对话框是Windows应用程序中最重要的用户界面元素之一，是与用户交互的重要手段，在程序运行过程中，对话框可用于扑捉用户的输入信息或数据。-Windows Application dialog box is the most important element of the user interface is an important means of interaction with the user, the program is running, the dialog box can be used to capture the user' s input information or data.