Initial commit: .NET practice project

Added CSharp, Nots, and Wpf directories with various practice exercises and projects.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Wpf/Prism1/ModuleA/Views/ViewC.xaml

@@ -0,0 +1,17 @@
+<UserControl x:Class="ModuleA.Views.ViewC"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:local="clr-namespace:ModuleA.Views"
+             mc:Ignorable="d"
+             d:DesignHeight="300" d:DesignWidth="300">
+    <Grid>
+        <TextBlock Text="View C 提示文字" FontSize="30"/>
+        
+        <StackPanel Margin="0,100,0,0">
+            <Button Command="{Binding ConfirmCommand}">确定</Button>
+            <Button Command="{Binding CancelCommand}">取消</Button>
+        </StackPanel>
+    </Grid>
+</UserControl>