一.NSMutableDictionary?

NSMutableDictionary? * tags；

1.NSMutableDictionary 添加內容：

[tags setValue:xxx forKey :xxx];

2.NSMutableDictionary 遍歷：

for(NSString * title in tags){

?? //其中得到的title是key

}

3.NSMutableDictionary 根據key取得value：

[tags valueForKey :xxx];

二.NSMutableArray

NSMutableArray *buttons;

1.NSMutableArray添加內容：

[buttons addObject:xxx];

2.NSMutableArray遍歷：

for(xxxx *button in buttons){

}

三.動態添加按鈕到view以及添加按鈕點擊事件：

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
CGRect frame = CGRectMake(0,0,300,20);
[button setFrame:frame];
[button setTitle:@"xxx" forState:UIControlStateNormal];

[button addTarget:self action:@selector(xxxx) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];