不要过于担心尺寸和位置，因为后面可以使用控件中的定位手柄对它们进行修改。

Don't worry too much about the size and location as they can be changed later using the positioning handles on the control.

youdao

StackPanel是一种简单的布局面板，它支持用行或列的方式来定位其中包含的控件。

The StackPanel control is a simple layout panel that supports positioning its contained controls in either a row or column layout.

youdao

现在只需要对按钮控件进行定位或者修改尺寸(按照您的意愿)，然后关闭设计模式以测试控件。

All that is left to do now is to position or size the button control as you want and then turn off design mode to test the control.

youdao