C综合实验报告.doc

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 -1) for (i = 0; i 5; i+) mystr = mystr + sr.ReadLine() + t; mystr = mystr + rn; sr.Close(); fs.Close(); textBox6.Text = mystr; private void textBox1_TextChanged(object sender, EventArgs e) private void groupBox2_Enter(object sender, EventArgs e) private void Form5_Load(object sender, EventArgs e) Proj_Test_end:using System;using System.Collections.Generic;using System.Windows.Forms;namespace Test_end static class Program STAThread static void Main() Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form5(); 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_end2 public partial class Form1 : Form public Form1() InitializeComponent(); private void button1_Click(object sender, EventArgs e) int i; string filen; string filea; listBox1.Items.Clear(); if (!Directory.Exists(textBox1.Text) MessageBox.Show(textBox1.Text + 文件夹不存在,信息提示,MessageBoxButtons.OK); else filen = Directory.GetFiles(textBox1.Text); for (i = 0; i -1) mystr = mystr + sr.ReadLine() + rn; sr.Close(); fs.Close(); textBox1.Text = mystr; Form3代码如下：using System;using System.Collections.Generic;using System.IO; using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace Test_end2 public partial class Form3 : Form string path = GMyTest1.txt; /文件名path作为Form3类的字段 public Form3() InitializeComponent(); private void button1_Click(object sender, EventArgs e) if (File.Exists(path) File.Delete(path); else FileStream fs = File.OpenWrite(path); StreamWriter sw = new StreamWriter(fs); sw.WriteLine(textBox1.Text); sw.Close(); fs.Close(); button2.Enabled = true; private void button2_Click(object sender, EventArgs e) string mystr = ; FileStream fs = File.OpenRead(path); StreamReader sr = new StreamReader(fs); while (sr.Peek() -1) mystr = mystr + sr.ReadLine() + rn; sr.Close(); fs.Close(); textBox2.Text = mystr; private void Form3_Load(object sender, EventArgs e) textBox1.Text = ; textBox2.Text = ; button1.Enabled = true; button2.Enabled = false; 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_end2 public partial class Form4 : Form string path = GMyTest.dat; const int stnum = 4; /学生人数常量 struct Student public int sno; public string sname; public double score; Student st = new Studentstnum; public Form4() InitializeComponent(); private void button1_Click(object sender, EventArgs e) st0.sno = 1; st0.sname = 王 华; st0.score = 90.2; st1.sno = 3; st1.sname = 陈红兵; st1.score = 87.5; st2.sno = 4; st2.sname = 刘 英; st2.score = 72.5; st3.sno = 2; st3.sname = 张晓华; st3.score = 88.5; int i; if (File.Exists(path) File.Delete(path); FileStream fs = File.OpenWrite(path); BinaryWriter sb = new BinaryWriter(fs, Encoding.Default); for (i = 0; i -1) mystr = mystr + sb.ReadInt32() + t + sb.ReadString() + t + sb.ReadDouble() + rn; sb.Close(); fs.Close(); textBox1.Text = mystr; Form6代码如下：using System;using System.Collections.Generic;using System.IO;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace Test_end2 public partial class Form6 : Form string path = H:MyTest.dat; public Form6() InitializeComponent(); private void Form6_Load(object sender, EventArgs e) comboBox1.Items.Add(1); comboBox1.Items.Add(2); comboBox1.Items.Add(3); comboBox1.Items.Add(4); comboBox1.Text = ; textBox1.Text = ; private void button1_Click(object sender, EventArgs e) int n,reclen,currp; textBox1.Text = ; if (comboBox1.Text != ) string mystr; FileStream fs = File.OpenRead(path); BinaryReader sb = new BinaryReader(fs, Encoding.Default); reclen = (int)(fs.Length / 4); /每个记录的长度 n = Convert.ToInt16(comboBox1.Text); currp = (n - 1) * reclen; fs.Seek(currp, SeekOrigin.Begin); mystr = sb.ReadInt32() + t + sb.ReadString() + t + sb.ReadDouble(); sb.Close(); fs.Close(); textBox1.Text = mystr; Form7代码如下：using System;using System.IO; using System.Runtime.Serialization; using System.Runtime.Serialization.Formatters.Binary; using System.Collections; using System.Windows.Forms;namespace Test_end2 public partial class Form7 : Form Serializable public class Student private int no; /学号 private string name; public int pno get return no; set no = value; public string pname get return name; set name = value; public Form7() InitializeComponent(); private void button1_Click(object sender, EventArgs e) ArrayList st = new ArrayList(); Student s1 = new Student(); s1.pno = 1; s1.pname = 王华; Student s2 = new Student(); s2.pno = 8; s2.pname = 李明; st.Add(s1); st.Add(s2); FileStream f = new FileStream(H:C#2005ch11studnt.dat,FileMode.Create); BinaryFormatter formatter = new BinaryFormatter(); formatter.Serialize(f,st); f.Close(); f = new FileStream(H:C#2005ch11studnt.dat, FileMode.Open); st.Clear(); st = (ArrayList)formatter.Deserialize(f); f.Close(); textBox1.Text = 学号t姓名 + rn; foreach (Student s in st) textBox1.Text = textBox1.Text + string.Format(0t1, s.pno, s.pname) + rn; Proj_CS：using System;using System.Collections.Generic;using System.Windows.Forms;namespace Test_end2 static class Program / / 应用程序的主入口点。 / STAThread static void Main() Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form7(); 实验结果及分析实验内容1相关窗体如下： For