C# 操作Ini文件-Toy模板网

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public class IniHelper
 {
     [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
     private static extern uint GetPrivateProfileSectionNames(IntPtr lpszReturnBuffer, uint nSize, string lpFileName);
     [DllImport("kernel32")]
     private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);

     [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
     private static extern uint GetPrivateProfileString(string lpAppName, string lpKeyName, string lpDefault, [In, Out] char[] lpReturnedString, uint nSize, string lpFileName);

     [DllImport("kernel32")]
     private static extern int GetPrivateProfileString(string section, string key, string def,StringBuilder retVal, int size, string filePath);
     string path;
     public IniHelper(string path)
     {
         this.path = path;
     }
     /// <summary>
     /// 读取INI文件中所有节点名称(Section)
     /// </summary>
     /// <returns></returns>
     public string[] GetAllSections()
     {
         uint MAX_BUFFER = 32767;    //默认为32767
         string[] sections = new string[0];      //返回值
         //申请内存
         IntPtr pReturnedString = Marshal.AllocCoTaskMem((int)MAX_BUFFER * sizeof(char));
         uint bytesReturned = GetPrivateProfileSectionNames(pReturnedString, MAX_BUFFER, path);
         if (bytesReturned != 0)
         {
             //读取指定内存的内容
             string local = Marshal.PtrToStringAuto(pReturnedString, (int)bytesReturned).ToString();
             //每个节点之间用\0分隔,末尾有一个\0
             sections = local.Split(new char[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
         }
         //释放内存
         Marshal.FreeCoTaskMem(pReturnedString);
         return sections;
     }
     /// <summary>
     /// 读取指定Section下所有Key名称
     /// </summary>
     /// <param name="iniFile"></param>
     /// <param name="section"></param>
     /// <returns></returns>
     public string[] GetAllKeys(string section)
     {
         const int SIZE = 1024 * 10;    //默认为32767
         string[] value = new string[0];
         char[] chars = new char[SIZE];   //返回值
         uint bytesReturned = GetPrivateProfileString(section, null, null, chars, SIZE, path);
         if (bytesReturned != 0)
         {
             value = new string(chars).Split(new char[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
         }
         chars = null;
         return value;
     }
     /// <summary>
     /// Ini读取
     /// </summary>
     /// <param name="section"></param>
     /// <param name="key"></param>
     /// <param name="value"></param>
     public void Write(string section, string key, string value)
     {
         WritePrivateProfileString(section, key, value, path);
     }
     /// <summary>
     /// Ini写入
     /// </summary>
     /// <param name="section"></param>
     /// <param name="key"></param>
     /// <returns></returns>

     public string Read(string section, string key)
     {
         StringBuilder temp = new StringBuilder(255);

         GetPrivateProfileString(section, key, "", temp, 255, path);
         return temp.ToString();
     }
 }