c综合实验报告
C#综合实验实验报告 专 业: _网 络 工 程 _ 班 级:_091班 _ 学 号:_080712110235_学生姓名:_姬 世 海 指导教师:_罗 为 _贵州大学计算机科学与信息学院 2012年6月13号 贵州大学实验报告学院:计算机科学与信息工程学院 专业:网络工程 班级:091姓名姬世海学号080712110235实验组6实验时间2012.6.7指导教师罗 为成绩实验项目名称C # 综 合 程 序 设 计实验目的1. 了解文件流的概念。2. 学会文本文件的读写。3. 学会序列化及二进制随机文件的读写。实验内容1.设计如下窗体,A.要求用户点击添加按钮时将当前学生信息添加到指定文本文件中(如源文件中有内容,不覆盖)。B.输入时,要求采用异常处理,针对输入学号、姓名为空,输入年龄、分数小于0的情况,弹出相应的出错对话框进行提示。C.点击显示按钮,将当前文件中内容显示出来。(提示:异常处理时要自定义异常,具体方法见参考程序) 2. A.封装一个学生类对象,将以上程序学生信息采用B.序列化方式写入二进制文件,并可C.输入学号随机查找相应记录信息显示在文本框中,查找记录时,也要求用D.异常处理处理输入学号为空的情况。 实验环境Pc机;VC+ 6.0环境(具体环境自己调整)实验步骤参考书P.27,windows窗体应用程序的实验步骤。序列化、二进制文件的读写及随机记录的读取参考书p.270实验程序实验内容1程序:Form1代码如下:using System;using System.IO;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace Test_endpublic partial class Form1 : Formpublic Form1()InitializeComponent();private void button1_Click(object sender, EventArgs e)StreamWriter f;string path = "G:myfile.txt"f = new StreamWriter(path);f.WriteLine(textBox1.Text);f.Close();private void textBox1_TextChanged(object sender, EventArgs e)private void Form1_Load(object sender, EventArgs e)Form2代码如下:using System;using System.IO;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace Test_end public partial class Form2 : Form public Form2() InitializeComponent(); private void button1_Click(object sender, EventArgs e) string path= "H:myfile.txt" StreamReader f; f = new StreamReader(path); textBox1.Text = f.ReadToEnd(); f.Close(); private void Form2_Load(object sender, EventArgs e) Form3代码如下:using System;using System.IO;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace Test_end public partial class Form3 : Form public Form3() InitializeComponent(); private void button1_Click(object sender, EventArgs e) stringpath = "G:myfile.dat" FileStream f = File.OpenWrite(path); BinaryWriter sb = new BinaryWriter(f); int i; string name = new string3"王华", "孙强", "成功" float score = new float378.5f, 88.6f, 98.5f; for (i = 0; i <= 2; i+) sb.Write(namei); sb.Write(scorei); sb.Close(); f.Close(); private void Form3_Load(object sender, EventArgs e) Form4代码如下:using System;using System.IO;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace Test_end public partial class Form4 : Form public Form4() InitializeComponent(); private void button1_Click(object sender, EventArgs e) stringpath = "G:myfile.dat" if (!File.Exists(path) textBox1.Text = "指定的文件不存在" else FileStream f = File.OpenRead(path); BinaryReader sb = new BinaryReader(f); string mystr = "" string name = "" float score = 0; int i; float s = 0; for (i = 0; i <= 2; i+) name = sb.ReadString(); score = sb.ReadSingle(); s = s + score; mystr = mystr + string.Format("0t1rn", name, score); textBox1.Text = mystr; textBox2.Text = string.Format("0",s / 3); sb.Close(); f.Close(); private void Form4_Load(object sender, EventArgs e) Form5代码如下:using System;using System.IO;using System.Text;using System.Windows.Forms;namespace Proj11_2 public partial class Form5 : Form string path = "H:C#2005ch11student.txt" public Form5() InitializeComponent(); private void button1_Click(object sender, EventArgs e)