app.directive('myStars', function () {

    return {

        require : '?ngModel', // ?ngModel

        restrict : 'E',

        replace : true,

        templateUrl : 'ui/templateUrl/myStars.html',

        scope: {ngModel : '='},

        link: function ($scope, element, attrs, ngModel) {

            $scope.myStars = [1,2,3,4,5];

            $scope.clickCnt = 1;

            $scope.$watch('ngModel', function(newValue) {

                var dataList = newValue;

                console.log(dataList);

                if(!dataList) return;

                $scope.myStar = dataList;

                $scope.clickCnt = dataList;

            })

            $scope.stars = function (myStar) {

                $scope.clickCnt = myStar;

                ngModel.$setViewValue(myStar);

            }

            $scope.mouseoverStar = function (myStar) {

                $scope.hoverCnt = myStar;

            }

            $scope.mouseleaveStar = function (myStar) {

                $scope.hoverCnt = 1;

            }

        }

    }

});

<div>

    <meta charset="utf-8">

    <ul class="my-stars-list">

        <li class="my-stars-items" ng-mouseover="mouseoverStar(myStar)" ng-mouseleave="mouseleaveStar(maStar)" ng-click="stars(myStar)" ng-class="{myStarsSel: clickCnt > $index , myStarHover: hoverCnt > $index }" ng-repeat="myStar in myStars track by $index" title="{{ myStar }}星">{{ myStar }}</li>

    </ul>

</div>
html中的使用如下:

<my-stars ng-model="drLevel"></my-stars>

.my-stars-list{

    height: 34px;

    line-height: 34px;

    display: -webkit-box;

    display: -webkit-flex;

    display: flex;

}

.my-stars-items{

    cursor:pointer;

    font-size:;

    width: 34px;

    line-height: 34px;

    height:34px;

    background-image: url(../images/star-off-big.png);

    background-repeat: no-repeat;

    background-position: center center;

}

.myStarHover.my-stars-items{

    background-image: url(../images/star-on-big.png);

    background-repeat: no-repeat;

    background-position: center center;

}

.myStarsSel.my-stars-items{

    background-image: url(../images/star-on-big.png);

    background-repeat: no-repeat;

    background-position: center center;

}

var level = $scope.drLevel;