我的C#程序集 --文件解析_c#中文件解析-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_59564970/article/details/125307356

这段C#代码实现了读取指定路径的文本文件，解析文件内容，并将解析后的结果写入到另一个文件中。主要涉及文件操作、字符串处理和条件判断。代码首先读取源文件，然后根据文件内容判断是否包含特定字符，进行相应的字符串拼接与筛选，最后将处理结果写入目标文件。

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分享一段今天写的C#代码

代码实现的功能

1、读取文件

2、解析文件，并将结果输入到另一个文件

代码如下：

using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using NPOI.SS.UserModel;
using System.Linq;
using System.Text;
using System.IO;
class MyClass
{
    static void Main(string[] args)
    {
        string fileName = @"D:\123.txt";
        List<string> str = ReadTxtFile(fileName);
        string path = @"D:\\456.txt";
        //创建StreamWriter 类的实例
        StreamWriter streamWriter = new StreamWriter(path);
        foreach (var s in str)
        {
            streamWriter.WriteLine(s);
        }
        //刷新缓存
        streamWriter.Flush();
        //关闭流
        streamWriter.Close();
    }
    public static List<string> ReadTxtFile(string fileName)
    {
        List<string> allLines = new List<string>();
        StreamReader sr = null;
        string line = string.Empty;
        int flag = 0;
        string strings1 = null;
        string strings2 = null;
        try
        {
            if (!string.IsNullOrEmpty(fileName))
            {
                sr = new StreamReader(fileName, Encoding.Default);
                while (!sr.EndOfStream)
                {
                    line = sr.ReadLine();
                    if (!string.IsNullOrEmpty(line))
                    {  
                        if (line.Contains('\"'))
                        {
                            if (flag == 0)
                            {
                                if (line.Contains(@"\"))
                                {
                                    string[] hang = line.Split(@"\");
                                    strings1 = hang[hang.Length - 1];
                                }
                                if (line.Contains(@"/"))
                                {
                                    string[] hang = line.Split(@"/");
                                    strings1 = hang[hang.Length - 1];
                                }
                            }
                            if (flag == 1)
                            {
                                if (line.Contains(@"\"))
                                {
                                    string[] hang = line.Split(@"\");
                                    strings2 = hang[hang.Length - 1];
                                }
                                if (line.Contains(@"/"))
                                {
                                    string[] hang = line.Split(@"/");
                                    strings2 = hang[hang.Length - 1];
                                }
                            }
                            flag++;
                            if (flag==2)
                            {
                                if (strings1 == strings2)
                                {
                                    allLines.Add(strings1.Trim());
                                }
                                else
                                {
                                    allLines.Add((strings1+"  "+ strings2).Trim());
                                }
                                flag = 0;
                                strings1 = null;
                                strings2 = null;
                            }
                        }
                        else if (line.Split(@"D:\").Length >= 3)
                        {
                            string[] strings = line.Split(@"D:\");
                            string string4 = strings[1];
                            string string5 = strings[2];
                            string string6 = string4.Split(@"\")[string4.Split(@"\").Length -1];
                            string string7 = string5.Split(@"\")[string5.Split(@"\").Length -1];
                            if (string6== string7)
                            {
                                allLines.Add(string6.Trim());
                            }
                            else
                            {
                                allLines.Add((string6 + "  " + string7).Trim());
                            }
                        }
                        else
                        {
                            if (flag == 1)
                            {
                                if (line.Contains(@"\"))
                                {
                                    string[] hang = line.Split(@"\");
                                    strings2 = hang[hang.Length - 1];
                                }
                                if (line.Contains(@"/"))
                                {
                                    string[] hang = line.Split(@"/");
                                    strings2 = hang[hang.Length - 1];
                                }
                            }
                            else if (line.Contains(@"\"))
                            {
                                string[] hang = line.Split(@"\");
                                string strings = hang[hang.Length - 1];
                                allLines.Add(strings.Trim());
                            }
                            else if (line.Contains(@"/"))
                            {
                                string[] hang = line.Split(@"/");
                                string strings = hang[hang.Length - 1];
                                allLines.Add(strings.Trim());
                            }
                            else
                            {
                                allLines.Add("");
                            }
                        }
                    }
                    else
                    {
                        allLines.Add("");
                    }                    
                }
            }
            return allLines;
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            if (sr != null)
            {
                sr.Close();
            }
        }
    }
}