获取或设置工具栏按钮集合中指定索引位置的工具栏按钮。

Gets or sets the toolbar button at the specified indexed location in the toolbar button collection.

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在每个可以设置文本格式的文本框上方会显示格式设置工具栏。

The formatting toolbar appears above each text box in which text formatting is available.

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您可以在设计时设置工具栏上的属性，来控制工具栏的外观并确定运行时选项的可用性。

You can set properties on the toolbar at design time to control its appearance and determine the availability of run-time options.

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