解決方法：自寫一個展示框，判斷是否授權，未授權的情況下彈出授權框，授權后不會彈出
代碼：
彈出框頁面view：
<view wx:if="{{!canIUse&&showShouquan}}" style='height:100vh;width:100vw;opacity:.5;position:absolute;top:0'></view>
<view wx:if="{{!canIUse&&showShouquan}}" style='color:#333333;position:absolute;top:340rpx;width:70vw;left:9vw;padding:6vw'>
<view style='font-size:42rpx'>微信授權</view>
<view style='font-size:30rpx;font-weight:bold;text-align:center;padding:20rpx;border-bottom:1px solid #e9e9e9'>....網絡科技申請獲取以下權限：</view>
<view style='font-size:26rpx;text-align:center;margin:30rpx 30rpx 70rpx 30rpx'><text>獲得你的公開信息（昵稱、頭像等）</text></view>
<view style='font-size:28rpx;float:right;margin-top:10rpx'>
<text wx:if="{{!canIUse&&showShouquan}}" bindtap='hidthis' style='color:#999999;margin-left:60rpx;height:60rpx;line-height:60rpx;font-size:30rpx;border:none;position:absolute;top:300rpx;left:300rpx'>拒絕</text>
<button wx:if="{{!canIUse}}" open-type="getUserInfo" bindgetuserinfo="bindGetUserInfo" style='color:#31B531;margin-left:60rpx;height:60rpx;line-height:60rpx;font-size:30rpx;border:none;position:absolute;top:300rpx;left:400rpx'>允許</button>
</view>
<!-- userInfo:getApp().globalData.userInfo -->
</view>
js：
data: {
canIUse: wx.canIUse('button.open-type.getUserInfo'),
showShouquan:true
},
onLoad: function (options) {
// 查看是否授權
wx.getSetting({
success: function (res) {
console.log(res.authSetting['scope.userInfo'])
if (res.authSetting['scope.userInfo']) {
// 已經授權，可以直接調用 getUserInfo 獲取頭像昵稱
wx.getUserInfo({
success: function (res) {
console.log(res)
getApp().globalData.userInfo = res.userInfo //將授權信息傳遞給全局變量
}
})
}
}
})
},
bindGetUserInfo: function (e) {
getApp().globalData.userInfo = e.detail.userInfo //將授權信息傳遞給全局變量
console.log(getApp().globalData.userInfo)
},