Question

如何将string转化成wchar

Answer 1

测试环境： vs2008
开发语言：C++
#include <iostream>
#include <windows.h>
#include <string>

// wchar_t to string
void Wchar_tToString(std::string& szDst, wchar_t *wchar)
{
wchar_t * wText = wchar;
DWORD dwNum = WideCharToMultiByte(CP_OEMCP,NULL,wText,-1,NULL,0,NULL,FALSE);// WideCharToMultiByte的运用
char *psText; // psText为char*的临时数组，作为赋值给std::string的中间变量
psText = new char[dwNum];
WideCharToMultiByte (CP_OEMCP,NULL,wText,-1,psText,dwNum,NULL,FALSE);// WideCharToMultiByte的再次运用
szDst = psText;// std::string赋值
delete []psText;// psText的清除