例13.14 将一组数据保存在字符数组中。

法一：

#include<iostream>
#include<sstream>//这是最新的头文件 
#include<cstring>
using namespace std;struct student
{int num;char name[20];float score;
};int main()
{student stud[3]={1001,"Li",78,1002,"Wang",89.5,1004,"Fang",90};ostringstream strout;for(int i=0;i<3;i++){strout<<stud[i].num<<stud[i].name<<stud[i].score;}strout<<ends;char c[40]={0};strcpy(c,strout.str().c_str());cout<<"array c:"<<endl<<c<<endl;return 0;
}

法二：

#include<iostream>
#include<sstream>//这是最新的头文件 
using namespace std;struct student
{int num;char name[20];float score;
};int main()
{student stud[3]={1001,"Li",78,1002,"Wang",89.5,1004,"Fang",90};ostringstream strout;for(int i=0;i<3;i++){strout<<stud[i].num<<stud[i].name<<stud[i].score;}strout<<ends;cout<<"array c:"<<endl<<strout.str()<<endl;return 0;
}

输出加空格法一：

#include<iostream>
#include<sstream>//这是最新的头文件 
#include<cstring>
using namespace std;struct student
{int num;char name[20];float score;
};int main()
{student stud[3]={1001,"Li",78,1002,"Wang",89.5,1004,"Fang",90};ostringstream strout;for(int i=0;i<3;i++){strout<<" "<<stud[i].num<<" "<<stud[i].name<<" "<<stud[i].score;}strout<<ends;char c[40]={0};strcpy(c,strout.str().c_str());cout<<"array c:"<<endl<<c<<endl;return 0;
}

输出加空格法二：

#include<iostream>
#include<sstream>//这是最新的头文件 
using namespace std;struct student
{int num;char name[20];float score;
};int main()
{student stud[3]={1001,"Li",78,1002,"Wang",89.5,1004,"Fang",90};ostringstream strout;for(int i=0;i<3;i++){strout<<" "<<stud[i].num<<" "<<stud[i].name<<" "<<stud[i].score;}strout<<ends;cout<<"array c:"<<endl<<strout.str()<<endl;return 0;
}