Sticky 组件

1.10.0 新增

吸附组件，当滚动位置到达目标元素位置后，目标元素就会自动吸附。

示例

• 综合使用 - Scroll

  <cube-sticky :pos="scrollY">
    <cube-scroll
      :scroll-events="scrollEvents"
      @scroll="scrollHandler">
      <ul>
        <li>title</li>
      </ul>
      <cube-sticky-ele ele-key="11">
        <ul class="sticky-header">
          <li>111</li>
        </ul>
      </cube-sticky-ele>
      <ul>
        <li v-for="item in items">{{item}}</li>
      </ul>
      <cube-sticky-ele ele-key="22">
        <ul class="sticky-header">
          <li>222</li>
          <li>222</li>
        </ul>
      </cube-sticky-ele>
      <ul>
        <li v-for="item in items2">{{item}}</li>
      </ul>
      <cube-sticky-ele ele-key="33">
        <ul class="sticky-header">
          <li>333</li>
        </ul>
      </cube-sticky-ele>
      <ul>
        <li v-for="item in items3">{{item}}</li>
      </ul>
    </cube-scroll>
    <template slot="fixed" slot-scope="props">
      <ul class="sticky-header">
        <li>{{props.current}}</li>
      </ul>
    </template>
  </cube-sticky>
  

  const _data = [
    '