麻烦老师看看，这是什么问题
来源：7-6 编程练习
慕无忌6063789
2020-02-11 04:04:56
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript" src="index.js"></script>
</head>
<body onload="address()">
<form>
省份：
<!-- 请在此补充代码 -->
<select name="shengfen" id="shengfen"></select>
市/区：
<!-- 请在此补充代码 -->
<select name="shiqu" id="shiqu"></select>
</form>
</body>
</html>
function address(){
/*请在此补充代码*/
var shengfen=document.getElementById("shengfen");
var shiqu=document.getElementById("shiqu");
var sf=["北京市","天津市","河北省","河南省"];
var sq=["朝阳区","西域区","石家庄","西青区","武清区","郑州市","开封市"];
selectionAdd(shengfen,sf,sf);
selectionAdd(shiqum,sq,sq);
}
function selectAdd(obj,name,value){
/*请在此补充代码*/
for(var i=0;i<=name.length;i++){
obj.options.add(new Option(name[i],name[i]))
}
}
1回答
-
guly
2020-02-11
你好，1、缺少包含标签<script type="text/javascript"></script>
2、变量有误
建议参考代码如下：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Document</title> <script type="text/javascript" src="index.js"></script> </head> <body onload="address()"> <form> 省份： <!-- 请在此补充代码 --> <select name="shengfen" id="shengfen"></select> 市/区： <!-- 请在此补充代码 --> <select name="shiqu" id="shiqu"></select> </form> </body> </html> <script type="text/javascript"> function address(){ /*请在此补充代码*/ var shengfen=document.getElementById("shengfen"); var shiqu=document.getElementById("shiqu"); var sf=["北京市","天津市","河北省","河南省"]; var sq=["朝阳区","西域区","石家庄","西青区","武清区","郑州市","开封市"]; selectionAdd(shengfen,sf,sf); selectionAdd(shiqu,sq,sq); } function selectionAdd(obj,name,value){ /*请在此补充代码*/ for(var i=0;i<=name.length;i++){ obj.options.add(new Option(name[i],name[i])) } } </script>如果解决您的问题请采纳，祝学习愉快！
0
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