例13.9 peek函數(shù)和putback函數(shù)的用法。
#include <iostream>
using namespace std;
int main( )
{char c[20];
 int ch;
 cout<<″please enter a sentence:″<<endl;
 cin.getline(c,15,′/′);
 cout<<″The first part is:″<<c<<endl;
 ch=cin.peek( );//觀看當(dāng)前字符
 cout<<″The next character(ASCII code) is:″<<ch<<endl;
 cin.putback(c[0]);             //將′I′插入到指針?biāo)柑?
 cin.getline(c,15,′/′);
 cout<<″The second part is:″<<c<<endl;
 return 0;
}