#include <iostream> 
#include <Windows.h> 
  
int main() 
{ 
    LPCTSTR  lpCChar; 
  
    LPSTR lpStr="Hello"; 
    int sizeNeeded = MultiByteToWideChar(CP_UTF8, 0, lpStr, -1, NULL, 0); 
   wchar_t* decodedStr = new wchar_t[sizeNeeded ]; 
   MultiByteToWideChar(CP_UTF8, 0, lpStr, -1, decodedStr, sizeNeeded ); 
  
    lpCChar=decodedStr;//L"Hello";//TEXT("Hello"); 
    std::cout<<"Address = "<<lpCChar<<std::endl; 
  
    lpCChar=L"John"; 
    std::cout<<"Address = "<<lpCChar<<std::endl; 
  
    const WCHAR wchar[5] = L"相等相等";  
    *lpCChar=wchar[0]; 
  
    getchar(); 
    return 0; 
};