HELP+HELP+HELP+HELP:"未将对象引用设置到对象的实例" :HELP+HELP+HELP+HELP
using System;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Windows.Forms
public class CommFun
{
[DllImport("advapi32")]
private static extern int GetUserNameA(char[] Buff,int size);
public static string GetCurUserName()
{
string strBuff;
strBuff = new string(' ',144);
try
{
GetUserNameA(strBuff,144);
return strBuff.TrimEnd(null);
}
catch(System.Exception ex)
{
MessageBox.Show(ex.Message);
return "";
}
}
public class Test
{
static void Main()
{
MessageBox.Show(CommFun.GetCurUserName());
}
}
以上代码运行时出现“未将对象引用设置到对象的实例”的错误,
小弟乃一初学者,望各位大侠指点迷津,不甚感激!