FormTest状态 用法 使用FormsTest.Page代替Page使用FormsTest.xControl代替Xamarin.Forms.xControl <? xml version = " 1.0 " encoding = " utf-8 " ?> < ft : Page xmlns = " http://xamarin.com/schemas/2014/forms " xmlns : x = " http://schemas.microsoft.com/winfx/2009/xaml " xmlns : ft = " clr-name