方法的重载
参数不同,个数可以相同
参数相同,个数不能相同
static void Main(string[] arr)
{
Console.WriteLine(M(,));
Console.ReadKey();
} public static int M(int n1, int n2)
{
n1=n1+n2;
return n1;
}
public static string M(string s1, string s2)
{
s1 = s1 + s2;
return s1;
}
public static int M(int n1, int n2,int n3)
{
n1 = n1 + n2+n3;
return n1;
}