C++的String与UF8互转
農碼一生 人气:0UTF8_To_String
#include<Stringapiset.h> #include <iostream> std::string UTF8_To_String(const std::string& str) { int nwLen = MultiByteToWideChar(CP_UTF8, 0, str.c_str(), -1, NULL, 0); wchar_t* pwBuf = new wchar_t[nwLen + 1];//一定要加1,不然会出现尾巴 memset(pwBuf, 0, nwLen * 2 + 2); MultiByteToWideChar(CP_UTF8, 0, str.c_str(), str.length(), pwBuf, nwLen); int nLen = WideCharToMultiByte(CP_ACP, 0, pwBuf, -1, NULL, NULL, NULL, NULL); char* pBuf = new char[nLen + 1]; memset(pBuf, 0, nLen + 1); WideCharToMultiByte(CP_ACP, 0, pwBuf, nwLen, pBuf, nLen, NULL, NULL); std::string retStr = pBuf; delete[]pBuf; delete[]pwBuf; pBuf = NULL; pwBuf = NULL; return retStr; }
String_To_UTF8
#include<Stringapiset.h> #include <iostream> std::string String_To_UTF8(const std::string& str) { int nwLen = ::MultiByteToWideChar(CP_ACP, 0, str.c_str(), -1, NULL, 0); wchar_t* pwBuf = new wchar_t[nwLen + 1];//一定要加1,不然会出现尾巴 ZeroMemory(pwBuf, nwLen * 2 + 2); ::MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.length(), pwBuf, nwLen); int nLen = ::WideCharToMultiByte(CP_UTF8, 0, pwBuf, -1, NULL, NULL, NULL, NULL); char* pBuf = new char[nLen + 1]; ZeroMemory(pBuf, nLen + 1); ::WideCharToMultiByte(CP_UTF8, 0, pwBuf, nwLen, pBuf, nLen, NULL, NULL); std::string retStr(pBuf); delete[]pwBuf; delete[]pBuf; pwBuf = NULL; pBuf = NULL; return retStr; }
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