btnMutableArray = [[NSMutableArray alloc]init]; //將button放到數組裡面

 NSMutableDictionary *titleDic = [[NSMutableDictionary alloc]init]; //這個是二級標題的所有資訊的字典 首頁返回的

    for (int i = 0; i < titleMutableArray.count; i++) {

        titleDic = [titleMutableArray objectAtIndex:i];

 allButton = [[UIButton alloc]

        [allButton setTitle:titleDic[@"name"] forState:UIControlStateNormal];

        classid = [titleDic[@"id"]intValue];

 allButton.tag = classid;

 allButton.titleLabel.font = [UIFont systemFontOfSize:14];

        [allButton setTitleColor:

        [allButton setTitleColor:RGBCOLOR(51, 51, 51) forState:UIControlStateNormal];

 allButton.titleLabel.textAlignment = NSTextAlignmentCenter;

        [allButton addTarget:self action:@selector(fashionButtonPressed:)forControlEvents:UIControlEventTouchUpInside];

        [headerScrollerView addSubview:allButton];

        [btnMutableArray addObject:allButton];

    }

    ((UIButton *)[btnMutableArray objectAtIndex:0]).selected=YES;  // 關鍵是這裡，設定 陣列的第一個button為選中狀態

//點選事件

-(void)fashionButtonPressed:(UIButton *)sender{

    [myFashionMutableArray removeAllObjects];

    [_myfashionTableView reloadData];

    ((UIButton *)[btnMutableArray objectAtIndex:0]).selected=NO; //點選其他button之後這裡設定為非選中狀態，否則會出現2個紅色的選中狀態

    if (sender != allButton) {

 allButton.selected = NO;

        allButton = sender;

    } //這個if是網上抄的，有點神奇

 allButton.selected = YES;

    _fashionpid = sender.tag;

    pageSize = 0;

    [self loaddataMethodsWithpid:_fashionpid page:pageSize number:Baby_NumofList andSord:0];

}