#include<stdio.h>
int main()
{
struct Student
{
long int num;
char name[20];
char sex;
char addr[20];
 }
 a={10101,"lilin",‘M‘,"123 Bei Jing Road"};
 printf("num=%d\n,name=%s\n,sex=%c\n,addr=%s\n",a.num,a.name,a.sex,a.addr);
 return 0;
}
?
运行结果

num=10101 ,name=lilin ,sex=M ,addr=123 Bei Jing Road

-------------------------------- Process exited after 0.2219 seconds with return value 0 请按任意键继续. . .

 

9.2

?
#include<stdio.h>
int main()
{
    struct Student
    {
        int num;
        char name[20];
        float score;
    }
    student1,student2;
    scanf("%d,%s,%f",&student1.num,&student1.name,&student1.score);
    scanf("%d,%s,%f",&student2.num,&student2.name,&student2.score);
    printf("The higher score is:\n");
    if(student1.score>student2.score)
    printf("%d,%s,%f\n",student1.num,student1.name,student1.score);
    else
     if(student1.score<student2.score)
    printf("%d,%s,%f\n",student2.num,student2.name,student2.score);
    else
    {
        printf("%d,%s,%f\n",student1.num,student1.name,student1.score);
        printf("%d,%s,%f\n",student2.num,student2.name,student2.score);
    }
    return 0;
}
?
-------------------------------- Process exited after 0.2435 seconds with return value 0 请按任意键继续. . .

 

9.3

?
#include<string.h>
#include<stdio.h>
struct Person
{
    char name[20];
    int count;
}
leader[3]={{"LI",0},{"zhang,0"},{"sun",0}};
int main()
{
    int i,j;
    char leader_name[20];
    for(i=1;i<=10;i++)
    {
        scanf("%s",leader_name);
        for(j=0;j<3;j++)
        if(strcmp(leader_name,leader[j].name)==0) leader[j].count++;
    }
    printf("\nResult:\n");
    for(i=0;i<3;i++)
    printf("%5s,%d\n",leader[i].name,leader[i].count);
    return 0;
}
?
-------------------------------- Process exited after 0.3419 seconds with return value 0 请按任意键继续. . .

9.4

?
#include<stdio.h>
struct student
{
    int num;
    char name[20];
    float score;
};
int main()
{
    struct student stu[5]={{10101,"lili",78},{10103,"gygy",98.5},{10106,"fttf",86},{10108,"bbhh",73},{10110,"huhu",100}};
    struct student temp;
    int n=5;
    int i,j,k;
    printf("the order is:\n");
    for(i=0;i<n-1;i++)
    {k=i;
    for(j=i+1;j<n;j++)
    if(stu[j].score>stu[k].score)
    k=j;
    temp=stu[k];stu[k]=stu[i];stu[i]=temp;
    }
    for(i=0;i<n;i++)
    printf("%d\n,%s\n,%f\n",stu[i].num,stu[i].name,stu[i].score);
    return 0;
}
?
the order is: 10110 ,huhu ,100.000000 10103 ,gygy ,98.500000 10106 ,fttf ,86.000000 10101 ,lili ,78.000000 10108 ,bbhh ,73.000000

-------------------------------- Process exited after 0.203 seconds with return value 0 请按任意键继续. . .

 

9.5

?
#include<stdio.h>
#include<string.h>
int main()
{struct student
     long num;
     char name[20];
     char sex;
     float score;
};
struct student stu_1={10101,"Li Lin",‘M‘,89.5};
struct student *p;
p=&stu_1;
printf("%d\n,%s\n,%c\n",stu_1.num,,stu_1.name,stu_1.sex,stu_1.score);
printf("%d\n,%s\n,%c\n",stu_1.num,,stu_1.name,stu_1.sex,stu_1.score);
return 0;
}
?
-------------------------------- Process exited after 0.187 seconds with return value 0 请按任意键继续. . .

 

9.6

?
#include<stdio.h>
struct student
{
    int num;
    char name[20];
    char sex;
    int age;
};
int main()
{
    struct student stu[3]={{10101,"lili",78},{10103,"gygy",98.5},{10106,"fttf",86}};
    int main()
    {struct student *p;
    printf("No.  Name     sex age\n");
    for(p=stu;p<stu+3;p++)
    printf("%d\n,%s\n,%c\n,%d\n",p->num,p->name,p->sex,p->age);
    return 0;
}
}
?
-------------------------------- Process exited after 0.1857 seconds with return value 0 请按任意键继续. . .

 

9.7

?
#include <stdio.h>  
#define N 3  
struct Student  
{  
    int num;  
    char name[20];  
    float score[3];  
    float aver;  
};  
int main()
{
    void input(struct Student stu[]);
    struct Student max(struct Student stu[]);
    void print(struct Student stu);
    struct Student stu[N],*p=stu;
    input(p);
    print(max(p));
    return 0; 
}
void input(struct Student stu[])
{
    int i;
    printf("请输入各学生的信息：学号、姓名、三门学科的成绩：\n");
    for(i=0;i<N;i++)
    {
        scanf("%d %s %f %f %f",&stu[i].num,&stu[i].name,&stu[i].score[0],&stu[i].score[1],&stu[i].score[2]);
        stu[i].aver=(stu[i].score[0]+stu[i].score[1]+stu[i].score[2])/3.0;
     } 
}
struct Student max(struct Student stu[])
{
    int i,m=0;
    for(i=0;i<N;i++)
    if(stu[i].aver>stu[m].aver)m=i;
    return stu[m];
}
void print(struct Student stud)
{

    printf("\n成绩最高的学生是：\n");
    printf("学号：%d\n姓名：%s\n三门课成绩:%5.1f,%5.1f,%5.1f平均成绩:%6.2f\n",stud.num,stud.name,stud.score[0],stud.score[1],stud.score[2]);
}