C#程序设计第三版（李春葆）第12章文件操作课后习题答案

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原创最新推荐文章于 2026-09-20 13:28:25 发布 2.1k 阅读 AI 写同款· GEO 优化 ›

c#程序设计教程（李春葆第三版）第六章课后程序题答案 exci6-1 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace exci6_1 { public class Employee //普通职工类 { private double bsalary... 阅读详情

编程题

（上机实验题在最后！）
~~----------------------------------------------分割线------------------------------------------------------------------------------~~

存储

存储----存储----存储

存储控件图

// An highlighted block
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace exci12
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string path = "F:\\MyTest1.txt";//文件名
            if (File.Exists(path))
                File.Delete(path);
            else
            {
                FileStream fs = File.OpenWrite(path);
                StreamWriter sw = new StreamWriter(fs,Encoding.Default);
                sw.WriteLine(textBox1.Text);
                sw.Close();
                fs.Close();
            }
        }
    }
}

读取

读取控件图

// An highlighted block
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace exci12
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string path = "F:\\MyTest1.txt";//文件名
            string mystr = "";
            FileStream fs = File.OpenRead(path);
            StreamReader sr = new StreamReader(fs, Encoding.Default);
                            //指定打开文件
                             //将文件流指针定位在开始位置
            fs.Seek(0,SeekOrigin.Begin);
            while (sr.Peek() > -1)
                mystr = mystr + sr.ReadLine() + "/r/n";
            sr.Close();
            fs.Close();
            textBox1.Text = mystr;
        }
    }
}

上机实验题

在这里插入图片描述

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        string path = "D:\\MyTest1.txt";

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

            if (File.Exists(path))
                File.Delete(path);
            else
            {
                StreamWriter sw = File.CreateText(path);
                sw.Close();
                FileStream fs = File.OpenWrite(path);
                StreamWriter sb = new StreamWriter(fs, Encoding.Default);
                sb.WriteLine(textBox1.Text);
                sb.WriteLine(textBox2.Text);
                sb.WriteLine(textBox3.Text);
                sb.WriteLine(textBox4.Text);
                sb.WriteLine(textBox5.Text);
                sb.Close();
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            textBox1.Text = "";
            textBox2.Text = "";
            textBox3.Text = "";
            textBox4.Text = "";
            textBox5.Text = "";
            textBox6.Text = "";
            
        }

        private void button2_Click(object sender, EventArgs e)
        {
            int i;
            string mystr = "学号\t姓名\t性别\t年龄\t分数\r\n";
            FileStream fs = File.OpenRead(path);
            StreamReader sr = new StreamReader(fs, Encoding.Default);
            fs.Seek(0, SeekOrigin.Begin);
            while (sr.Peek() > -1)
            {
                for (i = 0; i < 5; i++)
                    mystr = mystr + sr.ReadLine() + "\t";
                mystr = mystr + "\r\n";
            }
            sr.Close();
            fs.Close();
            textBox6.Text = mystr;
        }
    }
}