实现elemenu-ui中el-tabs的hover切换效果

this.$nextTick(() => {
      this.$refs.navTabs.$refs.nav.$nextTick(() => {
        var target = document.getElementsByClassName("el-tabs__item");
        for (let i = 0; i < target.length; i++) {
          target[i].addEventListener("mouseover", () => {
            this.activeName = target[i].getAttribute('id').split('-')[1]
            this.getFundList(this.activeName)
          });
        }
      });
    });