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Code
class Program
{
static void Main(string[] args)
{
Sample1.M1(new OrdinaryPeople("ZhangSan"));
Sample1.M1(new Superman("Hancock"));
Console.Read();
}
}
class Sample1
{
public static void M1(Person p)
{
p.Introdce();
}
}
class Person
{
protected string mName;
public Person(string pName)
{
this.mName = pName;
}
public virtual void Introdce()
{
Console.WriteLine("Hello,I am " + this.mName);
}
}
class OrdinaryPeople : Person
{
public OrdinaryPeople(string pName)
: base(pName)
{
}
public new void Introdce()
{
Console.WriteLine("Hello,I am an ordinary person," + this.mName);
}
}
class Superman : Person
{
public Superman(string pName)
: base(pName)
{
}
public new void Introdce()
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{
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