CString str1 =_T(“123”);

int len = WideCharToMultiByte(CP_ACP,0,str1,-1,NULL,0,NULL,NULL);

char *ptxtTemp = new char[len +1];

WideCharToMultiByte(CP_ACP,0,str1,-1,ptxtTemp,len,NULL,NULL );

//…

delete[] ptxtTemp;

char *p =”test”;//方法一

CString str(p);

char * pFileName = “你好，世界！Hello,World”;

//計算char *陣列大小，以位元組為單位，一個漢字占兩個位元組

int charLen = strlen(pFileName);

//計算多位元組字元的大小，按字元計算。

int len = MultiByteToWideChar(CP_ACP,0,pFileName,charLen,NULL,0);

//為寬位元組字元陣列申請空間，陣列大小為按位元組計算的多位元組字元大小

TCHAR *buf = new TCHAR[len + 1];

//多位元組編碼轉換成寬位元組編碼

MultiByteToWideChar(CP_ACP,0,pFileName,charLen,buf,len);

buf[len] = ‘\0‘; //添加字串結尾，注意不是len+1

//將TCHAR陣列轉換為CString

CString pWideChar;

pWideChar.Append(buf);

//刪除緩衝區

delete []buf;