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c# 操作ini文件
原文:c# 操作ini文件
INI文件是一种按照特点方式排列的文本文件。每一个INI文件构成都非常类似,由若干段落(section)组成,在每个带括号的标题下面,是若干个以单个单词开头的关键词(keyword)和一个等号,等
号右边的就是关键字对应的值(value)。其一般形式如下:
[section1]
keyword1=value1
keyword2=value2
keyword3=value3
[section2]
keyword1=value1
keyword2=value2
号右边的就是关键字对应的值(value)。其一般形式如下:
[section1]
keyword1=value1
keyword2=value2
keyword3=value3
[section2]
keyword1=value1
keyword2=value2
class Program
{
[DllImport("kernel32")]
private static extern long WritePrivateProfileString (string section ,string key , string val ,string filepath);
//参数说明:section:INI文件中的段落;key:INI文件中的关键字;val:INI文件中关键字的数值;filePath:INI文件的完整的路径和名称。
[DllImport ("kernel32")]
private static extern int GetPrivateProfileString (string section , string key , string def , StringBuilder retVal , int size , string filePath ) ;
//参数说明:section:INI文件中的段落名称;key:INI文件中的关键字;def:无法读取时候时候的缺省数值;retVal:读取数值;size:数值的大小;filePath:INI文件的完整路径和名称。
public static void Main(string[] args)
{
string section="database";
string key="sql";
//string value="http://www.mamicode.com/server.;database=pubs;uid=sa;pwd=";
string fileName="d:\\config.ini";
try
{
//写入ini节点
//WritePrivateProfileString(section,key,value,fileName);
//读取ini节点
StringBuilder sb=new StringBuilder(255);
GetPrivateProfileString(section,key,"无法读取",sb,255,fileName);
Console.WriteLine(sb.ToString());
}catch(Exception ex)
{
Console.WriteLine(ex.ToString());
}
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
}
{
[DllImport("kernel32")]
private static extern long WritePrivateProfileString (string section ,string key , string val ,string filepath);
//参数说明:section:INI文件中的段落;key:INI文件中的关键字;val:INI文件中关键字的数值;filePath:INI文件的完整的路径和名称。
[DllImport ("kernel32")]
private static extern int GetPrivateProfileString (string section , string key , string def , StringBuilder retVal , int size , string filePath ) ;
//参数说明:section:INI文件中的段落名称;key:INI文件中的关键字;def:无法读取时候时候的缺省数值;retVal:读取数值;size:数值的大小;filePath:INI文件的完整路径和名称。
public static void Main(string[] args)
{
string section="database";
string key="sql";
//string value="http://www.mamicode.com/server.;database=pubs;uid=sa;pwd=";
string fileName="d:\\config.ini";
try
{
//写入ini节点
//WritePrivateProfileString(section,key,value,fileName);
//读取ini节点
StringBuilder sb=new StringBuilder(255);
GetPrivateProfileString(section,key,"无法读取",sb,255,fileName);
Console.WriteLine(sb.ToString());
}catch(Exception ex)
{
Console.WriteLine(ex.ToString());
}
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
}
整理出ini文件操作辅且类
/// <summary>
/// 读写INI文件的类。
/// </summary>
public class INIHelper
{
// 读写INI文件相关。
[DllImport("kernel32.dll", EntryPoint = "WritePrivateProfileString", CharSet = CharSet.Ansi)]
public static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
[DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileString", CharSet = CharSet.Ansi)]
public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);
[DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileSectionNames", CharSet = CharSet.Ansi)]
public static extern int GetPrivateProfileSectionNames(IntPtr lpszReturnBuffer, int nSize, string filePath);
[DllImport("KERNEL32.DLL ", EntryPoint = "GetPrivateProfileSection", CharSet = CharSet.Ansi)]
public static extern int GetPrivateProfileSection(string lpAppName, byte[] lpReturnedString, int nSize, string filePath);
/// <summary>
/// 向INI写入数据。
/// </summary>
/// <PARAM name="Section">节点名。</PARAM>
/// <PARAM name="Key">键名。</PARAM>
/// <PARAM name="Value">值名。</PARAM>
public static void Write(string Section, string Key, string Value, string path)
{
WritePrivateProfileString(Section, Key, Value, path);
}
/// <summary>
/// 读取INI数据。
/// </summary>
/// <PARAM name="Section">节点名。</PARAM>
/// <PARAM name="Key">键名。</PARAM>
/// <PARAM name="Path">值名。</PARAM>
/// <returns>相应的值。</returns>
public static string Read(string Section, string Key, string path)
{
StringBuilder temp = new StringBuilder(255);
int i = GetPrivateProfileString(Section, Key, "", temp, 255, path);
return temp.ToString();
}
/// <summary>
/// 读取一个ini里面所有的节
/// </summary>
/// <param name="sections"></param>
/// <param name="path"></param>
/// <returns></returns>
public static int GetAllSectionNames(out string[] sections, string path)
{
int MAX_BUFFER = 32767;
IntPtr pReturnedString = Marshal.AllocCoTaskMem(MAX_BUFFER);
int bytesReturned = GetPrivateProfileSectionNames(pReturnedString, MAX_BUFFER, path);
if (bytesReturned == 0)
{
sections = null;
return -1;
}
