标签：style http io os 使用 ar 文件 sp 2014
C#读写INI文件，需要用到两个API函数
WritePrivateProfileString
GetPrivateProfileString
需要特别注意的是：这两个函数中的*.ini文件地址要使用绝对地址
下面程序的功能，是在一个空文件test.ini中，写入一些属性，并读取
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace IniTest
{
/// <summary>
/// INI文件工具类
/// </summary>
class IniHelper
{
/// <summary>
/// 设定INI文件中的属性
/// </summary>
/// <param name="section">节</param>
/// <param name="key">键</param>
/// <param name="val">值</param>
/// <param name="filePath">INI文件的绝对地址</param>
/// <returns></returns>
[System.Runtime.InteropServices.DllImport("kernel32")]
private static extern long WritePrivateProfileString(
string section, string key, string val, string filePath);
/// <summary>
/// 读取INI文件中的属性
/// </summary>
/// <param name="section">节</param>
/// <param name="key">键</param>
/// <param name="def">默认值</param>
/// <param name="retVal">被存储到的StringBuilder</param>
/// <param name="size">最大字串截取长度</param>
/// <param name="filePath">INI文件的绝对地址</param>
/// <returns></returns>
[System.Runtime.InteropServices.DllImport("kernel32")]
private static extern int GetPrivateProfileString(
string section, string key, string def,
System.Text.StringBuilder retVal, int size, string filePath);
/// <summary>
/// INI文件的绝对路径
/// </summary>
public string Path;
/// <summary>
/// 读取的默认值
/// </summary>
public string DefValue;
/// <summary>
/// INI读写工具类
/// </summary>
/// <param name="path">INI文件绝对地址</param>
/// <param name="def">读取值的默认值</param>
public IniHelper(string path, string def = "")
{
System.IO.FileInfo fi = new System.IO.FileInfo(path);
if (!fi.Exists)
{
throw new Exception("文件不存在");
}
this.Path = fi.FullName;
this.DefValue = def;
}
/// <summary>
/// 设置INI文件的一个值
/// </summary>
/// <param name="section">节</param>
/// <param name="key">键</param>
/// <param name="value">值</param>
public void SetValue(string section, string key, object value)
{
WritePrivateProfileString(section, key, value.ToString(), this.Path);
}
/// <summary>
/// 获取INI文件的一个值
/// </summary>
/// <param name="section"></param>
/// <param name="key"></param>
/// <returns></returns>
public string GetValue(string section, string key)
{
StringBuilder sb = new StringBuilder(255);
int i = GetPrivateProfileString(
section, key, this.DefValue, sb, 255, this.Path);
return sb.ToString();
}
}
class Program
{
static void Main(string[] args)
{
IniHelper ih = new IniHelper("test.ini", "Default");
//设置INI文件中的值
ih.SetValue("Set1", "attr1", "1");
ih.SetValue("Set1", "attr2", 2L);
ih.SetValue("Set1", "attr3", 3f);
ih.SetValue("Set2", "attra", new StringBuilder("a"));
ih.SetValue("Set2", "attrb", ‘b‘);
//读取INI文件中的值
Console.WriteLine(ih.GetValue("Set1", "attr1"));
Console.WriteLine(ih.GetValue("Set1", "attr2"));
Console.WriteLine(ih.GetValue("Set1", "attr3"));
Console.WriteLine(ih.GetValue("Set2", "attra"));
Console.WriteLine(ih.GetValue("Set2", "attrb"));
//读取不存在的键值
Console.WriteLine(ih.GetValue("Setx", "attrx"));
Console.WriteLine("Done.");
Console.ReadLine();
}
}
}
程序运行结果
END
标签：style http io os 使用 ar 文件 sp 2014
原文地址：http://my.oschina.net/Tsybius2014/blog/326704
