char2Wchar,Wchar2char，互转

//将 单字节char* 转换为 宽字节 wchar* inline wchar_t* AnsiToUnicode( const char* szStr ) { int nLen = MultiByteToWideChar( CP_ACP, MB_PRECOMPOSED, szStr, -1, NULL, 0 ); if (nLen == 0) {    return NULL; } wchar_t* pResult = new wchar_t[nLen]; MultiByteToWideChar( CP_ACP, MB_PRECOMPOSED, szStr, -1, pResult, nLen ); return pResult; } //---------------------------------------------------------------------------------- // 将 宽字节wchar_t* 转换 单字节char* inline char* UnicodeToAnsi( const wchar_t* szStr ) { int nLen = WideCharToMultiByte( CP_ACP, 0, szStr, -1, NULL, 0, NULL, NULL ); if (nLen == 0) {    return NULL; } char* pResult = new char[nLen]; WideCharToMultiByte( CP_ACP, 0, szStr, -1, pResult, nLen, NULL, NULL ); return pResult; }