txt数据处理

主要有两个功能

1.删除两个字符串及其中间的数据。

2.删除特定的字符串。

如图所示：

Program.cs:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;

namespace WinFormsApp1
{
    static class Program
    {
        /// <summary>
        ///  The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.SetHighDpiMode(HighDpiMode.SystemAware);
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

Form.cs:

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



namespace WinFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        

        private void Button1_Click(object sender, EventArgs e)
        {
            this.openFileDialog1.Filter = "txt文件(*.txt)|*.txt";
            if (this.openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                string PicFileName = this.openFileDialog1.FileName;
                this.imgList.Add(PicFileName);
               //  this.imageList1.Images.Add(Image.FromFile(PicFileName));
                textBox3.Text = PicFileName;
            }
        }

        private void TextBox3_TextChanged(object sender, EventArgs e)
        {

        }

        private void Button2_Click(object sender, EventArgs e)
        {
            this.openFileDialog1.Filter = "txt文件(*.txt)|*.txt";
            if (this.openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                string PicFileName = this.openFileDialog1.FileName;
                this.imgList.Add(PicFileName);
                //  this.imageList1.Images.Add(Image.FromFile(PicFileName));
                textBox4.Text = PicFileName; //另存为的路径
            }
        }

        //  public IOException e;
        public String str3;
        private string Linesplit(string str1,string str2) {

            
            int int1, int2;
            
            int1 = str1.IndexOf(str2);
            int2 = str2.Length;
            if (int2 <= 0 || int1 < 0 ){
                return str1;
            }
            try
            {
                str1 = str1.Remove(int1, int2);
            }
            catch (Exception e)
            {
                throw e;
            }
            //int1 = str1.IndexOf(str2);
            while (str1.IndexOf(str2) > 0)
            {
                str1 = Linesplit(str1,str2);
                
            }
            return str1;
        }
        private void Button3_Click(object sender, EventArgs e)
        {
            //IOException ea;
                try{
                //读取文件
                    StreamReader fsreader = new StreamReader(textBox3.Text,Encoding.Default);
                    String line;
                //检查另存为路径文件是否存在,否则创建该文件
                if (File.Exists(textBox4.Text)){
                    Console.WriteLine("{0} already exists", textBox4.Text);
                } else{ 
                    
                }
                //FileStream fs = new FileStream(textBox4.Text, FileMode.Create);
                StreamWriter fs = File.CreateText(textBox4.Text);

                while ((line = fsreader.ReadLine()) != null){
                    // Console.WriteLine(line.ToString());
                    //当从原始文档读取到值的时候
                    int int1,int2;
                    int1 = line.IndexOf(textBox1.Text);
                    int2 = -1;
                    if (textBox2.Text != "")
                    {
                        int2 = line.LastIndexOf(textBox2.Text);
                    }
                    
                    if ((int2 >= int1) && int1 > 0)
                    {
                        int2 = int2 - int1 + 1;
                        line = line.Remove(int1,int2);
                        //获得字节数组
                       // byte[] data = System.Text.Encoding.Default.GetBytes(line);
                        //开始写入
                        
                    }
                    line = Linesplit(line, textBox5.Text);
                    line = Linesplit(line, textBox6.Text);
                    line = Linesplit(line, textBox7.Text);
                    line = Linesplit(line, textBox8.Text);
                    line = Linesplit(line, textBox9.Text);
                    line = Linesplit(line, textBox10.Text);
                    //line.Replace(textBox5,"");
                    fs.WriteLine(line);
                }
                //清空缓冲区、关闭流
                fs.Flush();
                fs.Close();
                MessageBox.Show("已完成！");
            }
            
                catch (IOException ea)
                {
                    Console.WriteLine(ea.ToString());
                }
            

        }

    }
}

 Form1.Designer.cs:

