我从我的应用程序互联网数据中获取在重启设备后我使用了多少互联网数据。我想在触摸按钮后清除这些数据。我怎样才能做到？我用swift。此代码帮助我获取互联网数据。此代码来自TrackingiPhoneDataUsage:funcgetDataUsage()->(wifi:(sent:UInt32,received:UInt32),wwan:(sent:UInt32,received:UInt32)){varinterfaceAddresses:UnsafeMutablePointer=nilvarnetworkData:UnsafeMutablePointer=nilvarreturnTu