如果将来自两个 类 的函数放在一个委托中会发生什么?
What happens if you put functions from two classes in one delegate?
我正在准备考试,我要研究各种代码。一个是关于 C# 中的委托 - 我没看到它做了什么,因为我不知道你是否可以将来自两个不同 类 的函数放在一个委托中。
代码如下:
namespace konzolnaApplikacijaDelegateVoidMain {
public delegate int MyDelegate(int x);
class Program
{
public int number;
public Program (int x)
{
number = x;
}
public int Add(int x)
{
return x + 10;
}
public int Substract(int x)
{
return x - 10;
}
public int Multiply(int x)
{
return x * 2;
}
static void Main(string[] args)
{
MyDelegate delegate;
Program first = new Program(20);
Program second = new Program(50);
delegate = first.Add;
delegate += second.Add;
delegate -= first.Substract;
delegate += second.Multiply;
delegate += first.Add;
delegate(first.number);
delegate(second.number);
Console.Write("{0}", first.number + second.number);
}
}
}
代表很简单。考虑以下委托的实现。
namespace DelegateExamples
{
class Program
{
//Declare a integer delegate to handle the functions in class A and B
public delegate int MathOps(int a, int b);
static void Main(string[] args)
{
MathOps multiply = ClassA.Multiply;
MathOps add = ClassB.Add;
int resultA = multiply(30, 30);
int resultB = add(1000, 500);
Console.WriteLine("Results: " + resultA + " " + resultB);
Console.ReadKey();
}
}
public class ClassA
{
public static int Multiply(int a, int b)
{
return a * b;
}
}
public class ClassB
{
public static int Add(int a, int b)
{
return a + b;
}
}
}
我正在准备考试,我要研究各种代码。一个是关于 C# 中的委托 - 我没看到它做了什么,因为我不知道你是否可以将来自两个不同 类 的函数放在一个委托中。
代码如下:
namespace konzolnaApplikacijaDelegateVoidMain {
public delegate int MyDelegate(int x);
class Program
{
public int number;
public Program (int x)
{
number = x;
}
public int Add(int x)
{
return x + 10;
}
public int Substract(int x)
{
return x - 10;
}
public int Multiply(int x)
{
return x * 2;
}
static void Main(string[] args)
{
MyDelegate delegate;
Program first = new Program(20);
Program second = new Program(50);
delegate = first.Add;
delegate += second.Add;
delegate -= first.Substract;
delegate += second.Multiply;
delegate += first.Add;
delegate(first.number);
delegate(second.number);
Console.Write("{0}", first.number + second.number);
}
}
}
代表很简单。考虑以下委托的实现。
namespace DelegateExamples
{
class Program
{
//Declare a integer delegate to handle the functions in class A and B
public delegate int MathOps(int a, int b);
static void Main(string[] args)
{
MathOps multiply = ClassA.Multiply;
MathOps add = ClassB.Add;
int resultA = multiply(30, 30);
int resultB = add(1000, 500);
Console.WriteLine("Results: " + resultA + " " + resultB);
Console.ReadKey();
}
}
public class ClassA
{
public static int Multiply(int a, int b)
{
return a * b;
}
}
public class ClassB
{
public static int Add(int a, int b)
{
return a + b;
}
}
}