实现重载方法时的错误 - 黑马程序员技术交流社区

class Program
{
/// <summary>
/// 定义一个static方法
/// </summary>
/// <param name="num1">第一个int型参数</param>
/// <param name="num2">第二个int型参数</param>
/// <returns>返回int型</returns>
public static int Add(int num1, int num2)
{
return num1 + num2;
}
/// <summary>
/// 重新定义Add方法
/// </summary>
/// <param name="num1">第一个int型参数</param>
/// <param name="num2">第二个double型参数</param>
/// <returns>返回double型</returns>
public double Add(int num1, double num2)
{
return num1 + num2;
}
/// <summary>
/// 重新定义Add方法，与第一个方法的参数个数不同
/// </summary>
/// <param name="num1"></param>
/// <param name="num2"></param>
/// <param name="num3"></param>
/// <returns></returns>
public int Add(int num1, int num2, int num3)
{
return num1 + num2 + num3;
}
static void Main(string[] args)
{
Program pro = new Program();//实例化类Program的对象pro
int x = 14;
int y = 21;
int z = 9;
double y2 = 5.3;
<FONT color=red>Console.WriteLine("{0}+{1}={2}", x, y, pro.Add(x, y));//此行报错</FONT>
Console.WriteLine("{0}+{1}={2}", x, y2, pro.Add(x, y2));
Console.WriteLine("{0}+{1}+{2}={3}", x, y, z, pro.Add(x, y, z));
Console.ReadKey();
}
}

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