An event can be raised only from the declaration space in which it is declared. Therefore, a class cannot raise events from any other class, even one from which it is derived. 事件只能在它被声明的 ...……
SqlConnection conn=new SqlConnection(@amp;quot;data source=chenyuming2004VSdotNET;uid=sa;pwd=cym;database=lhfamp;quot;);conn.Open();SqlCommand cmd=new SqlCommand(amp;quot;insert into fuser val ...……
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication13
{
class Program
{
static void Main(string args)
{……