rowHandle dropdown 如果没有子键是否直接隐藏？

[levin950825]

 rowHandle: {
        show: true,
        width: 170,
        dropdown: {
          // 操作列折叠
          atLeast: 3,
          more: {
            size: 'small',
            text: '',
            icon: 'gg:more-o',
            // show:
            //   hasPermission('role:management:distribution_user') ||
            //   hasPermission('role:management:distribution_res'),
          },
        },
        buttons: {
          distribution: {
            text: '分配用户',
            size: 'small',
            order: 4,
            show: hasPermission('role:management:distribution_user'),
            async click(context) {
              await distribution.userModal(context.record.id);
            },
          },
          resource: {
            text: '分配权限',
            size: 'small',
            order: 5,
            show: hasPermission('role:management:distribution_res'),
            async click(context) {
              await distribution.resourceModal(context.record.id);
            },
          },
        },
      },