總結一:app
std::string ws2s(const std::wstring& ws) { std::string curLocale = setlocale(LC_ALL, NULL); // curLocale = "C"; setlocale(LC_ALL, "chs"); const wchar_t* _Source = ws.c_str(); size_t _Dsize = 2 * ws.size() + 1; char *_Dest = new char[_Dsize]; memset(_Dest,0,_Dsize); wcstombs(_Dest,_Source,_Dsize); std::string result = _Dest; delete []_Dest; setlocale(LC_ALL, curLocale.c_str()); return result; } std::wstring s2ws(const std::string& s) { setlocale(LC_ALL, "chs"); const char* _Source = s.c_str(); size_t _Dsize = s.size() + 1; wchar_t *_Dest = new wchar_t[_Dsize]; wmemset(_Dest, 0, _Dsize); mbstowcs(_Dest,_Source,_Dsize); std::wstring result = _Dest; delete []_Dest; setlocale(LC_ALL, "C"); return result; }
總結二:(推薦)ide
#include "stdafx.h" #include<string> #ifndef STRING2WSTRING_H #define STRING2WSTRING_H using namespace std; wstring string2wstring(string str); string wstring2string(wstring wstr); //將string轉換成wstring wstring string2wstring(string str) { wstring result; //獲取緩衝區大小,並申請空間,緩衝區大小按字符計算 int len = MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.size(), NULL, 0); TCHAR* buffer = new TCHAR[len + 1]; //多字節編碼轉換成寬字節編碼 MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.size(), buffer, len); buffer[len] = '\0'; //添加字符串結尾 //刪除緩衝區並返回值 result.append(buffer); delete[] buffer; return result; } //將wstring轉換成string string wstring2string(wstring wstr) { string result; //獲取緩衝區大小,並申請空間,緩衝區大小事按字節計算的 int len = WideCharToMultiByte(CP_ACP, 0, wstr.c_str(), wstr.size(), NULL, 0, NULL, NULL); char* buffer = new char[len + 1]; //寬字節編碼轉換成多字節編碼 WideCharToMultiByte(CP_ACP, 0, wstr.c_str(), wstr.size(), buffer, len, NULL, NULL); buffer[len] = '\0'; //刪除緩衝區並返回值 result.append(buffer); delete[] buffer; return result; } #endif // STRING2WSTRING_H