结构类型的基本程序

来源：互联网发布：灰色的天空网络歌曲编辑：程序博客网时间：2024/06/14 07:50

1、

#include<iostream.h>main(){    //定义结构类型    struct    books    {    char   title[20];    char   author[15];    int    pages;    float  price;    } ;    //声明结构变量    struct books Zbk={"VC++ ","Zhang",295,35.5};     books Wbk;      //对结构变量的输出    cout<<"Zbk:"<<endl;    cout<<Zbk.title <<endl;    cout<<Zbk.author<<endl;    cout<<Zbk.pages<<endl;    cout<<Zbk.price<<endl;    cout<<"--------------------"<<endl;    //对结构成员的运算    Zbk.pages+=10;    Zbk.price+=0.5;    cout<<"Zbk.pages="<<Zbk.pages<<endl;    cout<<"Zbk.price="<<Zbk.price<<endl;    cout<<"--------------------"<<endl;    //对结构变量的输入输出    cout<<"Wbk.title =";    cin>>Wbk.title;    cout<<"Wbk.author=";    cin>>Wbk.author;    cout<<"Wbk.pages=";    cin>>Wbk.pages;    cout<<"Wbk.price=";    cin>>Wbk.price;    cout<<"Wbk:"<<endl;    cout<<Wbk.title <<endl;    cout<<Wbk.author<<endl;    cout<<Wbk.pages<<endl;    cout<<Wbk.price<<endl;    cout<<"--------------------"<<endl;    //结构变量之间的相互赋值    books temp;    temp=Wbk;    cout<<"temp:"<<endl;    cout<<temp.title<<endl;    cout<<temp.author<<endl;    cout<<temp.pages<<endl;    cout<<temp.price<<endl;}

2、

#include<iostream.h>main(){    int i;    //定义结构类型     struct student {           int  num;           char  name[10];           float maths;           float physics;           float chemistry;           double  total;    };     //声明结构数组st     student st[3];     //从键盘上为结构数组输入值      cout<<"    num  name     maths physics chemistry "<<endl;     for (i=0;i<3;i++)     {        cout<<i+1<<"   ";        cin>>st[i].num;        cin>>st[i].name;        cin>>st[i].maths;        cin>>st[i].physics;        cin>>st[i].chemistry;     }    //计算每个学生的总成绩    for (i=0;i<3;i++)         st[i].total=st[i].maths+st[i].physics+st[i].chemistry;    //输出结构数组各元素的值     for (i=0;i<3;i++)    {        cout<<"st["<<i<<"]:   ";        cout<<st[i].num<<'\t';        cout<<st[i].name<<'\t';        cout<<st[i].maths<<'\t';        cout<<st[i].physics<<'\t';        cout<<st[i].chemistry<<'\t';        cout<<st[i].total<<endl;     }}

3、

include<iostream.h>main(){    //定义结构类型    struct human {       char name[10];       int sex;       int age;    };    //声明结构变量和结构指针变量,并初始化    struct human x={"WangPing",1,30},*p=NULL;    //结构指针变量指向对象    p=&x;    //显示结构变量的值    cout<<"x.name="<<x.name<<endl;    cout<<"x.sex="<<x.sex<<endl;    cout<<"x.age="<<x.age<<endl;    //利用结构指针显示结构对象中的数据    cout<<"(*p).name="<<(*p).name<<endl;    cout<<"(*p).sex="<<(*p).sex<<endl;    cout<<"(*p).age="<<(*p).age<<endl;    cout<<"p->name="<<p->name<<endl;    cout<<"p->sex="<<p->sex<<endl;    cout<<"p->age="<<p->age<<endl;    //通过结构指针为结构对象输入数据    cout<<"name:";    cin>>(*p).name;    cout<<"sex:";    cin>>(*p).sex;    cout<<"age:";    cin>>(*p).age;    //显示结构变量的值    cout<<"x.name="<<x.name<<endl;    cout<<"x.sex="<<x.sex<<endl;    cout<<"x.age="<<x.age<<endl;}

4、

#include<iostream.h>main(){    //定义结构类型    struct human {       char name[10];       int sex;       int age;       };    //声明结构变量和结构指针,并初始化    struct human x={"WangPing",1,30},*p=&x;    //利用结构指针显示结构中的数据    cout<<"(*p).name="<<(*p).name<<endl;    cout<<"(*p).sex="<<(*p).sex<<endl;    cout<<"(*p).age="<<(*p).age<<endl;    cout<<"-------------------------"<<endl;    //利用new运算符为p分配内存    p=new human;    //从键盘上为p指向的结构对象赋值    cout<<"p->name=";    cin>>p->name;    cout<<"p->sex=";    cin>>p->sex;    cout<<"p->age=";    cin>>p->age;    cout<<"-------------------------"<<endl;    //显示p所指结构对象的值    cout<<"p->name="<<p->name<<endl;    cout<<"p->sex="<<p->sex<<endl;    cout<<"p->age="<<p->age<<endl;    cout<<"-------------------------"<<endl;    //显示结构变量的值    cout<<"x.name="<<x.name<<endl;    cout<<"x.sex="<<x.sex<<endl;    cout<<"x.age="<<x.age<<endl;    //释放p指向的内存    delete p;  }

5、

#include<iostream.h>main(){    //定义结构类型    struct human {       char name[10];       int sex;       int age;    };    //声明结构数组和结构指针变量,并初始化    human x[]={{"WeiPing",1,30},{"LiHua",1,25},{"LiuMin",0,23}},*p=NULL;    //用下标变量的输出结构数组的元素    for (int i=0;i<3;i++)    {        cout<<x[i].name<<'\t';        cout<<x[i].sex<<'\t';        cout<<x[i].age<<endl;    }    cout<<"----------------"<<endl;    //用结构指针输出结构数组的元素    for (p=x;p<=&x[2];p++)    {        cout<<p->name<<'\t';        cout<<p->sex<<'\t';        cout<<p->age<<endl;    }}

6、

#include<iostream.h>main(){    //定义date结构    struct date    {       int year;       int month;       int day;    };    //定义baby结构    struct baby {        int    num;        float   weight;        date   birthday;   // date为结构类型     };     //声明baby结构变量并初始化    baby b1={10001,10,{2002,12,25}};    //下列是baby结构变量b1的引用。    cout<<"b1.num="<<b1.num<<endl;    cout<<"b1.weight="<<b1.weight<<endl;    cout<<"b1.birthday.year="<<b1.birthday.year<<endl;    cout<<"b1.birthday.month="<<b1.birthday.month<<endl;    cout<<"b1.birthday.day="<<b1.birthday.day<<endl;    cout<<"--------------------------"<<endl;    //声明baby结构变量temp,并进行赋值运算    baby temp;    temp=b1;    cout<<"temp.num="<<temp.num<<endl;    cout<<"temp.weight="<<temp.weight<<endl;    cout<<"temp.birthday.year="<<temp.birthday.year<<endl;    cout<<"temp.birthday.month="<<temp.birthday.month<<endl;    cout<<"temp.birthday.day="<<temp.birthday.day<<endl;}

阅读全文

0 0