我来自c++/c#/java阵营,看到下面的objective-c语法就感到困惑...
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:
(NSDictionary *)launchOptions { }
据我理解,它的格式应该是 (返回类型)函数名:(参数类型)参数;,具体如下:
- (void)applicationWillResignActive:(UIApplication *)application { }
参数(UIApplication *)application didFinishLaunchingWithOptions是什么意思?