把json数据赋值给下拉框，下拉框值不能重复
- JScript code
<body onload="fun()"><script>function fun() var sel=document.getElementById("sel"); var json={"list":[{"type":"1","name":"电信"},{"type":"1","name":"电信"},{"type":"2","name":"联通"}]}; sel.add(new Option("请选择","")); for(var i=0;i<json.list.length;i++){ sel.add(new Option(json.list[i].name,json.list[i].type)); }}</script><select id="sel" name="sel"></select></body>[解决办法]
fun() 后面少了一个大括号：
<body onload="fun()">
<script>
function fun() {
var sel=document.getElementById("sel");
var json={"list":[{"type":"1","name":"电信"},{"type":"1","name":"电信"},{"type":"2","name":"联通"}]};
sel.add(new Option("请选择",""));
for(var i=0;i<json.list.length;i++){
sel.add(new Option(json.list[i].name,json.list[i].type));
}
}
</script>
<select id="sel" name="sel"></select>
</body>
[解决办法]
[解决办法]
- HTML code
function fun(){ var sel=document.getElementById("sel"); var json={"list":[{"type":"1","name":"电信"},{"type":"1","name":"电信"},{"type":"2","name":"联通"}]}; sel.add(new Option("请选择","")); var theforever_csdn='|'; for(var i=0;i<json.list.length;i++){ if(theforever_csdn.indexOf('|'+json.list[i].name+'|')){ theforever_csdn+=json.list[i].name+'|'; sel.add(new Option(json.list[i].name,json.list[i].type)); } }}