cocos2d学习记录(二)-中文显示

在显示中文时候，labelWithString会出现乱码，原来要传入utf-8格式的字符串进去，于是在网上找了解决办法，如下：

方法一：只能用于win32平台

std::string WStrToUTF8ForWin32(const wstring& text)

{

int asciisize = ::WideCharToMultiByte(CP_UTF8, 0, text.c_str(), text.size(), NULL, 0, NULL, NULL);

if (asciisize == ERROR_NO_UNICODE_TRANSLATION || asciisize == 0)

{

return string();

}

char* resultstring = new char[asciisize];

int convresult = ::WideCharToMultiByte(CP_UTF8, 0, text.c_str(), text.size(), resultstring, asciisize, NULL, NULL);

if (convresult != asciisize)

{

return string();

}

std::string buffer(resultstring, convresult);

delete[] resultstring;

return buffer;

}

方法二：可以跨平台

std::string WStrToUTF8(const wstring& text)

{

std::string buffer;

buffer.clear();

for (size_t i = 0; i < text.size(); i++)

{

wchar_t w = text[i];

if (w <= 0x7f)

buffer.push_back((char)w);

else if (w <= 0x7ff)

{

buffer.push_back(0xc0| ((w >> 6)& 0x1f));

buffer.push_back(0x80| (w & 0x3f));

}

else if (w <= 0xffff)

{

buffer.push_back(0xe0| ((w >> 12)& 0x0f));

buffer.push_back(0x80| ((w >> 6) & 0x3f));

buffer.push_back(0x80| (w & 0x3f));

}

else if (sizeof(wchar_t) > 2 && w <= 0x10ffff)

{

buffer.push_back(0xf0| ((w >> 18)& 0x07)); // wchar_t 4-bytes situation

buffer.push_back(0x80| ((w >> 12)& 0x3f));

buffer.push_back(0x80| ((w >> 6) & 0x3f));

buffer.push_back(0x80| (w & 0x3f));

}

else

buffer.push_back('?');

}

return buffer;

}

返回得到string字符串