众所周知，ViewController中button的单击事件为:

[btn addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];

直接在该文件下面实现方法：

- (void):(UIButton *)btn
{
	UIAlertController *aler = [UIAlertController alertControllerWithTitle:@"提示" message:@"详细信息" preferredStyle:UIAlertControllerStyleAlert];
    
    UIAlertAction *sureAler = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleCancel handler:nil];
	UIAlertAction *cancelAler = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDestructive handler:nil];
	
    [aler addAction:sureAler];
    [aler addAction:cancelAler];
    [self presentViewController:aler animated:YES completion:nil];
}

但是在TableView的cell中则会报错，无法调用presentViewController，因为cell页面继承自UITableViewCell，且设置时需要区分是来自哪个按钮的请求，故必须设置tag值

1、首先，在该cell的头文件里面设置自定义代理（代理名字AlertClickDelegate自拟），写在@interface前面

@protocol AlertClickDelegate <NSObject>
-(void)clickTest:(NSInteger *)tag;
@end

然后在@interface里面声明代理

@property (nonatomic,weak)id<AlertClickDelegate>alertDelegate;

2、在cell页面的单击方法中设置代理转跳，并声明代理方法（此处代理方法为clickTest）

- (void)click:(UIButton *)btn
{
    if (self.alertDelegate != nil &&  [self.alertDelegate respondsToSelector:@selector(clickTest:)]) {
        [self.alertDelegate clickTest:btn.tag];
    }
}

3、在TableViewController里声明代理@interface后面写上
在cellForRow方法中,在声明并用到该自定义代理的cell中，设置代理cell.alertDelegate = self;
4、在TableViewController中，写入真正的单击事件具体方法

- (void)clickTest:(NSInteger *)tag
{
	if (tag == 0) {
		UIAlertController *aler = [UIAlertController alertControllerWithTitle:@"提示" message:@"详细信息" 								preferredStyle:UIAlertControllerStyleAlert];
    
    UIAlertAction *sureAler = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleCancel handler:nil];
	UIAlertAction *cancelAler = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDestructive handler:nil];
	
    [aler addAction:sureAler];
    [aler addAction:cancelAler];
    [self presentViewController:aler animated:YES completion:nil];
	}else if(tag == 1){
		UIAlertController *aler = [UIAlertController alertControllerWithTitle:@"提示" message:@"详细信息" 								preferredStyle:UIAlertControllerStyleAlert];
    
    UIAlertAction *sureAler = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleCancel handler:nil];
	UIAlertAction *cancelAler = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDestructive handler:nil];
	
    [aler addAction:sureAler];
    [aler addAction:cancelAler];
    [self presentViewController:aler animated:YES completion:nil];
	}
}