This constructs a new instance of the delegate type using the constructor MyDelegate (object, IntPtr).

通过使用MyDelegate (object, IntPtr)构造器，就构建了一个委托类型的新实例。

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There also the compiler ensures that the return value of EndInvoke is the same as the return value of the delegate type (this type is an int in our example).

编译器同时也会确保EndInvoke返回值类型和委托返回类型一致（在我们的例子中，这个类型是int）。

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You can use the delegate type to declare a variable that can refer to any method with the same signature as the delegate.

可以使用委托类型来声明一个变量，该变量可以引用与委托签名相同的所有方法。

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