问CBCentralManager未连接

EN

func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {

        if let device = (advertisementData as NSDictionary).object(forKey: CBAdvertisementDataLocalNameKey) as? String {
            print(device)
            if device.contains("BODY") {
                self.connectPeripheral = peripheral
                self.connectPeripheral.delegate = self
                self.manager.connect(connectPeripheral, options: nil)
               self.manager.stopScan()
            }
        }
    }

func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
        peripheral.delegate = self
        peripheral.discoverServices(nil)
    } 



func centralManager(_ central: CBCentralManager, didFailToConnect peripheral: CBPeripheral, error: Error?) {
    //NSLog("Error %@", error.debugDescription)
    print(error.debugDescription)
}