你的文件

gistfile1.m

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    // Insert code here to initialize your application
    SHFoo *foo = [SHFoo alloc];
    [foo say: @"Yes" whosay: @"Here is Shawn huang."];
    Boolean b = true;
    BOOL b2 = YES;
    b = !b2;
    NSLog(@"Bool: %d %d", b, b2);
}
 
@end