using System;
class Client
{
public static void Main()
{
//重载是指方法名相同,方法的签名不同
Console.WriteLine(Add(10,5));
Console.WriteLine(Add("10","5"));
}
public static string Add(string a, string b)
{
return a + " add " + b;
}
public static int Add(int a, int b)
{
return a+b;
}
}