第十四周 阅读项目 C++字符创的标准输入输出

(2) 有一个参数的get函数

[cpp]
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#include<iostream>
#include<cstdio>
using namespace std;
int main( )
{
char c;
cout<<"enter a sentence:"<<endl;
while(cin.get(c)) //读取一个字符赋给字符变量c，如果读取成功，cin.get(c)为真

cout.put(c);
cout<<"end"<<endl;
return 0;
}

#include<iostream>
#include<cstdio>
using namespace std;
int main( )
{
    char c;
    cout<<"enter a sentence:"<<endl;
    while(cin.get(c))  //读取一个字符赋给字符变量c，如果读取成功，cin.get(c)为真
        cout.put(c);
    cout<<"end"<<endl;
    return 0;
}

(3) 有3个参数的get函数

[cpp]
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#include<iostream>
using namespace std;
int main( )
{
char ch[20];
cout<<"enter a sentence:"<<endl;
cin.get(ch,10,'\n');//指定换行符为终止字符

cout<<ch<<endl;
return 0;
}

#include<iostream>
using namespace std;
int main( )
{
    char ch[20];
    cout<<"enter a sentence:"<<endl;
    cin.get(ch,10,'\n');//指定换行符为终止字符
    cout<<ch<<endl;
    return 0;
}

例7

[cpp]
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#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,'/');//读19个字符或遇'/'结束

cout<<"The second part is:"<<ch<<endl;
cin.getline(ch,20); //读19个字符或遇'/n'结束

cout<<"The third part is:"<<ch<<endl;
return 0;
}

#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,'/');//读19个字符或遇'/'结束
    cout<<"The second part is:"<<ch<<endl;
    cin.getline(ch,20);    //读19个字符或遇'/n'结束
    cout<<"The third part is:"<<ch<<endl;
    return 0;
}

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