jQuery实现星星打分组件

 <div class="container">小主的评价：</div>
  <span></span>

<style>
    .star {
      font-size: 20px;
      color: gold;
      cursor: pointer;
    }

    .container {
      display: inline-block;
      text-align: center;
    }
</style>

<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
 <script>
    $(function () {
      let count = 5
      let score = 3

      for (let i = 0; i < count; i++) {
        let star = $("<i/>").addClass("iconfont").addClass("star")
        if (i < score) star.addClass("icon-xingxing")
        else star.addClass("icon-xingxing1")

        $(".container").append(star)
      }

      $(".star").mouseenter(function () {
        let index = $(this).index()

        $(".star").each(function (i) {
          if (i <= index)
            $(this).addClass("icon-xingxing").removeClass("icon-xingxing1")
          else
            $(this).addClass("icon-xingxing1").removeClass("icon-xingxing")
        })
      })

      $(".star").mouseleave(function () {
        $(".star").each(function (i) {
          if (i < score)
            $(this).addClass("icon-xingxing").removeClass("icon-xingxing1")
          else
            $(this).addClass("icon-xingxing1").removeClass("icon-xingxing")
        })
      })

      $(".star").click(function () {
        score = $(this).index() + 1
        $("span").html(`${score}分`)

      })
      $("span").html(`${score}分`)

    })
</script>