如题， 只有第一次跳出授权界面，拒绝之后。 在也使用不了微信登录了。

回复第1楼微信官方平台上找不到授权的地方？

回复第2楼   找了这样的一个提示，可以通过这个去再次打开。 你的demo中没有对这样的做处理。
// 显示提示弹窗
                    wx.showModal({
                      title: '提示标题',
                      content: '提示内容',
                      success: function (res) {
                        if (res.confirm) {
                          console.log('用户点击确定')
                        } else if (res.cancel) {
                          console.log('用户点击cancel')
                          wx.openSetting({
                            success: function (data) {
                              if (data) {
                                if (data.authSetting["scope.userInfo"] == true) {
                                  //loginStatus = true;
                                  wx.getUserInfo({
                                    withCredentials: false,
                                    success: function (data) {
                                      console.info("3成功获取用户返回数据");
                                      console.info(data.userInfo);
                                    },
                                    fail: function () {
                                      console.info("3授权失败返回数据");
                                    } 
                                  });
                                }
                              } 
                            },
                            fail: function () {
                              console.info("设置失败返回数据");
                            } 
                          });
                        }
                      }
                    });