         }
         return alert
     }
-    
+
     private static func actionSheet(title: String,
                                    message: String,
                                    actions: [UIAlertAction]) -> UIAlertController

import UIKit

extension RGAppTools where Base: UIAlertController {
    
    /// 在视图中显示 Alert
    /// - Parameters:
    ///   - viewController: 展示 Alert 的视图

        let alertView = alert(title: title, message: message, actions: actions)
        viewController.present(alertView, animated: true, completion: nil)
    }

    /// create an alert
    /// - Parameters:
    ///   - title: alert title
