获取不同型号手机小程序导航栏的高度（uniapp）

uni.getSystemInfo({
      success: function(e) {
          Vue.prototype.StatusBar = e.statusBarHeight;
          let custom = wx.getMenuButtonBoundingClientRect();
          Vue.prototype.Custom = custom;
          Vue.prototype.CustomBar = custom.bottom + custom.top - e.statusBarHeight;
    }
});