utf8转换成ansi编码_ansi乱码

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1、windows平台下

#ifdef _WIN32

int CParserIni::ansi2utf8(const string& ansiStr, string& utf8Str) { int ret = kNoError; do{ //CP_ACP(ANSI字符集） if (ansiStr.empty()) BREAK_WITH_ERROR(kInvalidParameter); //现将本地代码页转换成utf16 int wlen = MultiByteToWideChar(CP_ACP, 0, ansiStr.c_str(), -1, NULL, 0); if (wlen == 0) BREAK_WITH_ERROR(kConvertError); wchar_t *pwBuf = new wchar_t[wlen + 1]; memset(pwBuf, 0, sizeof(wchar_t)*(wlen + 1)); if (MultiByteToWideChar(CP_ACP, 0, ansiStr.c_str(), ansiStr.length(), pwBuf, wlen)==0) BREAK_WITH_ERROR(kConvertError); //再将utf16转换utf8 int len = WideCharToMultiByte(CP_UTF8, 0, pwBuf, -1, NULL, NULL, NULL, NULL); if (len == 0) BREAK_WITH_ERROR(kConvertError); char *pBuf = new char[len + 1]; memset(pBuf, 0, len + 1); if (WideCharToMultiByte(CP_UTF8, 0, pwBuf, wlen, pBuf, len, NULL, NULL) == 0) BREAK_WITH_ERROR(kConvertError);

utf8Str = pBuf; delete[] pwBuf; delete []pBuf; pwBuf = NULL; pBuf = NULL;

} while (0);

return ret; }

int CParserIni::utf82ansi(const string& utf8Str, string& ansiStr) { int ret = kNoError;

do{ //将utf8转成utf16（wchar_t) if (utf8Str.empty()) BREAK_WITH_ERROR(kInvalidParameter); int wlen = MultiByteToWideChar(CP_UTF8, 0, utf8Str.c_str(), -1, NULL, NULL); if (wlen == 0) BREAK_WITH_ERROR(kConvertError); wchar_t *pwBuf = new wchar_t[wlen + 1]; memset(pwBuf, 0, sizeof(wchar_t)*(wlen + 1)); if (MultiByteToWideChar(CP_UTF8, 0, utf8Str.c_str(), utf8Str.length(), pwBuf, wlen) == 0) BREAK_WITH_ERROR(kConvertError);

//将wchar_t转换成ANSI int len = WideCharToMultiByte(CP_ACP, 0, pwBuf, -1, NULL, NULL, NULL, NULL); if (len == 0) BREAK_WITH_ERROR(kConvertError); char *pBuf = new char[len + 1]; memset(pBuf, 0, len + 1); if (WideCharToMultiByte(CP_ACP, 0, pwBuf, wlen, pBuf, len, NULL, NULL)==0) BREAK_WITH_ERROR(kConvertError);

ansiStr = pBuf; delete[] pwBuf; delete[] pBuf; pwBuf = NULL; pwBuf = NULL;

} while (0);

return ret; }

#endif

2、linux平台下

mbstowcs() wcstombs()

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