using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace _04我的字符串
{
class Program
{
static void Main(string[] args)
{
string[] strs = new string[] { "xiaoming", "laowang", "xiaowang" };
MyString ms = new MyString();
ms.ChangeString(strs, StringToUpper);
foreach (string item in strs)
{
Console.WriteLine(item);
}
Console.ReadKey();
}
public static string Add(string str)
{
return "=" + str + "=";
}
public static string StringToUpper(string str)
{
return str.ToUpper();
}
}
}