WPF子界面嵌入主窗口示例代码

D:\Users\liqixing\source\repos\test\test\bin\Debug\test.exe.config D:\Users\liqixing\source\repos\test\test\bin\Debug\test.exe D:\Users\liqixing\source\repos\test\test\bin\Debug\test.pdb D:\Users\liqixing\source\repos\test\test\obj\Debug\test.csprojAssemblyReference.cache D:\Users\liqixing\source\repos\test\test\obj\Debug\MainWindow.g.cs D:\Users\liqixing\source\repos\test\test\obj\Debug\App.g.cs D:\Users\liqixing\source\repos\test\test\obj\Debug\test_MarkupCompile.cache D:\Users\liqixing\source\repos\test\test\obj\Debug\test_MarkupCompile.lref D:\Users\liqixing\source\repos\test\test\obj\Debug\MainWindow.baml D:\Users\liqixing\source\repos\test\test\obj\Debug\test.g.resources D:\Users\liqixing\source\repos\test\test\obj\Debug\test.Properties.Resources.resources D:\Users\liqixing\source\repos\test\test\obj\Debug\test.csproj.GenerateResource.cache D:\Users\liqixing\source\repos\test\test\obj\Debug\test.csproj.CoreCompileInputs.cache D:\Users\liqixing\source\repos\test\test\obj\Debug\test.exe D:\Users\liqixing\source\repos\test\test\obj\Debug\test.pdb D:\Users\liqixing\source\repos\test\test\obj\Debug\ChildPage.g.cs D:\Users\liqixing\source\repos\test\test\obj\Debug\ChildWindow2.g.cs D:\Users\liqixing\source\repos\test\test\obj\Debug\ChildPage.baml D:\Users\liqixing\source\repos\test\test\obj\Debug\ChildWindow2.baml