iOS10 以上蓝牙的回连出问题了！设备在关机、手机蓝牙关闭后再开启，会调用 retrievePheripheralsArr = [self.manager retrievePeripheralsWithIdentifiers:@[[CBUUID UUIDWithString:ancsUUID]]];方法，但却不会返回数据！
以下是对上述方法的数组中数据获取：
         if (retrievePheripherals.count != 0)
            {
                for (CBPeripheral *p in retrievePheripherals)
                {
                    if ([p.identifier.UUIDString isEqualToString:ancsUUID])
                    {
                        self.myPeripheral = p;
                        [self.manager connectPeripheral:self.myPeripheral options:nil];
                        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"isANCSPeripheral"];
                        return;
                    }
                }
            }