getPhoneNumber(e) {
    let msg = e.detail.errMsg;
    let that = this;
    let sessionID=wx.getStorageSync('login_session_key'),
    encryptedDataStr=e.detail.encryptedData,
    iv= e.detail.iv;
    if (msg == 'getPhoneNumber:ok') {
      wx.checkSession({
        success:function(){
          that.deciyption(sessionID,encryptedDataStr,iv);
        },
        fail:function(){
          wx.login({
            success: res => {
              console.log(res,'sessionkey过期')
              app.network.request1({
                url: 'login', 
                method: "POST",
                data: { code:res.code},
                success: function (res) {   
                  console.log(res)     
                  if (res.data.error == 0) {
                    console.log(res.data)
                    that.deciyption(res.data.session_key,encryptedDataStr,iv);
                  } else {
                    wx.showToast({
                      icon: 'none',
                      title: res.data.message,
                    })
                  }
                }
              })
            }
          })
        }
      })
    }
  },
调试基础库 2.12.1 
e.detail.encryptedData,e.detail.iv, 的值都是undefind
偶尔会是undefind  目前发现在苹果手机上