document.getElementsByClassName("zb").length);
230 
231 
232 
233 </script>-->
234 
235 方式二 注意在添加<option>标签时,也可用下面的方法:
236 var p1 = document.createElement("option");
237 p1.innerHTML="山东";
238 var p2 = document.createElement("option");
239 p2.innerHTML="河北";
240 
241 var s = document.getElementById("select");
242 
243 s.appendChild(p1);
244 s.appendChild(p2);
View Code

 

 

 

 

 

 

posted @ 2015-08-06 21:26  其实哥很宅  阅读(500)  评论(0编辑  收藏  举报