如此一来，就不需考虑数据库建立时的名称重复问题. 目前最广泛应用的UUID，即是微软的Microsoft's Globally Unique Identifiers (GUIDs)，而其他重要 ... ... <看更多>

change uuid. Watch later. Share. Copy link. Info. Shopping. Tap to unmute. If playback doesn't begin shortly ... ... <看更多>

Did you change the deployment target from simulator to the device? If that doesn't work, I sometimes have to download the provisioning profile ... ... <看更多>