本文介绍如何在设计任务面板中添加按钮至表单，并设置按钮属性以通过规则触发对话框显示消息。
1.Go to the Design Tasks panel on the left, click Controls and add a button to your form
2.Right click on the button, select properties
3.Click Rules, Add
4.Click add action and from the Action combo list select 'Show a dialog box expression' or 'Show a dialog box expression'. Type in your message and OK all the windows.
2.Right click on the button, select properties
3.Click Rules, Add
4.Click add action and from the Action combo list select 'Show a dialog box expression' or 'Show a dialog box expression'. Type in your message and OK all the windows.
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