C#運算子多載和轉換運算子執行個體（兩個結構）

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struct Celsius{　　private float degrees;　　public float Degrees　　{　　　　get { return this.degrees; }　　}public Celsius(float temp){　　this.degrees = temp;　　Console.WriteLine("這是攝氏溫度的構造！");}public static Celsius operator +(Celsius x, Celsius y)//重載+運算子{　　return new Celsius(x.degrees + y.degrees);}public static Celsius operator -(Celsius x, Celsius y)//重載-運算子{　　return new Celsius(x.degrees - y.degrees);}/// <summary>/// 隱式將Celsius轉換成float/// </summary>/// <param name="c">Celsius型別參數</param>/// <returns>float類型傳回值</returns>public static implicit operator float(Celsius c){　　return c.Degrees;}/// <summary>/// 隱式的將float轉換成Celsius/// </summary>/// <param name="f">float型別參數</param>/// <returns>Celsius類型傳回值</returns>public static implicit operator Celsius(float f){　　Celsius c = new Celsius(f);　　return c;}/// <summary>/// 轉換運算子，顯示的將Celsius類型轉換成Fahrenheit類型/// </summary>/// <param name="c">Celsius型別參數</param>/// <returns>Fahrenheit類型傳回值</returns>/// public static explicit operator Fahrenheit(Celsius c){　　float fl=((9.0f / 5.0f) * c.Degrees + 32);//Celsius類型轉換成Fahrenheit的規則　　Fahrenheit f = new Fahrenheit(fl);　　return f;}public override string ToString()//重寫ToString{　　return this.Degrees.ToString();}} struct Fahrenheit{　　private float degrees;　　　public float Degrees　　{　　　　get { return this.degrees; }　　}public Fahrenheit(float temp){　　this.degrees = temp;　　Console.WriteLine("這是華氏溫度的構造！");}public static Fahrenheit operator +(Fahrenheit x, Fahrenheit y){　　return new Fahrenheit(x.degrees + y.degrees);}public static Fahrenheit operator -(Fahrenheit x, Fahrenheit y){　　return new Fahrenheit(x.degrees - y.degrees);}public static implicit operator float(Fahrenheit c){　　return c.Degrees;}public static implicit operator Fahrenheit(float f){　　Fahrenheit fa = new Fahrenheit(f);　　return fa;}public static explicit operator Celsius(Fahrenheit f){　　float fl = (5.0f / 9.0f) * (f.Degrees - 32);　　Celsius c = new Celsius(fl);　　return c;}public override string ToString(){　　return this.Degrees.ToString();}} class Program{static void Main(string[] args){　　Fahrenheit f = new Fahrenheit(100f);　　Console.WriteLine("{0} fahrenheit = {1} celsius", f.Degrees, (Celsius)f);　　Celsius c = 32f;//隱式將float轉換成celsius　　Console.WriteLine("{0} celsius = {1} fahrenheit",c.Degrees,(Fahrenheit)c);　　Fahrenheit f2 = f + (Fahrenheit)c;//驗證Fahrenheit的+重載　　Console.WriteLine("{0} + {1} = {2} fahernheit",f.Degrees,(Fahrenheit)c,f2.Degrees);　　Fahrenheit f3 = 100f;//隱式將float轉換成Fahrenheit　　Console.WriteLine("{0} fahrenheit",f3.Degrees);}}

 

C#運算子多載和轉換運算子執行個體（兩個結構）