angular.js - angularjs ng-class directive changes the class attribute clicked by ng-click and fails

Question

Front end:

<p ng-app="ngApp" ng-controller="productPackagePullController">
                <dl class="pd-dsc clearfix" id="pd-dsc1" style='margin-top:8px;'>
                <dt class="left">{{sdata.spd1name}}: </dt>
                <p class='pd-spec-dets clearfix'>
                <p class='pd-spec-sb enable' 
                ng-class="{'selected':s._hover}" 
                ng-repeat="s in data"
                ng-bind="s.det_name1"
                ng-click="clickStatus(s)">
                </p>
                </p>
                </dl>
            </p>
           

js:

$scope.clickStatus = function(prop){
    prop._hover = !prop._hover;
    var text = prop.det_name1;
}

css:

<style type="text/css">
    .pd-spec-sb {
    font-size: 12px;
    line-height: initial;
    display: inline-block;
    padding: 4px 6px;
    border: 1px solid #ccc;
    color: #aaa;
    margin-right: 5px;
    margin-bottom: 5px;
    float: left;
}

.pd-spec-sb.enable {
    color: #666;
    border: 1px solid #666;
}

.pd-spec-sb.hover {
    color: #ff9000;
    border: 1px solid #ff9000;
}
</style>

After clicking, the hover attribute will not be added to p. The desired effect is that clicking p will add the hover attribute to the p. I don’t know where I made a mistake. I just learned angularjs, please give me an answer

Answer 1

I put your code on jsFiddle and made some changes to meet your requirements. If you don’t see the effect, you have to jump over the wall.
Demo,

Answer 2

Replace selected in ng-class with hover
Read the document carefully