C#委托初級(jí)使用的實(shí)例代碼

字號(hào):


    這篇代碼介紹了C#中委托的初級(jí)使用實(shí)例,有需要的朋友可以參考一下
    代碼如下:
    delegate double ProcessDelegate(double param1, double param2);
    static double Muliply(double param1, double param2)
    {
    return param1 * param2;
    }
    static double Divide(double param1, double param2)
    {
    return param1 / param2;
    }
    static void Main(string[] args)
    {
    ProcessDelegate process;
    Console.WriteLine("Enter 2 numbers separated with a comma:");
    string input = Console.ReadLine();
    int commaPos = input.IndexOf(",");
    double param1 = Convert.ToDouble(input.Substring(0,commaPos));
    double param2 = Convert.ToDouble(input.Substring(commaPos+1,input.Length -commaPos -1));
    Console.WriteLine("Enter M to multiply or D to divide:");
    input = Console.ReadLine();
    if (input.Equals("M"))
    {
    process = new ProcessDelegate(Muliply);
    }
    else {
    process = new ProcessDelegate(Divide);
    }
    Console.WriteLine("Result: {0}",process(param1,param2));
    Console.ReadKey();
    }