为什么后面的选择选择不了
<script type="text/javascript" src="jquery-3.2.1.min.js"></script>
<script type="text/javascript">
$(function(){
function objInit(obj){
return $(obj).html("<option>请选择</option>");
}
var aa={
厂商1:{品牌1:"型号1_1_0,型号1_1_1",
品牌1_2:"型号1_2_1,型号1_2_2"},
厂商2:{品牌2:"型号2_1_0,型号2_1_1",
品牌2_2:"型号2_2_1,型号2_2_2"},
厂商3:{品牌3:"型号3_1_0,型号3_1_1",
品牌3_2:"型号3_2_1,型号3_2_2"},
};
$.each(aa,function(pF){
$("#selF").append("<option>"+pF+"</option>");
})
$("#selF").change(function(){
objInit("#selT");
objInit("#selC");
$.each(aa,function(pF,pS){
if($("#selF option:selected").text()==pF){
$.each(pS,function(pT,pC){
$("#selT").append("<option">+pT+"</option>");
});
$("#selT").change(function(){
objInit("#selC");
$.each(pS,function(pT,pC){
if($("#selT option:selected").text()==pT){
$.each(pC.split(","),function(){
$("#selC").append("<option>"+this+"<option>");
})
}
})
})
}
})
})
$("#Btn1").click(function(){
var b="你选择的厂商:";
b+=$("#selF option:selected").text()
b+="你选择的品牌:";
b+=$("#selT option:selected").text()
b+="你选择的类型:"
b+=$("#selC option:selected").text()
$("#divTip0").show().html(b);
})
})
</script>
<div class="clsInit">
厂商:<select id="selF"><option>请选择</option></select>
品牌:<select id="selT"><option>请选择</option></select>
型号:<select id="selC"><option>请选择</option></select>
<input type="button" value="查询" class="btn" id="Btn1">
</div>
<div class="clsInit" id="divTip0"></div>
