求翻译：选择工程菜单中的添加窗体选项，或者在工程资源管理器窗口中单击鼠标右键，选择添加MDI窗体。在属性窗口中，我们可以修改窗体的Caption属性，改变标题栏；修改Height、Width属性改变窗体的大小，StartUpPositon属性决定窗体在屏幕上的位置；名称属性决定今后调用窗体时使用的代码；Windowstate属性决定窗体装载后的状态，是最大化、最小化还是自定义状态。是什么意思？

Select the Add Form option in the Project menu, or right-click in the Project Explorer window, select to add the mdi form. In the Properties window, we can modify the form's caption property and change the title bar; modify the height and width property to change the size of the form name attribute

Choose the Project menu, the Add Form option, or in the engineering Resource Manager window, click the right mouse button and select Add MDI form. In the Properties window, we can modify the form Caption properties, change the title bar; modify Height , Width properties window, the size attribute de

In the choice project menu increase window option, or single-clicks the mouse right key in the project resources supervisor window, the choice increases the MDI window.In the attribute window, we may revise the window the Caption attribute, the change title block; Revises Height, the Width attribute

Select the Project menu, click Add form option, or you can click the right mouse button in the Project Explorer window, select add MDI form. In the Properties window, we can change the Caption property of the form, change the title bar; modify the Height and Width properties to change the size of th

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