namespace WinFormsApp1
{
    partial class Form1
    {
        /// <summary>
        ///  Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        ///  Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        ///  Required method for Designer support - do not modify
        ///  the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.textBox2 = new System.Windows.Forms.TextBox();
            this.textBox3 = new System.Windows.Forms.TextBox();
            this.button1 = new System.Windows.Forms.Button();
            this.label4 = new System.Windows.Forms.Label();
            this.textBox4 = new System.Windows.Forms.TextBox();
            this.label5 = new System.Windows.Forms.Label();
            this.button2 = new System.Windows.Forms.Button();
            this.button3 = new System.Windows.Forms.Button();
            this.label6 = new System.Windows.Forms.Label();
            this.textBox5 = new System.Windows.Forms.TextBox();
            this.textBox6 = new System.Windows.Forms.TextBox();
            this.textBox7 = new System.Windows.Forms.TextBox();
            this.textBox8 = new System.Windows.Forms.TextBox();
            this.textBox9 = new System.Windows.Forms.TextBox();
            this.textBox10 = new System.Windows.Forms.TextBox();
            this.label7 = new System.Windows.Forms.Label();
            this.label8 = new System.Windows.Forms.Label();
            this.label9 = new System.Windows.Forms.Label();
            this.label10 = new System.Windows.Forms.Label();
            this.label11 = new System.Windows.Forms.Label();
            this.label12 = new System.Windows.Forms.Label();
            this.label13 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(62, 37);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(226, 17);
            this.label1.TabIndex = 0;
            this.label1.Text = "删除原始文档中从‘文本1’到‘文本2’的内容";
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(62, 54);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(51, 17);
            this.label2.TabIndex = 1;
            this.label2.Text = "文本1：";
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(62, 100);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(51, 17);
            this.label3.TabIndex = 2;
            this.label3.Text = "文本2：";
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(62, 74);
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(609, 23);
            this.textBox1.TabIndex = 3;
            // 
            // textBox2
            // 
            this.textBox2.Location = new System.Drawing.Point(62, 120);
            this.textBox2.Name = "textBox2";
            this.textBox2.Size = new System.Drawing.Size(609, 23);
            this.textBox2.TabIndex = 4;
            // 
            // textBox3
            // 
            this.textBox3.Location = new System.Drawing.Point(62, 166);
            this.textBox3.Name = "textBox3";
            this.textBox3.Size = new System.Drawing.Size(559, 23);
            this.textBox3.TabIndex = 5;
            this.textBox3.TextChanged += new System.EventHandler(this.TextBox3_TextChanged);
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(627, 166);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(73, 22);
            this.button1.TabIndex = 6;
            this.button1.Text = "选择文件";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.Button1_Click);
            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(62, 146);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(68, 17);
            this.label4.TabIndex = 7;
            this.label4.Text = "原始文档：";
            // 
            // textBox4
            // 
            this.textBox4.Location = new System.Drawing.Point(62, 212);
            this.textBox4.Name = "textBox4";
            this.textBox4.Size = new System.Drawing.Size(559, 23);
            this.textBox4.TabIndex = 8;
            // 
            // label5
            // 
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(62, 192);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(68, 17);
            this.label5.TabIndex = 9;
            this.label5.Text = "最终文档：";
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(627, 213);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(73, 22);
            this.button2.TabIndex = 10;
            this.button2.Text = "选择路径";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.Button2_Click);
            // 
            // button3
            // 
            this.button3.Location = new System.Drawing.Point(62, 441);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(638, 40);
            this.button3.TabIndex = 11;
            this.button3.Text = "开始";
            this.button3.UseVisualStyleBackColor = true;
            this.button3.Click += new System.EventHandler(this.Button3_Click);
            // 
            // label6
            // 
            this.label6.AutoSize = true;
            this.label6.Location = new System.Drawing.Point(62, 247);
            this.label6.Name = "label6";
            this.label6.Size = new System.Drawing.Size(152, 17);
            this.label6.TabIndex = 12;
            this.label6.Text = "删除原始文档下列特定的值";
            // 
            // textBox5
            // 
            this.textBox5.Location = new System.Drawing.Point(109, 267);
            this.textBox5.Name = "textBox5";
            this.textBox5.Size = new System.Drawing.Size(609, 23);
            this.textBox5.TabIndex = 13;
            // 
            // textBox6
            // 
            this.textBox6.Location = new System.Drawing.Point(109, 296);
            this.textBox6.Name = "textBox6";
            this.textBox6.Size = new System.Drawing.Size(609, 23);
            this.textBox6.TabIndex = 14;
            // 
            // textBox7
            // 
            this.textBox7.Location = new System.Drawing.Point(109, 325);
            this.textBox7.Name = "textBox7";
