例题
例9.1
#include<stdio.h> int main() { struct student{//声明结构体类型 int num;//结构体成员 char name[20]; char sex; char add[20]; }student_1={30,"Zhao He Yan",'M',"Ha Er Bin"};//定义结构体变量初始化 printf("学号:%d\n姓名：%s\n性别:%c\n地址:%s\n",student_1.num,student_1.name,student_1.sex,student_1.add); }
例9.2
#include<stdio.h> int main() { struct student{ int num; char name[20]; float score; }stu1={30,"a",88},stu2={23,"b",56}; printf("成绩较高的是:\n"); if(stu1.score>stu2.score) printf("学号：%d\n姓名:%s\n分数:%6.2f",stu1.num,stu1.name,stu1.score); else if(stu1.score<stu2.score) printf("学号：%d\n姓名:%s\n分数:%6.2f",stu2.num,stu2.name,stu2.score); else { printf("学号：%d\n姓名:%s\n分数:%6.2f",stu1.num,stu1.name,stu1.score); printf("学号：%d\n姓名:%s\n分数:%6.2f",stu2.num,stu2.name,stu2.score); } }
例9.3
#include<stdio.h> #include<string.h> struct Perspon { 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; }
例9.4
#include<stdio.h> struct Student { int num; char name[20]; float score; }; int main() { struct Student stu[5]={{10101,"Zhang",78},{10103,"Wang",98.5},{10106,"Li",86}, {10108,"Ling",73.5},{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("%6d %8s %6.2f\n",stu[i].num,stu[i].name,stu[i].score); printf("\n"); return 0; }
例9.5
#include<stdio.h>
struct Student
{
int num;
char name[20];
float score;
};
int main()
{
struct Student stu[5]={{10101,"Zhang",78},{10103,"Wang",98.5},{10106,"Li",86},
{10108,"Ling",73.5},{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("%6d %8s %6.2f\n",stu[i].num,stu[i].name,stu[i].score);
printf("\n");
return 0;
}
例9.6
#include<stdio.h>
struct Student
{int num;
char name[20];
char sex;
int age;
};struct Student stu[3]={{10101,"Li Lin",'M',18},{10102,"Zhang Fang",'M',19},{10104,"Wang Min",'F',20}};
int main()
{struct Student *p;
printf("No. Name sex age\n");
for(p=stu;p<stu+3;p++)
printf("%5d%-20d%2c%4d\n",p->num,p->name,p->sex,p->age);
return 0;
}
}
例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("请输入个学生的信息：学号，姓名，三门课成绩：\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]); } } 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成绩最好的学生是：\n"); printf("学号：%d\姓名：%s\n三门课成绩：%5.1f,%5.1f,%5.1f\n平均成绩：%6.2f，stud.num,stud.name,stud.score[0],stud.score[1],stud.score[2],stud.aver"); }
请输出各学生的信息：学号、姓名、三门课成绩： 10101 li 78 89 98 10103 wang 98.5 87 69 10106 sun 88 76.5 89 成绩最高的学生是: 学号：10101 姓名:10485108 三门课成绩: 78.0, 89.0, 98.0 平均成绩: 88.33 -------------------------------- Process exited after 99.13 seconds with return value 0 请按任意键继续. .
