// 获取当前地地址
    async getLocation() {
      let self = this
      let result = null
      try {
        const resultLocation = await wepy.getLocation()
        result = await this.geocoder(resultLocation)
      } catch (e) {
        wx.getSetting({
          success: function (res) {
            console.log('getSetting...', res)
            let statu = res.authSetting
            if (!statu['scope.userLocation']) {
              wx.showModal({
                title: '是否授权当前位置',
                content: '需要获取您的地理位置，请确认授权，否则将无法获得优惠券',
                success: function (tip) {
                  if (tip.confirm) {
                    wx.openSetting({
                      success: function (data) {
                        console.log('openSetting...', data)
                        if (data.authSetting['scope.userLocation'] === true) {
                          wepy.showToast({
                            title: '授权成功',
                            icon: 'success',
                            duration: 1000
                          })
                          // 授权成功之后，再调用chooseLocation选择地方
                          wepy.getLocation({
                            success(res) {
                              self.geocoder(res)
                            }
                          })
                        } else {
                          // 开关关闭，提示无法拿到位置权限
                          wx.showModal({
                            title: '提示',
                            content: '无法使用定位权限',
                            confirmText: '太遗憾了',
                            showCancel: false
                          })
                        }
                      },
                      fail: function(res) {
                        console.log('openSetting.failed' + res)
                      }
                    })
                  }
                  if (tip.cancel) {
                    wx.showToast({
                      title: '定位失败',
                      icon: 'none',
                      duration: 1000
                    })
                  }
                }
              })
            } else {
              wepy.showModal({
                title: '定位服务已关闭',
                content: '请在“设置”中打开定位服务,以便精准定位获取更多优惠消息！'
              })
            }
          },
          fail: function (res) {
            console.log(res)
            wepy.showToast({
              title: '调用授权窗口失败',
              icon: 'success',
              duration: 1000
            })
          }
        })
      }
      return result
    }