            this.textBox7.Size = new System.Drawing.Size(609, 23);
            this.textBox7.TabIndex = 15;
            // 
            // textBox8
            // 
            this.textBox8.Location = new System.Drawing.Point(109, 354);
            this.textBox8.Name = "textBox8";
            this.textBox8.Size = new System.Drawing.Size(609, 23);
            this.textBox8.TabIndex = 16;
            // 
            // textBox9
            // 
            this.textBox9.Location = new System.Drawing.Point(109, 383);
            this.textBox9.Name = "textBox9";
            this.textBox9.Size = new System.Drawing.Size(609, 23);
            this.textBox9.TabIndex = 17;
            // 
            // textBox10
            // 
            this.textBox10.Location = new System.Drawing.Point(109, 412);
            this.textBox10.Name = "textBox10";
            this.textBox10.Size = new System.Drawing.Size(609, 23);
            this.textBox10.TabIndex = 18;
            // 
            // label7
            // 
            this.label7.AutoSize = true;
            this.label7.Location = new System.Drawing.Point(62, 273);
            this.label7.Name = "label7";
            this.label7.Size = new System.Drawing.Size(39, 17);
            this.label7.TabIndex = 19;
            this.label7.Text = "文本3";
            // 
            // label8
            // 
            this.label8.AutoSize = true;
            this.label8.Location = new System.Drawing.Point(62, 302);
            this.label8.Name = "label8";
            this.label8.Size = new System.Drawing.Size(39, 17);
            this.label8.TabIndex = 20;
            this.label8.Text = "文本4";
            // 
            // label9
            // 
            this.label9.AutoSize = true;
            this.label9.Location = new System.Drawing.Point(62, 418);
            this.label9.Name = "label9";
            this.label9.Size = new System.Drawing.Size(39, 17);
            this.label9.TabIndex = 21;
            this.label9.Text = "文本8";
            // 
            // label10
            // 
            this.label10.AutoSize = true;
            this.label10.Location = new System.Drawing.Point(62, 389);
            this.label10.Name = "label10";
            this.label10.Size = new System.Drawing.Size(39, 17);
            this.label10.TabIndex = 22;
            this.label10.Text = "文本7";
            // 
            // label11
            // 
            this.label11.AutoSize = true;
            this.label11.Location = new System.Drawing.Point(62, 360);
            this.label11.Name = "label11";
            this.label11.Size = new System.Drawing.Size(39, 17);
            this.label11.TabIndex = 23;
            this.label11.Text = "文本6";
            // 
            // label12
            // 
            this.label12.AutoSize = true;
            this.label12.Location = new System.Drawing.Point(62, 331);
            this.label12.Name = "label12";
            this.label12.Size = new System.Drawing.Size(39, 17);
            this.label12.TabIndex = 24;
            this.label12.Text = "文本5";
            // 
            // label13
            // 
            this.label13.AutoSize = true;
            this.label13.Location = new System.Drawing.Point(722, 464);
            this.label13.Name = "label13";
            this.label13.Size = new System.Drawing.Size(94, 17);
            this.label13.TabIndex = 25;
            this.label13.Text = "QQ:616943421";
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 17F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(889, 485);
            this.Controls.Add(this.label13);
            this.Controls.Add(this.label12);
            this.Controls.Add(this.label11);
            this.Controls.Add(this.label10);
            this.Controls.Add(this.label9);
            this.Controls.Add(this.label8);
            this.Controls.Add(this.label7);
            this.Controls.Add(this.textBox10);
            this.Controls.Add(this.textBox9);
            this.Controls.Add(this.textBox8);
            this.Controls.Add(this.textBox7);
            this.Controls.Add(this.textBox6);
            this.Controls.Add(this.textBox5);
            this.Controls.Add(this.label6);
            this.Controls.Add(this.button3);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.label5);
            this.Controls.Add(this.textBox4);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.textBox3);
            this.Controls.Add(this.textBox2);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.TextBox textBox2;
        private System.Windows.Forms.TextBox textBox3;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.OpenFileDialog openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
        private System.Windows.Forms.ImageList imageList1 = new System.Windows.Forms.ImageList();
        private System.Collections.ArrayList imgList = new System.Collections.ArrayList();
        private System.Windows.Forms.Label label4;
        private System.Windows.Forms.TextBox textBox4;
        private System.Windows.Forms.Label label5;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Button button3;
        private System.Windows.Forms.Label label6;
        private System.Windows.Forms.TextBox textBox5;
        private System.Windows.Forms.TextBox textBox6;
        private System.Windows.Forms.TextBox textBox7;
        private System.Windows.Forms.TextBox textBox8;
        private System.Windows.Forms.TextBox textBox9;
        private System.Windows.Forms.TextBox textBox10;
        private System.Windows.Forms.Label label7;
        private System.Windows.Forms.Label label8;
        private System.Windows.Forms.Label label9;
        private System.Windows.Forms.Label label10;
        private System.Windows.Forms.Label label11;
        private System.Windows.Forms.Label label12;
        private System.Windows.Forms.Label label13;
    }
}

解决方案下载：

链接: https://pan.baidu.com/s/1r5rGkTzcjNeWJxbRQf1w-Q 提取码: 93xa 复制这段内容后打开百度网盘手机App，操作更方便哦