//授權，獲取授權，看是否擁有某種權限
wx.getSetting({
success(res) {
if
(!res.authSetting['scope.writePhotosAlbum']) {
wx.authorize({
scope:
'scope.writePhotosAlbum',
success() {
console.log('授權成功')
},fail(){
console.log("授權失敗")
}
})
}
}
})
