蓝少泽

摘要： 12.enumerate with bolcks（快速循环代码块）：for example：NSArray *newHats = @[@"Cowboy", @"Conductor", @"Baseball", @"Beanie", @"Beret", @"Fez"];//普通的循环for (NSString *hat in newHats) { NSLog(@"Trying on hat %@", hat);}//enumerate with blocks 阅读全文