微信小程序弹出用户授权弹窗，微信小程序引导用户授权，获取位置经纬度

 //校验位置权限是否打开
checkLocation() {  let that = this;  //选择位置，需要用户授权
 wx.getSetting({
  success(res) {    if (!res.authSetting['scope.userLocation']) {
    wx.authorize({      scope: 'scope.userLocation',
     success() {
      wx.showToast({ //这里提示失败原因
       title: '授权成功！',        duration: 1500
      })
     },
     fail() {
      that.showSettingToast('需要授权位置信息');
     }
    })
   }
  }
 })
},

 // 打开权限设置页提示框
showSettingToast: function (e) {
 wx.showModal({   title: '提示！',   confirmText: '去设置',   showCancel: false,   content: e,   success: function (res) {    if (res.confirm) {
    wx.navigateTo({      url: '../setting/setting',
    })
   }
  }
 })
},

//index.jsPage({
getLocation() {  this.checkLocation();  let that = this;
 wx.chooseLocation({   success: function(res) {    var latitude = res.latitude    var longitude = res.longitude;
   that.setData({     address: "经纬度：" + longitude + ", " + latitude,
   })
  }
 });
}, //校验位置权限是否打开
checkLocation() {  let that = this;  //选择位置，需要用户授权
 wx.getSetting({
  success(res) {    if (!res.authSetting['scope.userLocation']) {
    wx.authorize({      scope: 'scope.userLocation',
     success() {
      wx.showToast({ //这里提示失败原因
       title: '授权成功！',        duration: 1500
      })
     },
     fail() {
      that.showSettingToast('需要授权位置信息');
     }
    })
   }
  }
 })
}, // 打开权限设置页提示框
showSettingToast: function (e) {
 wx.showModal({   title: '提示！',   confirmText: '去设置',   showCancel: false,   content: e,   success: function (res) {    if (res.confirm) {
    wx.navigateTo({      url: '../setting/setting',
    })
   }
  }
 })
},
})