LPCSTR char * LPCTSTR const char * 这两个都是支持UNICODE的 CString mfc的字符窜类 char* 字符指针 可以指向一个字符窜 char * p = "abc" char[] 字符数组 如果char a[10] = "abc" 可以表示一个字符窜 CHAR 单个字符 如‘a‘
#include<string> using namespace std; #include <COMDEF.H> { 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"); } }
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