After disabling your network connection, the icon is still present showing it as enabled, but the connection is of course dead. If you are using the Reachability class or just attempting to ping a URL to verify a connection, the simulator will respond the same way a device with disabled Wifi would, which makes testing on the simulator under these conditions pretty accurate.
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
