例13.7 用getline函數讀入一行字符。
#include <iostream>
using namespace std;
int main( )
{char ch[20];
 cout<<″enter a sentence:″<<endl;
 cin>>ch;
 cout<<″The string read with cin is:″<<ch<<endl;
 cin.getline(ch,20,′/′);//讀19個字符或遇′/′結束
 cout<<″The second part is:″<<ch<<endl;
 cin.getline(ch,20);                              //讀19個字符或遇′/n′結束
 cout<<″The third part is:″<<ch<<endl;
 return 0;
}