feat: add comprehensive code examples in Kotlin, Rust, and C#

phodal · phodal · commit 058060924342 · 2024-08-23T08:52:46.000+08:00
- Added code examples covering variables, functions, control flow, classes, enums, generics, error handling, and more in Kotlin, Rust, and C#.
diff --git a/extension-manual-tests/ComprehensiveCSharpExample.cs b/extension-manual-tests/ComprehensiveCSharpExample.cs
@@ -0,0 +1,198 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace ComprehensiveCSharpExample
+{
+    // 1. 枚举
+    enum Direction { North, South, East, West }
+
+    // 2. 接口
+    interface IDrawable
+    {
+        void Draw();
+    }
+
+    // 3. 结构体
+    struct Point
+    {
+        public int X { get; }
+        public int Y { get; }
+
+        public Point(int x, int y)
+        {
+            X = x;
+            Y = y;
+        }
+    }
+
+    // 4. 类与继承、多态
+    class Shape
+    {
+        public virtual double Area() => 0.0;
+    }
+
+    class Circle : Shape
+    {
+        public double Radius { get; }
+
+        public Circle(double radius)
+        {
+            Radius = radius;
+        }
+
+        public override double Area() => Math.PI * Radius * Radius;
+    }
+
+    class Square : Shape, IDrawable
+    {
+        public double Side { get; }
+
+        public Square(double side)
+        {
+            Side = side;
+        }
+
+        public override double Area() => Side * Side;
+
+        public void Draw()
+        {
+            Console.WriteLine($"Drawing a square with side {Side}");
+        }
+    }
+
+    // 5. 泛型类
+    class Box<T>
+    {
+        public T Value { get; }
+
+        public Box(T value)
+        {
+            Value = value;
+        }
+    }
+
+    class Program
+    {
+        // 6. 委托与事件
+        public delegate void Notify(string message);
+        public static event Notify OnNotify;
+
+        static void Main(string[] args)
+        {
+            // 7. 变量与数据类型
+            int number = 42;
+            double pi = 3.14159;
+            bool isTrue = true;
+            char letter = 'C';
+            string text = "Hello, C#!";
+
+            Console.WriteLine($"Number: {number}, Pi: {pi}, IsTrue: {isTrue}, Letter: {letter}, Text: {text}");
+
+            // 8. 控制流
+            if (number > 40)
+            {
+                Console.WriteLine("Number is greater than 40");
+            }
+            else
+            {
+                Console.WriteLine("Number is 40 or less");
+            }
+
+            for (int i = 0; i < 5; i++)
+            {
+                Console.WriteLine($"i = {i}");
+            }
+
+            int counter = 0;
+            while (counter < 5)
+            {
+                Console.WriteLine($"Counter = {counter}");
+                counter++;
+            }
+
+            // 9. 函数调用
+            int sum = Add(10, 20);
+            Console.WriteLine($"Sum: {sum}");
+
+            // 10. 枚举使用
+            Navigate(Direction.East);
+
+            // 11. 类与对象
+            Circle circle = new Circle(5.0);
+            Square square = new Square(4.0);
+            Console.WriteLine($"Circle Area: {circle.Area()}");
+            Console.WriteLine($"Square Area: {square.Area()}");
+            square.Draw();
+
+            // 12. 结构体
+            Point point = new Point(10, 20);
+            Console.WriteLine($"Point coordinates: X = {point.X}, Y = {point.Y}");
+
+            // 13. 泛型
+            Box<int> intBox = new Box<int>(123);
+            Box<string> stringBox = new Box<string>("Generics in C#");
+            Console.WriteLine($"Int Box: {intBox.Value}");
+            Console.WriteLine($"String Box: {stringBox.Value}");
+
+            // 14. 集合与 LINQ
+            List<int> numbers = new List<int> { 1, 2, 3, 4, 5 };
+            var doubled = numbers.Select(n => n * 2);
+            var filtered = numbers.Where(n => n > 3);
+
+            Console.WriteLine("Doubled numbers: " + string.Join(", ", doubled));
+            Console.WriteLine("Filtered numbers: " + string.Join(", ", filtered));
+
+            // 15. 异常处理
+            try
+            {
+                int result = Divide(10, 0);
+                Console.WriteLine($"Result: {result}");
+            }
+            catch (DivideByZeroException e)
