编程学习网为您整理以下代码实例，主要实现：C# abstract关键字，希望可以帮到各位朋友。
using System;
public abstract class Vehicle {
public abstract voID display();
}
public class Bus : Vehicle {
public overrIDe voID display() {
Console.Writeline("Bus");
}
}
public class Car : Vehicle {
public overrIDe voID display() {
Console.Writeline("Car");
}
}
public class Motorcycle : Vehicle {
public overrIDe voID display() {
Console.Writeline("Motorcycle");
}
}
public class MyClass {
public static voID Main() {
Vehicle v;
v = new Bus();
v.display();
v = new Car();
v.display();
v = new Motorcycle();
v.display();
}
}
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