????string??????????
string &insert(int p0?? const char *s);
string &insert(int p0?? const char *s?? int n);
string &insert(int p0??const string &s);
string &insert(int p0??const string &s?? int pos?? int n);
//?4????????p0λ?ò????????s??pos??????n?????
string &insert(int p0?? int n?? char c);//???????p0??????n?????c
iterator insert(iterator it?? char c);//??it?????????c?????????????????λ??
void insert(iterator it?? const_iterator first?? const_iterator last);//??it??????[first??last?????????
void insert(iterator it?? int n?? char c);//??it??????n?????c
????string??????????
????iterator erase(iterator first?? iterator last);//???[first??last???????????????????????????????λ??
????iterator erase(iterator it);//???it?????????????????????????λ??
????string &erase(int pos = 0?? int n = npos);//???pos?????n?????????????????????
????string?????????????
string????????????????????????iterator???????????????????????????????????????????????????鷶Χ??
??string::iterator??string::const_iterator????????????????const_iterator????????????????????????????????У?
const_iterator begin()const;
iterator begin(); //????string?????λ??
const_iterator end()const;
iterator end(); //????string??????????????λ??
const_iterator rbegin()const;
iterator rbegin(); //????string???????????λ??
const_iterator rend()const;
iterator rend(); //????string????????λ??????
rbegin??rend???????????????????????????????string::reverse_iterator??string::const_reverse_iterator???
????????????????
???????????ostringstream??istringstream????????#include <sstream>??????
???????磺
string input("hello??this is a test");
istringstream is(input);
string s1??s2??s3??s4;
is>>s1>>s2>>s3>>s4;//s1="hello??this"??s2="is"??s3="a"??s4="test"
ostringstream os;
os<<s1<<s2<<s3<<s4;
cout<<os.str();
???????????C++ string???????????????????????????е????????MFC?е?CString??????????????????????
????????????????Win32 ??ó?????????MFC?е??????????CString??
????1.???????????????"Properties”--->"Configuration Properties”--->“General”--->"Use of MFC"--->"Use MFC in a Static Library"??
???????????"Use Standard Windows Libraries"?????????
????2.???????????????????????#include <afxwin.h>?????磺??????stdafx.h???????????#include <afxwin.h>?????????????????????п??????
????CString??????????????????????????????????????????????????????С???????"Use Standard Windows Libraries" ???????
??????Release?汾???92kb?????"Use MFC in a Static Library"?????????Release?汾???192kb?????????100kb??????????????......