您必须键入一些输入，单击按钮控件，直观验证结果消息，并将结果记录到Excel电子表格或其他数据存储中。

You'd have to enter some inputs, click the button control, visually verify the result message, and record the result into an Excel spreadsheet or other data store.

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当实际用户单击按钮时，它会生成一个Windows消息，该控件对该消息进行处理，并将其转换成托管事件。

When a real user clicks on a button it generates a Windows message which is processed by the control and turned into a managed event.

youdao

当实际用户单击按钮时，它会生成一个Windows消息，该控件对该消息进行处理，并将其转换成托管事件。

When a real user clicks on a button it generates a Windows message which is processed by the control and turned into a managed event.

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