将网上朋友写的一下工具函数稍作更改封装成了C++类,方便以面向对象的方式编程
头文件:
#ifndef EVNHELPER_H #define EVNHELPER_H #include <string> #include <iostream> using namespace std; class EnvHelper { public: EnvHelper(); ~EnvHelper(); static string UnicodeToANSI( const wstring& str ); static wstring UTF8ToUnicode( const string& str ); static wstring ANSIToUnicode( const string& str ); static string UnicodeToUTF8( const wstring& str ); }; #endif
源文件:
#include "stdafx.h" #include <windows.h> #include <string> #include <iostream> #include "EnvHelper.h" using namespace std; EnvHelper::EnvHelper() { } EnvHelper::~EnvHelper() { } string EnvHelper::UnicodeToANSI( const wstring& str ) { char* pElementText; int iTextLen; // wide char to multi char iTextLen = WideCharToMultiByte( CP_ACP, 0, str.c_str(), -1, NULL, 0, NULL, NULL ); pElementText = new char[iTextLen + 1]; memset( ( void* )pElementText, 0, sizeof( char ) * ( iTextLen + 1 ) ); ::WideCharToMultiByte( CP_ACP, 0, str.c_str(), -1, pElementText, iTextLen, NULL, NULL ); string strText; strText = pElementText; delete[] pElementText; return strText; } wstring EnvHelper::UTF8ToUnicode( const string& str ) { int len = 0; len = str.length(); int unicodeLen = ::MultiByteToWideChar( CP_UTF8, 0, str.c_str(), -1, NULL, 0 ); wchar_t * pUnicode; pUnicode = new wchar_t[unicodeLen+1]; memset(pUnicode,0,(unicodeLen+1)*sizeof(wchar_t)); ::MultiByteToWideChar( CP_UTF8, 0, str.c_str(), -1, (LPWSTR)pUnicode, unicodeLen ); wstring rt; rt = ( wchar_t* )pUnicode; delete pUnicode; return rt; } wstring EnvHelper::ANSIToUnicode( const string& str ) { int len = 0; len = str.length(); int unicodeLen = ::MultiByteToWideChar( CP_ACP, 0, str.c_str(), -1, NULL, 0 ); wchar_t * pUnicode; pUnicode = new wchar_t[unicodeLen+1]; memset(pUnicode,0,(unicodeLen+1)*sizeof(wchar_t)); ::MultiByteToWideChar( CP_ACP, 0, str.c_str(), -1, (LPWSTR)pUnicode, unicodeLen ); wstring rt; rt = ( wchar_t* )pUnicode; delete pUnicode; return rt; } string EnvHelper::UnicodeToUTF8( const wstring& str ) { char* pElementText; int iTextLen; // wide char to multi char iTextLen = WideCharToMultiByte( CP_UTF8, 0, str.c_str(), -1, NULL, 0, NULL, NULL ); pElementText = new char[iTextLen + 1]; memset( ( void* )pElementText, 0, sizeof( char ) * ( iTextLen + 1 ) ); ::WideCharToMultiByte( CP_UTF8, 0, str.c_str(), -1, pElementText, iTextLen, NULL, NULL ); string strText; strText = pElementText; delete[] pElementText; return strText; }