VUE3+elementPlus的el-tree添加右键菜单_el-tree右键显示新增

            <el-tree
            ref="treeRef"
            :data="listData"
            :props="defaultProps"
            @node-click="handleNodeClick"
            @node-contextmenu="rightClick"
          />
            <div class="rightMenu" v-show="showRightMenu">
      <ul>
        <li @click="addMenu">
          <el-icon>
            <CirclePlus />
          </el-icon>新建同级
        </li>
        <li @click="addSonMenu">
          <el-icon>
            <CirclePlus />
          </el-icon>新建子级
        </li>
        <li @click="delMenu">
          <el-icon>
            <CircleClose />
          </el-icon>删除功能
        </li>
      </ul>
    </div>
<script>
 
const showRightMenu = ref(false)
const rightClick = (event, data, node, json) => {
  showRightMenu.value = false
  let menu = document.querySelector('.rightMenu')
  menu.style.left = event.clientX + 'px'
  menu.style.top = event.clientY + 'px'
  showRightMenu.value = true
  document.addEventListener('click', show)
}
const show = () => {
  showRightMenu.value = false
}
 
</script>
 
<style scoped>
//样式可以自己定义
.rightMenu {
  position: fixed;
  z-index: 99999999;
  cursor: pointer;
  border: 1px solid #eee;
  box-shadow: 0 0.5em 1em 2px rgba(0, 0, 0, 0.1);
  border-radius: 6px;
  color: #1a1a1a;
}
.rightMenu ul {
  list-style: none;
  margin: 0;
  padding: 0;
  border-radius: 6px;
}
.rightMenu ul li {
  padding: 6px 10px;
  background: #fff;
  border-bottom: 1px solid #000;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-around;
}
.rightMenu ul li:last-child {
  border: none;
}
.rightMenu ul li:hover {
  transition: all 1s;
  background: #92c9f6;
}
</style>