unicode string和ansi string的转换函数及获取程序运行路径的代码

#pragma once
#include <string>

namespace stds {
class tool {
public:
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;
}

std::wstring get_exeute_path() {
TCHAR* _buffer = _tgetcwd(NULL, 0);
TCHAR exeFullPath[MAX_PATH]={0};
GetModuleFileName(NULL, exeFullPath, MAX_PATH);
std::wstring sPath(exeFullPath);

std::string::size_type p_begin = sPath.find_last_of(TEXT("/\")) + 1;
std::wstring sPath2 = sPath.replace(p_begin, sPath.length() - p_begin, TEXT(""));
return sPath2;
}
};
};