实现一个像这样的五星打分

        export default {        data() {            return {                score: 0,                content: '',                star: [0,1,2,3,4],                s_l: -1,                old_index: null,            }        },        computed: {            ...mapState(['userInfo'])        },        methods: {            getStar(index)  {                if (this.old_index == index) {                    this.s_l = index - 1;                    this.score--;                    this.old_index--;                    return                }                this.s_l = index;                this.score = index+1;                this.old_index = index;            }        }      }