ANSI 和Unicode 编码

https://github.com/cocos2d-x/cocos2dx-win8/blob/master/cocos2dx/platform/CCCommon.cpp

 

std::wstring CCUtf8ToUnicode(const char * pszUtf8Str, unsigned len/* = -1*/)

{

    std::wstring ret;

    do

    {

        if (! pszUtf8Str) break;

// get UTF8 string length

if (-1 == len)

{

len = strlen(pszUtf8Str);

}

        if (len <= 0) break;

// get UTF16 string length

int wLen = MultiByteToWideChar(CP_UTF8, 0, pszUtf8Str, len, 0, 0);

if (0 == wLen || 0xFFFD == wLen) break;

// convert string 

        wchar_t * pwszStr = new wchar_t[wLen + 1];

        if (! pwszStr) break;

        pwszStr[wLen] = 0;

        MultiByteToWideChar(CP_UTF8, 0, pszUtf8Str, len, pwszStr, wLen + 1);

        ret = pwszStr;

        CC_SAFE_DELETE_ARRAY(pwszStr);

    } while (0);

    return ret;

}

std::string CCUnicodeToUtf8(const wchar_t* pwszStr)

{

std::string ret;

do

{

if(! pwszStr) break;

size_t len = wcslen(pwszStr);

if (len <= 0) break;

size_t convertedChars = 0;

char * pszUtf8Str = new char[len*3 + 1];

WideCharToMultiByte(CP_UTF8, 0, pwszStr, len+1, pszUtf8Str, len*3 + 1, 0, 0);

ret = pszUtf8Str;

CC_SAFE_DELETE_ARRAY(pszUtf8Str);

}while(0);

return ret;

}