c++ Unicode转UTF-8 & 宽字节转UTF8 & string转wstring & Utf8ToAnsi
//多字节字符项目(ansi)显示网页传来的数据(utf-8)
void Utf8ToAnsi(const char* lpcszStr, char* lpwszStr)
{
DWORD dwMinSize;
WCHAR* strTmp;
dwMinSize = MultiByteToWideChar(CP_UTF8, 0, lpcszStr, -1, NULL, 0);
strTmp = new WCHAR[dwMinSize];
MultiByteToWideChar(CP_UTF8, 0, lpcszStr, -1, strTmp, dwMinSize);
int targetLen = WideCharToMultiByte(CP_ACP, 0, (LPWSTR)strTmp, -1, (char*)lpwszStr, 0, NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, (LPWSTR)strTmp, -1, (char*)lpwszStr, targetLen, NULL, NULL);
}
//这么写不太好使 改一下
std::string Utf8ToAnsi(const char* lpcszStr)
{
DWORD dwMinSize;
WCHAR* strTmp;
dwMinSize = MultiByteToWideChar(CP_UTF8, 0, lpcszStr, -1, NULL, 0);
strTmp = new WCHAR[dwMinSize];
MultiByteToWideChar(CP_UTF8, 0, lpcszStr, -1, strTmp, dwMinSize);
const int size = sizeof(lpcszStr);
//std::cout << "sizeof " << sizeof(lpcszStr) << std::endl;
//std::cout << "strlen " << strlen(lpcszStr) << std::endl;
char lpwszStr[size];
int targetLen = WideCharToMultiByte(CP_ACP, 0, (LPWSTR)strTmp, -1, lpwszStr, 0, NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, (LPWSTR)strTmp, -1, lpwszStr, targetLen, NULL, NULL);
return lpwszStr;
}