三级下拉菜单 (通用版)

男娘i 2022-09-23 04:52 198阅读 0赞

<SCRIPT LANGUAGE="JavaScript">
    ");
    	document.writeln("<\/script>");
    	document.writeln("<s"+"cript language=\"JavaScript\">");
    	document.writeln("");
    	document.writeln("<\/script>");
    }
    //-->
    </script>
    
    <SCRIPT LANGUAGE="JavaScript">
    
    </SCRIPT>
    
    <FORM name="HwForm">
    <HR>选择一次<br>
    <SCRIPT LANGUAGE="JavaScript">
    CreateSelect("","S_13|S_23|S_33","","请选择地区@|请选择省份@|请选择城市@",AllStr1,0);
    </SCRIPT>
    
    <HR>选择三次<br>
    <SCRIPT LANGUAGE="JavaScript">
    CreateSelect("HwForm","S_1|S_2|S_3","华北地区|山东|济宁","请选择地区@|请选择省份@|请选择城市@",AllStr1,3);
    </SCRIPT>
    
    <SCRIPT LANGUAGE="JavaScript">
    
    </SCRIPT>
    
    <HR>选择二次<br><SCRIPT LANGUAGE="JavaScript">
    CreateSelect("HwForm","S_11|S_21|S_31","笔记本|IBM|T42","请选择分类@|请选择品牌@|请选择系列@",AllStr2,2);
    </SCRIPT>
    
    
    <HR>选择二次<br><SCRIPT LANGUAGE="JavaScript">
    CreateSelect("HwForm","S_12|S_22|S_32","","请选择分类@|请选择品牌@|请选择系列@",AllStr2,1);
    </SCRIPT>
    </FORM>

HwForm是表单的名字

而S\_1|S\_2|S\_3是三个Select表单的名字，如果在js中，可以用doucment.HwForm.S\_1.value得到选中的一级的值

如果在asp中，可以用Request("S\_3")得到选中的三级值

![20160705101440017][]

[20160705101440017]: /images/20220721/ce72807a1194400b9d5356e35c759f15.png