UIAlertController

// 创建弹框控制器
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"请输入团购信息" message:nil preferredStyle:UIAlertControllerStyleAlert];
    
    // 添加按钮
    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];
    [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
        // 创建模型
        XMGDeal *deal = [[XMGDeal alloc] init];
        deal.title = [alert.textFields[0] text];
        deal.price = [alert.textFields[1] text];
        [self.deals insertObject:deal atIndex:0];
        
        // 刷新数据
        [self.tableView reloadData];
    }]];
//    [alert addAction:[UIAlertAction actionWithTitle:@"不知道" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
//        NSLog(@"点击了不知道按钮");
//    }]];
//    [alert addAction:[UIAlertAction actionWithTitle:@"不知道2" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
//        NSLog(@"点击了不知道2按钮");
//    }]];
    
    // 添加文本输入框
    [alert addTextFieldWithConfigurationHandler:^(UITextField *textField) {
        textField.placeholder = @"请输入团购名字";
    }];
    [alert addTextFieldWithConfigurationHandler:^(UITextField *textField) {
        textField.placeholder = @"请输入团购价格";
    }];
    
    // 显示控制器
    [self presentViewController:alert animated:YES completion:nil];