抄书

No.10101
name:Li Lin
esx:M
address:123 Beijing Road

--------------------------------
Process exited after 0.9249 seconds with return value 0
请按任意键继续. . .

9.1.3

#include<stdio.h>
int main()
{struct Student
{long int num;
char name[20];
char sex;
char addr[20];
}a={10101,"Li Lin",'M',"123 Beijing Road"};
printf("No.%ld\nname:%s\nesx:%c\naddress:%s\n",a.num,a.name,a.sex,a.addr);
return 0;
}

 9.1.3

1 tang 99
2 kai  100
The higher score is:
2   kai   100.00

--------------------------------
Process exited after 30.04 seconds with return value 0
请按任意键继续. . .

#include<stdio.h>
int main()
{
    struct student{
        int num;
        char name[20];
        float score;
    };
    struct student 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   %6.2f\n",student1.num,student1.name,student1.score);
    else if(student2.score>student1.score)
          printf("%d   %s   %6.2f\n",student2.num,student2.name,student2.score);
    else{
        printf("%d   %s   %6.2f\n",student1.num,student1.name,student1.score);
        printf("%d   %s   %6.2f\n",student2.num,student2.name,student2.score);
    }
    return 0;
}

9.1.2

#include<stdio.h>
#include<string.h>
struct Person
{
    char name[20];
    int count;
}   leader[3]={"1",0,"2",0,"3",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;
}

 

1
2
3
1
1
3
2
1
2
1

Result:
    1:5
    2:3
    3:2

--------------------------------
Process exited after 19.02 seconds with return value 0
请按任意键继续. . .

9.2.1

#include<stdio.h>
#include<stdlib.h> 
struct Student
{
    int num;
    char name[20];
    float score;
};
int main()
{
    struct Student stu[5]={{10101,"zhang",78},{10103,"wang",98},{10106,"li",86},{10108,"ling",73},{10110,"sun",100}};
    struct Student temp;
    const 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,%s,%d",stu[i].num,stu[i].name,stu[i].score);
    printf("\n");
    return 0;
}

the order is:
10110,sun,010103,wang,010106,li,010101,zhang,010108,ling,0

--------------------------------
Process exited after 0.08779 seconds with return value 0
请按任意键继续. . .

9.3.1

#include<stdio.h>
#include<string.h>
main()
{struct Student
{long num;
char name[20];
char sex;
float score;
};
struct Student stu_1;//定义struct student类型的变量stu_1 
struct Student *p;//定义指向struct student类型数据的指针变量p 
p=&stu_1;//p指向stu—1 
stu_1.num=10101;//对结构体变量的成员赋值 
strcpy(stu_1.name,"li lin");//用字符串复制函数给stu_1.name赋值 
stu_1.sex='M';
stu_1.score=89;
printf("NO.:%ld\nname:%s\nsex:%c\nscore:%d\n",stu_1.num,stu_1.name,stu_1.sex,stu_1.score);
printf("NO.:%ld\nname:%s\nsex:%c\nscore:%d\n",(*p).num,(*p).name,(*p).sex,(*p).score);
return 0;
}

NO.Name   sex age
10101,zhang,M,7810103,wang,M,9810106,li,M,86
--------------------------------
Process exited after 0.4277 seconds with return value 0
请按任意键继续. . .

9.3.2

#include<stdio.h>
#include<stdlib.h> 
struct Student//声明结构体类型 struct person 
{
    int num;
    char name[20];
    char sex;
    int age;
};
struct Student stu[3]={{10101,"zhang",'M',78},{10103,"wang",'M',98},{10106,"li",'M',86}};//定义结构体数组并初始化 
main()
{struct Student *p;//定义指向struct student类型数据的指针变量p 
printf("NO.Name   sex age\n");
for(p=stu;p<stu+3;p++)
printf("%d,%s,%c,%d",p->num,p->name,p->sex,p->age);
return 0;
}

NO.:10101
name:li lin
sex:M
score:0
NO.:10101
name:li lin
sex:Mscore:0
 
--------------------------------
Process exited after 0.4299 seconds with return value 0
请按任意键继续. . .

9.3.3

#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]);
}

请输入各学生的信息：学号、姓名、三门学科的成绩：
1 tang 20 20 20
2 kai 30 30 30
3 hong 40 40 40

成绩最高的学生是：
学号：3
姓名：hong
三门课成绩: 40.0, 40.0, 40.0平均成绩:  0.00

--------------------------------
Process exited after 28.32 seconds with return value 0
请按任意键继续. . .

我觉得代码还是自己打出来的  好，照着打 还总遗漏东西   何况自己编了，总是忘记打“；”号