解释:

• 直观的调用形式是什么意思
  以减少键盘输入和见文知意为准则的计划方式，把长函数名变为符号。用符号来表示操作

• 潜规则
  在配置ini访问中的潜规则是
  1. Wiki上对ini的定义
      INI文件有节的观点节用 [] 包围,类似数据中的表名称,如

  [startup]

  名称/值对,类似数据库表中的字段,如

  TargetIP=10.0.0.1

  注释, 以";"为注释的开始，到行尾，如

  MenuOne=File...    ; 菜单的第一项文字描述

  2. Windows系统中操作ini文件时有#扫尾的行是疏忽的,如:

  #对打印机的设置

• 满足各类数据,在ini中经常应用的数据有两种,字符串和整型数据,满足所有数据类型明显不现实,可以在之后根据不同须要进行扩展

1.  读取

CIniAccessor accessor(_T("config.ini"));
std::wstring strMenuOne = accessor[_T("startup")][_T("MenuOne")](_T("DefaultMenuItem"));

2. 写入

CIniAccessor accessor(_T("config.ini"));
accessor[_T("startup")][_T("TargetIP")] = _T("10.0.0.100");

3. 更新

CIniAccessor accessor(_T("config.ini"));
accessor.Update();  // 从磁盘上更新
accessor.Commit();      // 写入磁盘

上面是数据结构

每日一道理
无知者为梦想中的虚幻而苦苦等待，换回的不是所求的，而是岁月在脸上留下的印痕，一事无成的人一生便是虚度。生活中，与其花时间去等待，不如加快步伐去追寻理想，试着与时间赛跑，也许身躯、心理会感到劳累，但这样的生活毕竟是充实的。

1. 基础类

   typedef struct tagAccessorData
   {union VALUETYPE{LONG longValue;TCHAR * pszValue;}value;enum{TYPE_EMPTY, TYPE_LONG, TYPE_CHAR}valuetype;tagAccessorData():valuetype(TYPE_EMPTY){}
   }ACCESSORDATA;

