VC编程，常用字符串操作

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CString strCString="ABC";
char strchar[256],*pstr;

pstr=(LPSTR)(LPCTSTR)strCString;//CString---->char*
strcpy(strchar,(LPSTR)(LPCTSTR)strCString);//CString---->char[]

_bstr_t strbstr=pstr;//char*---->_bstr_t
WCHAR *strWCHAR=strbstr;//b_str_t--->UNICODE

strbstr=strWCHAR;
pstr=strbstr; //UNICODE---->char*

strCString="10";
int istr=atoi((LPSTR)(LPCTSTR)strCString);//CString、char[]、char*------>int
strCString.Format("%d",istr);//int----->CString
sprintf(strchar,"%d",istr);//int----->char[]

pstr=new char[256];//字符串申请空间
strcpy(pstr,"ABC");//字符串赋值
delete []pstr;//字符串释放

string strstring="ABC";
pstr=(char*)strstring.c_str();//string---->char*

strCString="2003-10-27 6:24:37";//CString--->COleDateTime
COleVariant vtime(strCString);
vtime.ChangeType(VT_DATE);
COleDateTime time4=vtime;

COleDateTime time1(1977,4,16,2,2,2);//COleDataTime--->CTime
SYSTEMTIME systime;
VariantTimeToSystemTime(time1, &systime);
CTime tm(systime);

time_t time2=tm.GetTime();//CTime--->time_t
COleDateTime time3(time2);//time_t--->COleDateTime

//判断字符串是否是某种类型
CString sValue("123.1");
COleVariant vValue(sValue);

BOOL bStrIsFloat = (SUCCEEDED(VariantChangeType(&vValue, &vValue, 0, VT_R8)) && sValue.Find('.') != -1);
if(bStrIsFloat)
{
AfxMessageBox("浮点");
}