1.c#读写Ini文件①增加区字段， ②读取区字段， ③删除区， ④删除区字段

配置IniHelper.cs

有对ini文件的增删改查操作：
①增加区字段，
②读取区字段，
③删除区，
④删除区字段

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

//以后默认放入的文件路径为启动文件所在的目录下

public class IniHelper
{
    
    
    /// <summary>
    /// 文件名,如 cameral.ini，文件存在debug下的config文件夹中
    /// </summary>
    public string FileName {
    
     get; set; }

    [DllImport("kernel32")]
    private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
    [DllImport("kernel32")]
    private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);


    /// <summary>
    /// 不存在文件夹则创建
    /// </summary>
    /// <param name="path">文件夹绝对路径</param>
    private void CreateDirectoryIfNotExists(string path)
    {
    
    
        if (!Directory.Exists(path))
        {
    
    
            Directory.CreateDirectory(path);
        }
    }

    /// <summary>
    /// 写入数据
    /// </summary>
    /// <param name="Section">区</param>
    /// <param name="Key">键</param>
    /// <param name="Value">值</param>
    public void SetValue(string Section, string Key, string Value)
    {
    
    
        string path = Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory,"config",this.FileName);
        CreateDirectoryIfNotExists(Path.GetDirectoryName(path));
        WritePrivateProfileString(Section, Key, Value, path);
    }

    /// <summary>
    /// 读取数据
    /// </summary>
    /// <param name="Section">区</param>
    /// <param name="Key">键</param>
    /// <returns>读取到的数据</returns>
    public string GetValue(string Section, string Key)
    {
    
    
        string path = Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory,"config",this.FileName);
        CreateDirectoryIfNotExists(Path.GetDirectoryName(path));
        StringBuilder temp = new StringBuilder(500);    //  缓存空间--长度500
        //下面的500指的是读取500个长度放到缓存空间temp中，换句话说temp的长度应当>=下面的500
        int i = GetPrivateProfileString(Section, Key, "", temp, 500, path);    
        return temp.ToString();
    }

    /// <summary>
    /// 删除区
    /// </summary>
    /// <param name="Section"></param>
    public void DeleteSection(string Section)
    {
    
    
        string path = Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, "config", this.FileName);
        CreateDirectoryIfNotExists(Path.GetDirectoryName(path));
        WritePrivateProfileString(Section, null, null, path);
    }

    /// <summary>
    /// 删除字段
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Key"></param>
    public void DeleteKey(string Section, string Key)
    {
    
    
        string path = Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, "config", this.FileName);
        CreateDirectoryIfNotExists(Path.GetDirectoryName(path));
        WritePrivateProfileString(Section, Key, null, path);
    }


}

下载

链接: 下载