2. 辅助工具类

   class CCoAccessorImpl:public ACCESSORDATA
   {
   private:    TCHAR m_szTemp[30];
   public:CCoAccessorImpl(){valuetype = TYPE_EMPTY;value.longValue = 0;}CCoAccessorImpl(const CCoAccessorImpl & acc){valuetype = acc.valuetype;if(acc.valuetype == TYPE_CHAR){value.pszValue = new TCHAR[_tcslen(acc.value.pszValue) + 1];ZeroMemory(value.pszValue, sizeof(TCHAR) * (_tcslen(acc.value.pszValue) + 1));_tcscpy(value.pszValue, acc.value.pszValue);}else{value.longValue = acc.value.longValue;}}CCoAccessorImpl(const LONG lValue){valuetype = TYPE_LONG;value.longValue = lValue;}CCoAccessorImpl(LPCTSTR lpszValue){valuetype = TYPE_CHAR;value.pszValue = new TCHAR[_tcslen(lpszValue) + 1];ZeroMemory(value.pszValue, sizeof(TCHAR) * (_tcslen(lpszValue) + 1));_tcscpy(value.pszValue, lpszValue);}~CCoAccessorImpl(){if(valuetype == TYPE_CHAR) delete [] value.pszValue;}CCoAccessorImpl & operator = (const CCoAccessorImpl& acc){if(valuetype == TYPE_CHAR) delete [] value.pszValue;value.longValue = 0;valuetype = acc.valuetype;if(acc.valuetype == TYPE_CHAR){value.pszValue = new TCHAR[_tcslen(acc.value.pszValue) + 1];ZeroMemory(value.pszValue, sizeof(TCHAR) * (_tcslen(acc.value.pszValue) + 1));_tcscpy(value.pszValue, acc.value.pszValue);}else{value.longValue = acc.value.longValue;}return *this;}CCoAccessorImpl & operator = (const LONG lValue){if(valuetype == TYPE_CHAR) delete [] value.pszValue;valuetype = TYPE_LONG;value.longValue = lValue;return *this;}CCoAccessorImpl & operator = (LPCTSTR lpszValue){if(valuetype == TYPE_CHAR) delete [] value.pszValue;valuetype = TYPE_CHAR;value.pszValue = new TCHAR[_tcslen(lpszValue) + 1];ZeroMemory(value.pszValue, sizeof(TCHAR) * (_tcslen(lpszValue) + 1));_tcscpy(value.pszValue, lpszValue);return *this;}operator LPCTSTR (){       switch(valuetype){      case TYPE_LONG: return _ltot(value.longValue, m_szTemp, 10);case TYPE_CHAR: return value.pszValue;}return _T("");}operator LONG (){       switch(valuetype){case TYPE_LONG:case TYPE_EMPTY:return value.longValue;}return _ttol(value.pszValue);}CCoAccessorImpl operator ()(LPCTSTR lpsz) //default value{if(valuetype == TYPE_EMPTY) return CCoAccessorImpl(lpsz);return *this;}CCoAccessorImpl operator ()(LONG lValue) //default value{if(valuetype == TYPE_EMPTY) return CCoAccessorImpl(lValue);return *this;}};
   typedef std::basic_string<TCHAR> TCharArray;struct less
   {bool operator()(const TCharArray& _Left, const TCharArray& _Right) const{  return _tcsicmp(_Left.c_str(), _Right.c_str()) < 0;}
   };template<class ValueType, BOOL bSensitive>
   class CKeyValueArray:public std::map<TCharArray, ValueType, less>
   {
   public:CKeyValueArray(){}~CKeyValueArray(){}ValueType & operator[](TCharArray charArray){if(!bSensitive) _tcsupr((TCHAR*)charArray.data());return std::map<TCharArray, ValueType, less>::operator[](charArray);}
   };
   // 读文件操作
   template<class Storage>
   struct iniparser
   {BOOL operator()(Storage & store, LPCTSTR lpszFilePath){HANDLE hFile = CreateFile(lpszFilePath,               // file to openGENERIC_READ,          // open for readingFILE_SHARE_READ,       // share for readingNULL,                  // default securityOPEN_EXISTING,         // existing file onlyFILE_ATTRIBUTE_NORMAL, // normal fileNULL);                 // no attr. templateif (hFile == INVALID_HANDLE_VALUE) {             return FALSE; }TCHAR sz[2] = {0};DWORD dwRead = 0;TCharArray tcaLine;TCharArray tcaSectionName;struct foo{static void parse(Storage & store, TCharArray & tcaSectionName, TCharArray & tcaLine){if(!tcaLine.size()) return;// parse []TCHAR szComment[MAX_PATH] = {0};if(tcaLine.at(0) == _T('#')) return;TCharArray sSec;if(_stscanf(tcaLine.c_str(), _T("[%[^]]]"), (TCHAR*)sSec.assign(MAX_PATH,0).data())){tcaSectionName = sSec;}else{// parse key = valueTCHAR szKey[MAX_PATH] = {0};TCHAR szValue[MAX_PATH] = {0};if(2 == _stscanf(tcaLine.c_str(), _T("%[^=]=%[^\0]"), szKey, szValue))                  {store[tcaSectionName][szKey] = szValue;}}}};while(ReadFile(hFile, sz, sizeof(TCHAR),&dwRead, NULL)){if(!dwRead) break;if(!(sz[0] == _T('\r') || sz[0] == _T('\n'))) {tcaLine.push_back(sz[0]);continue;}foo::parse(store, tcaSectionName, tcaLine);tcaLine.clear();tcaLine.reserve();         }CloseHandle(hFile);foo::parse(store, tcaSectionName, tcaLine); return TRUE;}
   };
   // 写文件操作
   template<class Storage>
   struct inipersistor
   {BOOL operator()(Storage & store, LPCTSTR lpszFilePath){HANDLE hFile = CreateFile(lpszFilePath,               // file to openGENERIC_WRITE,          // open for readingFILE_SHARE_WRITE,       // share for readingNULL,                  // default securityOPEN_ALWAYS,         // existing file onlyFILE_ATTRIBUTE_NORMAL, // normal fileNULL);                 // no attr. templateif (hFile == INVALID_HANDLE_VALUE) {             return FALSE; }for(Storage::iterator it = store.begin();it != store.end();it++){TCharArray tcaSectionName = (*it).first;Storage::mapped_type & kva = (*it).second;DWORD dwWritten = 0;WriteFile(hFile, _T("["), sizeof(TCHAR), &dwWritten, NULL);          WriteFile(hFile, tcaSectionName.c_str(), sizeof(TCHAR) * tcaSectionName.size(), &dwWritten, NULL);WriteFile(hFile, _T("]\r\n"), sizeof(TCHAR) * 3, &dwWritten, NULL);for(Storage::mapped_type::iterator itKeyVal = kva.begin();itKeyVal != kva.end();itKeyVal++){TCharArray tcaKey = (*itKeyVal).first;TCharArray tcaVal = (*itKeyVal).second;WriteFile(hFile, tcaKey.c_str(), sizeof(TCHAR) * tcaKey.size(), &dwWritten, NULL);WriteFile(hFile, _T("="), sizeof(TCHAR), &dwWritten, NULL);      WriteFile(hFile, tcaVal.c_str(), sizeof(TCHAR) * tcaVal.size(), &dwWritten, NULL);WriteFile(hFile, _T("\r\n"), sizeof(TCHAR) * 2, &dwWritten, NULL);}}CloseHandle(hFile);return TRUE;}
   };

3. 访问类

   template<class ValueType = CCoAccessorImpl,    BOOL bSensitive = FALSE,class Parser  = iniparser<std::map<TCharArray, CKeyValueArray<ValueType,bSensitive>,less > >,class Persistor = inipersistor<std::map<TCharArray, CKeyValueArray<ValueType,bSensitive>,less > >
   >
   class TIniAccessor
   {
   public:private:Parser _parser;Persistor _persistor;TCharArray m_szFileName;
   public:TIniAccessor(LPCTSTR lpsz):_parser(Parser()),_persistor(Persistor()){m_szFileName = lpsz;_parser(m_sectionarray, m_szFileName.c_str());}BOOL Update(){return _parser(m_sectionarray, m_szFileName.c_str());}BOOL Commit(LPCTSTR lpszSaveIniFile = NULL){TCharArray tca = m_szFileName;if(lpszSaveIniFile) tca = lpszSaveIniFile;return _persistor(m_sectionarray, tca.c_str());}~TIniAccessor(){}
   private:    typedef std::map<TCharArray, CKeyValueArray<ValueType,bSensitive>, less> SectionArray;SectionArray m_sectionarray;
   public: CKeyValueArray<ValueType,bSensitive> & operator [](TCharArray charArray){if(!bSensitive) _tcsupr((TCHAR*)charArray.data());return m_sectionarray[charArray];}
   };

4. 访问类

   typedef TIniAccessor<> CIniAccessor;