function loadList() {
  this.listLoading = true;

  const params = {
    orgId: this.form.orgId,
  };

  API_EMP.selectRegisterVirt(params)
    .then((res) => {
      if (res.data?.length) {
        const getRecord = (data, level) => {
          const children = data.childList || [];
          const current = {
            level,
            value: data.id,
            label: data.nameinfo,
            children,
          };

          if (children?.length) {
            current.children = children.map((v) => getRecord(v, level + 1));
          }

          return current;
        };

        const dataSource = res.data.map((item) => getRecord(item, 0));
        this.list = dataSource;
      }
    })
    .finally(() => {
      this.listLoading = false;
    });
}