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RSS订阅C#起步，C#的介绍，C#编程基础，C#应用前景
中国联通的手机短信平台使用C#开发
中国小灵通短信平台使用C#开发
亚信的石化、鞍钢ERP使用的是C#
用友的财务软件是使用C#开发
中国网通的互联星空收费平台使用C#开发
联想的防火墙管理系统是使用C#开发
……
2009-04-22
visualC#课件
很好的visualC#课件
组件开发(CBD) Component Based Develop) 组件通常以.DLL文件打包成程序集。 包含了使用组件需要的所有信息: Code+MetaData 因此不需要再使用其他文件。
2009-04-22
C#计算器，C#小程序，关于编程的
简单的C#计算器，但很实用
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace calculator
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Btn_Clear_Click(object sender, EventArgs e)
{
txt_Result.Text =" ";
}
private void button0_Click(object sender, EventArgs e)
{
Button btn=(Button) sender;
txt_Result .Text +=btn.Text ;
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text += btn.Text;
}
private void button2_Click(object sender, EventArgs e)
{
Button btn=(Button) sender;
txt_Result .Text +=btn.Text ;
}
private void button3_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text += btn.Text;
}
private void button4_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text += btn.Text;
}
private void button5_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text += btn.Text;
}
private void button6_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text += btn.Text;
}
private void button7_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text += btn.Text;
}
private void button8_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text += btn.Text;
}
private void button9_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text += btn.Text;
}
private void btn_Add_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text = txt_Result.Text + " " + btn.Text + " ";
}
private void btn_Result_Click(object sender, EventArgs e)
{
double d_result;
string s_txt = txt_Result.Text;
int space = s_txt.IndexOf(' ');
string s1 = s_txt.Substring(0, space);
char operation =System. Convert.ToChar(s_txt.Substring((space + 1), 1));
string s2 = s_txt.Substring(space + 3);
double arg1 =System . Convert.ToDouble(s1);
double arg2 =System . Convert.ToDouble(s2);
switch (operation)
{
case '+':
d_result = arg1 + arg2;
break;
case '-':
d_result = arg1 - arg2;
break;
case '*':
d_result = arg1 * arg2;
break;
case '/':
if (arg2 == 0)
{
throw new ApplicationException();
}
else
{
d_result = arg1 / arg2;
}
break;
default:
throw new ApplicationException();
}
txt_Result.Text = d_result.ToString();
}
private void btn_Sub_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text = txt_Result.Text+ " "+ btn.Text+ " ";
}
private void btn_cheng_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text = txt_Result.Text + " " + btn.Text+ " ";
}
private void btn_chu_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text = txt_Result.Text+ " "+ btn.Text + " ";
}
private void button10_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
txt_Result.Text = txt_Result.Text + " " + btn.Text + " ";
}
private void button10_Click_1(object sender, EventArgs e)
{
}
}
}
2009-04-22
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