CString与char之间的转换

1、多字符集设置下：
CString To char*:
1)、
CString str; 
char buf = str.GetBuffer();
2)、
CString str;
char buf = (LPSTR)(LPCSTR)str;


char To CString
1)、
char buf;
CString str(buf);



2、Unicode字符集下：
CString To char:
1)、
CString st =_T(“123”);  
int len =WideCharToMultiByte(CP_ACP,0,str,-1,NULL,0,NULL,NULL);  
char buf =new char[len +1];  
WideCharToMultiByte(CP_ACP,0,str,-1,buf,len,NULL,NULL );  

  
//…  
delete[] buf;


char To CString
1)、
char buf;
CString str(buf);




3、方法：

static std::string Unicode2ANSI(LPCWSTR lpszSrc)

{
std::string sResult;
if (lpszSrc != NULL)
{
int  nANSILen = WideCharToMultiByte(CP_ACP, 0, lpszSrc, -1, NULL, 0, NULL, NULL);
char pANSI = new char[nANSILen + 1];
if (pANSI != NULL)
{
ZeroMemory(pANSI, nANSILen + 1);
WideCharToMultiByte(CP_ACP, 0, lpszSrc, -1, pANSI, nANSILen, NULL, NULL);
sResult = pANSI;
delete[] pANSI;
}
}
return sResult;

}



static std::wstring ANSI2Unicode(LPCSTR lpszSrc)

{
std::wstring sResult;
if (lpszSrc != NULL)
{
int nUnicodeLen = MultiByteToWideChar(CP_ACP, 0, lpszSrc, -1, NULL, 0);
LPWSTR pUnicode = new WCHAR[nUnicodeLen + 1];
if (pUnicode != NULL)
{
ZeroMemory((void)pUnicode, (nUnicodeLen + 1) * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, lpszSrc,-1, pUnicode, nUnicodeLen);
sResult = pUnicode;
delete[] pUnicode;
}
}
return sResult;

}