永***：
我是这样写的：
// 检测用户是否拒绝了授权
ifGetUser: function (callback) {
wx.getSetting ? wx.getSetting({
success: settings => {
var can = settings.authSetting['scope.userInfo']
this.data.noUser = can
console.log('是否已授权', can)
if (!this.data.noUser) {
wx.hideLoading();
wx.showModal({
content: '拒绝了授权，是否重新开启',
confirmText: '前往开启',
showCancel: false,
success: res => {
wx.openSetting({
success: (res) => { }
});
},
});
return;
} else {
callback && callback(true);
}
}
}) : wx.showModal({
content: '您的微信小程序版本太低，请更新微信',
showCancel: false
});
},

然后这样使用：
// 请求用户授权获得信息
getInfo: function (callbcak) {
wx.getUserInfo({
lang: 'zh_CN',
withCredentials: true,
complete: res => {
this.ifGetUser(can => { // 判断是否已授权
console.log('用户信息', res.userInfo)
this.data.userInfo = res.userInfo
callbcak && callbcak(res)
})
}
})
},