They are interchangeable. · Possible duplicate of Open/switch on the air-conditioner when we are home Also Turn on vs Switch on, and “Turn out ... ... <看更多>

... <看更多>

Here's an example - When the isMale switch is turned on, turn off the isFemale switch. - (IBAction)isMale:(id)sender { if ([sender isOn]) { // ... ... <看更多>