"tabBar": {
    "position": "top",
    "selectedColor": "green",
    "list": [
      {
        "pagePath": "pages/zhuye/zhuye",
        "text": "主页"
      },
      {
        "pagePath": "pages/index/index",
        "text": "推荐"
      },
      {
        "pagePath": "pages/guanzhu/guanzhu",
        "text": "关注"
      }
    ]

  }

结果并没有显示全

但如果我改为了"position": "bottom"

就会显示如下图所示