蘋果的每個產品都有幾個類型，從iphone到ipod、ipad，而每個產品又有幾個類型，從iphone2G到iphone5，從iPod touch1到iPod touch5，從ipad1到ipad4，只有你想不到的，沒有人家做不到的。   但是在做ios開發中如何檢測這些類型呢？下邊的方法就是CSDN問答中給出的方法，原問題見：http://ask.csdn.net/questions/997   [plain] - (NSString *) platformString{       // Gets a string with the device model  6     size_t size;         sysctlbyname("hw.machine", NULL, &size, NULL, 0);         char *machine = malloc(size);         sysctlbyname("hw.machine", machine, &size, NULL, 0);         NSString *platform = [NSString stringWithCString:machine encoding:NSUTF8StringEncoding];         free(machine);        if ([platform isEqualToString:@"iPhone1,1"])    return @"iPhone 2G";       if ([platform isEqualToString:@"iPhone1,2"])    return @"iPhone 3G";       if ([platform isEqualToString:@"iPhone2,1"])    return @"iPhone 3GS";       if ([platform isEqualToString:@"iPhone3,1"])    return @"iPhone 4";       if ([platform isEqualToString:@"iPhone3,2"])    return @"iPhone 4";       if ([platform isEqualToString:@"iPhone3,3"])    return @"iPhone 4 (CDMA)";           if ([platform isEqualToString:@"iPhone4,1"])    return @"iPhone 4S";       if ([platform isEqualToString:@"iPhone5,1"])    return @"iPhone 5";       if ([platform isEqualToString:@"iPhone5,2"])    return @"iPhone 5 (GSM+CDMA)";          if ([platform isEqualToString:@"iPod1,1"])      return @"iPod Touch (1 Gen)";       if ([platform isEqualToString:@"iPod2,1"])      return @"iPod Touch (2 Gen)";       if ([platform isEqualToString:@"iPod3,1"])      return @"iPod Touch (3 Gen)";       if ([platform isEqualToString:@"iPod4,1"])      return @"iPod Touch (4 Gen)";       if ([platform isEqualToString:@"iPod5,1"])      return @"iPod Touch (5 Gen)";          if ([platform isEqualToString:@"iPad1,1"])      return @"iPad";       if ([platform isEqualToString:@"iPad1,2"])      return @"iPad 3G";       if ([platform isEqualToString:@"iPad2,1"])      return @"iPad 2 (WiFi)";       if ([platform isEqualToString:@"iPad2,2"])      return @"iPad 2";       if ([platform isEqualToString:@"iPad2,3"])      return @"iPad 2 (CDMA)";       if ([platform isEqualToString:@"iPad2,4"])      return @"iPad 2";       if ([platform isEqualToString:@"iPad2,5"])      return @"iPad Mini (WiFi)";       if ([platform isEqualToString:@"iPad2,6"])      return @"iPad Mini";       if ([platform isEqualToString:@"iPad2,7"])      return @"iPad Mini (GSM+CDMA)";       if ([platform isEqualToString:@"iPad3,1"])      return @"iPad 3 (WiFi)";       if ([platform isEqualToString:@"iPad3,2"])      return @"iPad 3 (GSM+CDMA)";       if ([platform isEqualToString:@"iPad3,3"])      return @"iPad 3";       if ([platform isEqualToString:@"iPad3,4"])      return @"iPad 4 (WiFi)";       if ([platform isEqualToString:@"iPad3,5"])      return @"iPad 4";       if ([platform isEqualToString:@"iPad3,6"])      return @"iPad 4 (GSM+CDMA)";          if ([platform isEqualToString:@"i386"])         return @"Simulator";       if ([platform isEqualToString:@"x86_64"])       return @"Simulator";       return platform;   }