我们都知道有几种Windows Phone设备的显示和分辨率大小不同

we all know that there are several Windows Phone Devices which have different size of Displays and Resolution

Windows Phone 7.x仅具有一种分辨率-480x800.有不同的方向(纵向，横向等)，并且仿真器支持这些方向.

Windows Phone 7.x only has one resolution - 480x800.  There are different orientations (portrait, landscape, etc. - and the emulator supports those.

较小的屏幕仅具有较高的像素密度，较大的屏幕具有较小的密度-但它们都支持480x800.

The smaller screens just have higher pixel densities, the larger have smaller densities - but they all support 480x800. 

我想，如果您需要做一些选择，例如在较小的显示器上工作的字体大小，您可以调整资源管理器的缩放以模拟不同的大小.

I guess you could adjust the zoom of the explorer to simulate the different sizes if you needed to do things like pick font sizes that work on the smaller displays.