abstract：<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html> <head> <title></title> <meta name="GENERATOR" content="M
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title></title>
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta name="Originator" content="Microsoft Visual Studio .NET 7.1">
<script language="javascript" >
function CLASS_LIANDONG_YAO(array)
{
this.array=array;
this.indexName='';
this.obj='';
this.subSelectChange=function(selectName1,selectName2)
{
var obj1=document.all[selectName1];
var obj2=document.all[selectName2];
var objName=this.toString();
var me=this;
obj1.onchange=function()
{
me.optionChange(this.options[this.selectedIndex].value,obj2.id)
}
}
this.firstSelectChange=function(indexName,selectName)
{
this.obj=document.all[selectName];
this.indexName=indexName;
this.optionChange(this.indexName,this.obj.id)
}
this.optionChange=function (indexName,selectName)
{
var obj1=document.all[selectName];
var me=this;
obj1.length=0;
obj1.options[0]=new Option("请选择",'');
for(var i=0;i<this.array.length;i++)
{
if(this.array[i][1]==indexName)
{
//alert(this.array[i][1]+" "+indexName);
obj1.options[obj1.length]=new Option(this.array[i][2],this.array[i][0]);
}
}
}
}
</script>
</head>
<body>
<form name="form1" method="post">
<SELECT ID="s1" NAME="s1" >
<OPTION selected></OPTION>
</SELECT>
<SELECT ID="s2" NAME="s2" >
<OPTION selected></OPTION>
</SELECT>
<SELECT ID="s3" NAME="s3">
<OPTION selected></OPTION>
</SELECT>
<br>
<br>
<OPTION selected></OPTION>
</SELECT>
</form>
</body>
<script language="javascript">
var array=new Array();
array[0]=new Array("华南地区","根目录","华南地区");
array[1]=new Array("华北地区","根目录","华北地区");
array[2]=new Array("上海","华南地区","上海");
array[3]=new Array("广东","华南地区","广东");
array[4]=new Array("徐家汇","上海","徐家汇");
array[5]=new Array("普托","上海","普托");
array[6]=new Array("广州","广东","广州");
array[7]=new Array("湛江","广东","湛江");
var liandong=new CLASS_LIANDONG_YAO(array)
liandong.firstSelectChange("根目录","s1");
liandong.subSelectChange("s1","s2");
liandong.subSelectChange("s2","s3");
var liandong2=new CLASS_LIANDONG_YAO(array2);
liandong2.firstSelectChange("根目录","x1");
liandong2.subSelectChange("x1","x2")
liandong2.subSelectChange("x2","x3")
liandong2.subSelectChange("x3","x4")
liandong2.subSelectChange("x4","x5")
</script>
</html></font>
Correcting teacher：天蓬老师Correction time：2019-04-10 10:20:48
Teacher's summary：content="Microsoft FrontPage 4.0", 看到了这个老古董 , 这段代码有意思