string local = Marshal.PtrToStringAnsi(pReturnedString, (int)bytesReturned).ToString();
Marshal.FreeCoTaskMem(pReturnedString);
//use of Substring below removes terminating null for split
sections = local.Substring(0, local.Length - 1).Split(‘\0‘);
return 0;
}
/// <summary>
/// 得到某个节点下面所有的key和value组合
/// </summary>
/// <param name="section"></param>
/// <param name="keys"></param>
/// <param name="values"></param>
/// <param name="path"></param>
/// <returns></returns>
public static int GetAllKeyValues(string section, out string[] keys, out string[] values, string path)
{
byte[] b = new byte[65535];
GetPrivateProfileSection(section, b, b.Length, path);
string s = System.Text.Encoding.Default.GetString(b);
string[] tmp = s.Split((char)0);
ArrayList result = new ArrayList();
foreach (string r in tmp)
{
if (r != string.Empty)
result.Add(r);
}
keys = new string[result.Count];
values = new string[result.Count];
for (int i = 0; i < result.Count; i++)
{
string[] item = result[i].ToString().Split(new char[] { ‘=‘ });
if (item.Length == 2)
{
keys[i] = item[0].Trim();
values[i] = item[1].Trim();
}
else if (item.Length == 1)
{
keys[i] = item[0].Trim();
values[i] = "";
}
else if (item.Length == 0)
{
keys[i] = "";
values[i] = "";
}
}
return 0;
}
}
/// 读写INI文件的类。
/// </summary>
public class INIHelper
{
// 读写INI文件相关。
[DllImport("kernel32.dll", EntryPoint = "WritePrivateProfileString", CharSet = CharSet.Ansi)]
public static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
[DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileString", CharSet = CharSet.Ansi)]
public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);
[DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileSectionNames", CharSet = CharSet.Ansi)]
public static extern int GetPrivateProfileSectionNames(IntPtr lpszReturnBuffer, int nSize, string filePath);
[DllImport("KERNEL32.DLL ", EntryPoint = "GetPrivateProfileSection", CharSet = CharSet.Ansi)]
public static extern int GetPrivateProfileSection(string lpAppName, byte[] lpReturnedString, int nSize, string filePath);
/// <summary>
/// 向INI写入数据。
/// </summary>
/// <PARAM name="Section">节点名。</PARAM>
/// <PARAM name="Key">键名。</PARAM>
/// <PARAM name="Value">值名。</PARAM>
public static void Write(string Section, string Key, string Value, string path)
{
WritePrivateProfileString(Section, Key, Value, path);
}
/// <summary>
/// 读取INI数据。
/// </summary>
/// <PARAM name="Section">节点名。</PARAM>
/// <PARAM name="Key">键名。</PARAM>
/// <PARAM name="Path">值名。</PARAM>
/// <returns>相应的值。</returns>
public static string Read(string Section, string Key, string path)
{
StringBuilder temp = new StringBuilder(255);
int i = GetPrivateProfileString(Section, Key, "", temp, 255, path);
return temp.ToString();
}
/// <summary>
/// 读取一个ini里面所有的节
/// </summary>
/// <param name="sections"></param>
/// <param name="path"></param>
/// <returns></returns>
public static int GetAllSectionNames(out string[] sections, string path)
{
int MAX_BUFFER = 32767;
IntPtr pReturnedString = Marshal.AllocCoTaskMem(MAX_BUFFER);
int bytesReturned = GetPrivateProfileSectionNames(pReturnedString, MAX_BUFFER, path);
if (bytesReturned == 0)
{
sections = null;
return -1;
}
string local = Marshal.PtrToStringAnsi(pReturnedString, (int)bytesReturned).ToString();
Marshal.FreeCoTaskMem(pReturnedString);
//use of Substring below removes terminating null for split
sections = local.Substring(0, local.Length - 1).Split(‘\0‘);
return 0;
}
/// <summary>
/// 得到某个节点下面所有的key和value组合
/// </summary>
/// <param name="section"></param>
/// <param name="keys"></param>
/// <param name="values"></param>
/// <param name="path"></param>
/// <returns></returns>
public static int GetAllKeyValues(string section, out string[] keys, out string[] values, string path)
{
byte[] b = new byte[65535];
GetPrivateProfileSection(section, b, b.Length, path);
string s = System.Text.Encoding.Default.GetString(b);
string[] tmp = s.Split((char)0);
ArrayList result = new ArrayList();
foreach (string r in tmp)
{
if (r != string.Empty)
result.Add(r);
}
keys = new string[result.Count];
values = new string[result.Count];
for (int i = 0; i < result.Count; i++)
{
string[] item = result[i].ToString().Split(new char[] { ‘=‘ });
if (item.Length == 2)
{
keys[i] = item[0].Trim();
values[i] = item[1].Trim();
}
else if (item.Length == 1)
{
keys[i] = item[0].Trim();
values[i] = "";
}
else if (item.Length == 0)
{
keys[i] = "";
values[i] = "";
}
}
return 0;
}
}
c# 操作ini文件
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