1.引入 <template>startend</template>import LeaderLine from 'leader-line-vue' const startRef = ref<any>() const endRef = ref<any>() const line = ref<any>()//后边清空线条使用 line.value = LeaderLine.setLine(startRef.value, endRef.value) //页面卸载前清除LeaderLine实例 onBeforeUnmount((...