CString strName;

char * pcName;

char cName[20];//1个字节,-128 到 127 或者 0 到 255

unsigned short sName;

ACHAR * paName；

TCHAR*ptName;

wchar_t *pwName;//2 或 4 个字节,一个宽字节:typedef wchar_t short int;

double dName；//8字节,+/- 1.7e +/- 308 (~15 个数字)

int nName;//4字节,-2147483648 到 2147483647

std::wstring wsName;

std::string ssName;

 

LPCTSTR 可当做CString 处理

LPCTSTR判空

LPCTSTR lpName;if (lpName!= NULL && lpName[0] != _T('\0')){	//不为空;}

 

(1)CString转unsigned short：

CString strName;unsigned short sName;sName = _ttoi(strNAme);

（2）CString转化char[20]

(3)CString转TCHAR*

CString strName;TCHAR*ptName;ptName = strName.GetBuffer();

（4）char[20]转化ACHAR*

char cName[20];ACHAR * paName；paName = _T("cName");

若以上操作不管用就定义一个CString，通过CString作为中间量转化

char cName[20];CString strName;strName = cName；ACHAR * paName；paName = strName.GetBuffer();

（5）CString转化double、long

CString strName;double dName；dName = _tstof(strName);

CString strName;long lName;lName = _ttol(strName);

（6）CString转化int

CString strName;int nName;nName = _ttoi(strName);

（7）int转CString

int nName;CString strName;strName. Format(_T("%d"), nName);

（8）std::wstring转CString

std::wstring wsName;CString strName;strName  = wsName.c_str();

(9)CString转std::wstring

CString strName;std::wstring wsName;wsName = strName. GetString();

(10)std::string转CString

std::string ssName;CString strName;strName = ssName.c_str()；

（11）CString转std::string

CString strName;CStringA stra( strName .GetBuffer(0));std::string ssName(stra.GetBuffer(0));stra.ReleaseBuffer();

unicode时，先转为非unicode. : 

CString strName;std::string sstrConn;sstrConn = CT2A(strConn.GetBuffer());

（12） std::string 转化Char*

std::string ssName;char * pcName = new char(20);pcName  = ssName.data();pcName  = ssName.c_str();

（13） CString转wchar_t *

CString strName;wchar_t *pwName;pwName = strName.AllocSysString();