+            {
+                Console.WriteLine("Error: " + e.Message);
+            }
+
+            // 16. 事件触发
+            OnNotify += MessageHandler;
+            OnNotify?.Invoke("This is a notification message.");
+        }
+
+        // 17. 函数
+        static int Add(int a, int b) => a + b;
+
+        // 18. 异常处理函数
+        static int Divide(int a, int b)
+        {
+            if (b == 0) throw new DivideByZeroException("Cannot divide by zero");
+            return a / b;
+        }
+
+        // 19. 枚举与 switch 语句
+        static void Navigate(Direction direction)
+        {
+            switch (direction)
+            {
+                case Direction.North:
+                    Console.WriteLine("Going North");
+                    break;
+                case Direction.South:
+                    Console.WriteLine("Going South");
+                    break;
+                case Direction.East:
+                    Console.WriteLine("Going East");
+                    break;
+                case Direction.West:
+                    Console.WriteLine("Going West");
+                    break;
+            }
+        }
+
+        // 20. 事件处理函数
+        static void MessageHandler(string message)
+        {
+            Console.WriteLine($"Received message: {message}");
+        }
+    }
+}
diff --git a/extension-manual-tests/Sample.kt b/extension-manual-tests/Sample.kt
@@ -0,0 +1,131 @@
+// 1. 变量与常量
+val pi: Double = 3.14159  // 常量 (不可变)
+var x: Int = 5  // 变量 (可变)
+x = 6
+
+// 2. 基本数据类型与字符串模板
+val integer: Int = 42
+val float: Float = 3.14f
+val boolean: Boolean = true
+val character: Char = 'K'
+val string: String = "Hello, Kotlin!"
+println("Integer: $integer, Float: $float, Boolean: $boolean, Character: $character, String: $string")
+
+// 3. 函数与默认参数
+fun add(a: Int, b: Int = 10): Int {
+    return a + b
+}
+
+val sum = add(5)
+println("Sum: $sum")
+
+// 4. 控制流
+if (sum > 10) {
+    println("Sum is greater than 10")
+} else {
+    println("Sum is 10 or less")
+}
+
+for (i in 0..4) {
+    println("i = $i")
+}
+
+var counter = 0
+while (counter < 5) {
+    println("Counter = $counter")
+    counter++
+}
+
+// 5. 类与对象
+class Rectangle(val width: Int, val height: Int) {
+    fun area(): Int {
+        return width * height
+    }
+}
+
+val rect = Rectangle(30, 50)
+println("The area of the rectangle is ${rect.area()} square pixels.")
+
+// 6. 继承与抽象类
+abstract class Shape {
+    abstract fun area(): Double
+}
+
+class Circle(val radius: Double) : Shape() {
+    override fun area(): Double {
+        return pi * radius * radius
+    }
+}
+
+val circle = Circle(5.0)
+println("The area of the circle is ${circle.area()} square units.")
+
+// 7. 接口
+interface Drawable {
+    fun draw()
+}
+
+class Square(val side: Int) : Drawable {
+    override fun draw() {
+        println("Drawing a square with side $side")
+    }
+}
+
+val square = Square(10)
+square.draw()
+
+// 8. 数据类与解构
+data class Point(val x: Int, val y: Int)
+
+val point = Point(10, 20)
+val (xCoord, yCoord) = point
+println("Point coordinates: x = $xCoord, y = $yCoord")
+
+// 9. 枚举
+enum class Direction {
+    NORTH, SOUTH, EAST, WEST
+}
+
+fun navigate(direction: Direction) {
+    when (direction) {
+        Direction.NORTH -> println("Going North")
+        Direction.SOUTH -> println("Going South")
+        Direction.EAST -> println("Going East")
+        Direction.WEST -> println("Going West")
+    }
+}
+
+navigate(Direction.EAST)
+
+// 10. 集合与集合操作
+val numbers = listOf(1, 2, 3, 4, 5)
+val doubled = numbers.map { it * 2 }
+val filtered = numbers.filter { it > 3 }
+println("Numbers: $numbers")
+println("Doubled: $doubled")
+println("Filtered: $filtered")
+
+// 11. 异常处理
+fun divide(a: Int, b: Int): Int {
+    return try {
+        a / b
+    } catch (e: ArithmeticException) {
+        println("Error: Division by zero")
+        0
+    }
+}
+
+val result = divide(10, 0)
+println("Result: $result")
+
+// 12. 泛型
+class Box<T>(val item: T) {
+    fun getItem(): T {
+        return item
+    }
+}
+
+val intBox = Box(123)
+val stringBox = Box("Hello, Generics!")
+println("Int Box: ${intBox.getItem()}")
+println("String Box: ${stringBox.getItem()}")
diff --git a/extension-manual-tests/Sample.rs b/extension-manual-tests/Sample.rs
