jQuery post提交数据

###html部分

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//storeid这个下拉框类添加一个change的动作
$('#storeid').on("change", function () {
showUseDeviceType($(this).val()); //通过$(this).val()取得storeid的值
});
//定义showUseDeviceType
function showUseDeviceType(flag) {
var id = "{$id}";
if (id == "") {
$.post("{php echo webUrl('share/tationedshoppost')}", {"storeid": flag, "op": "getdevicetype"}, function (data) {
$("#device_type_id").html('<option value="0">--空--</option>');
if (data.status == "1") {
$.each(data.result, function (i, o) {
if (o != undefined && o.id > 0) {
$("#device_type_id").append("<option value='" + o.id + "'>" + o.device_name + "</option>");
}
});
}
}, 'json');
}else {
$.post("{php echo webUrl('share/tationedshoppost')}", {"storeid": flag, "op": "getdevicetype","model_number":"{$item['model_number']}"}, function (data) {
$("#device_type_id").html('<option value="0">--空--</option>');
if (data.status == "1") {
$.each(data.result, function (i, o) {
if (o != undefined && o.id > 0) {
var option_text = o.device_name;
if(o.storeid == 0){
option_text += " --平台";
}
$("#device_type_id").append("<option value='" + o.id + "'>" + option_text + "</option>");
}
});
$("#device_type_id").find("option[value='{$item['device_type_id']}']").attr("selected",true);
}
}, 'json');
}
}
showUseDeviceType($('#storeid').val());