Objective-C(IOS)推荐的属性读写方法

- (NSString *)title {
    return [[title retain] autorelease];
}
- (void)setTitle:(NSString *)newTitle {
    if (title != newTitle) {
    [title release];
    title = [newTitle retain];
    }
}

转载于:https://www.cnblogs.com/mrhgw/archive/2012/06/30/2570838.html