//事件处理函数
  bindViewTap() {
    wx.navigateTo({
      url: '../logs/logs',
    })
  },

"tabBar": {
    "backgroundColor": "black",
    "color":"white",
    "list": [
      {
        "pagePath": "pages/index/index",
        "text": "首页"
      },
      {
        "pagePath": "pages/logs/logs",
        "text": "日志"
      }
    ]
  }

  bindViewTap() {
    wx.switchTab({
      url: '../logs/logs',
    })
  },

wx.redirectTo 

wx.navigateTo//保留当前页面跳转到（最多5个）,避免使用多层及交互或使用 wx.navigateTo

wx.switchTab //wx.redirectTo和wx.navigateTo不允许跳转到tabbar页面