10-1 輸入三名學生的資訊并輸出
#include <stdio.h>
#include <string.h>
struct student{
long num;
char name[20];
int age;
char sex;
int score;
};
int main(){
struct student stu[3];
int i;
for(i=0;i<3;i++){
printf("enter the data of student[%d]\r\n",i);
scanf("%ld,%s%d,%c,%d",&stu[i].num,&stu[i].name,&stu[i].age,&stu[i].sex,&stu[i].score);
}
printf("\n num\t name\t age sex score\n");
for(i=0;i<3;i++){
printf("\n%ld\t%s\t%d%4c%5d",stu[i].num,stu[i].name,stu[i].age,stu[i].sex,stu[i].score);
}
printf("\n");
return 0;
}
/*
enter the data of student[0]
2000025,wangli
18,f,86
enter the data of student[1]
2000035,yeqing
20,f,99
enter the data of student[2]
2000048,liubo
19,f,100
num name age sex score
2000025 wangli 18 f 86
2000035 yeqing 20 f 99
2000048 liubo 19 f 100
Press any key to continue
*/
10-2 統計候選人得票數
#include <stdio.h>
#include <string.h>
struct person{
char name[20];
int count;
}leader[3]={"hu",0,"li",0,"ma",0};
int main(){
int i,j;
char leader_name[20];
for(i=0;i<=5;i++){
scanf("%s",leader_name);
for(j=0;j<3;j++){
if(strcmp(leader_name,leader[j].name)==0)
leader[j].count++;
}
}
for(j=0;j<3;j++){
printf("\r\n%s : %d\r\n",leader[j].name,leader[j].count);
}
return 0;
}
/*
li
li
li
ma
hu
hu
hu : 2
li : 3
ma : 1
*/
10-3 結構體指針變量的定義
#include <stdio.h>
#include <string.h>
int main(){
struct student{
long num;
char name[12];
char sex;
float score;
}stu;
struct student *p=&stu;
stu.num = 200052;
strcpy(stu.name,"zhaoqian");
stu.sex='f';
stu.score = 98.25;
printf("no %d: name = %s,sex is %c,score = %f\r\n",stu.num,stu.name,stu.sex,stu.score);
printf("no %d: name = %s,sex is %c,score = %f\r\n",(*p).num,(*p).name,(*p).sex,stu.score);
printf("no %d: name = %s,sex is %c,score = %f\r\n",p->num,p->name,p->sex,p->score);
return 0;
}
/*
no 200052: name = zhaoqian,sex is f,score = 98.250000
no 200052: name = zhaoqian,sex is f,score = 98.250000
no 200052: name = zhaoqian,sex is f,score = 98.250000
*/
10-4 輸出學生情況i表，情況由sta數組存放
#include <stdio.h>
#include <string.h>
struct student{
long num;
char name[12];
char sex;
int age;
};
struct student stu[3]={{200156,"liming",'m',18},{200569,"huangjun",'f',17},{200789,"liqian",'f',20}};
int main(){
struct student *p;
for(p=stu;p<stu+3;p++)
printf("no %d: name = %s,sex is %c,score = %d\r\n",p->num,p->name,p->sex,p->age);
return 0;
}
/*
no 200156: name = liming,sex is m,score = 18
no 200569: name = huangjun,sex is f,score = 17
no 200789: name = liqian,sex is f,score = 20
*/
10-5 用結構體變量作為實參傳遞資料
#include <stdio.h>
#include <string.h>
struct gzqk{
char name[12];
double jbgz;
double fdgz;
double sum;
};
int main(){
struct gzqk teacher;
printf("Input name:\r\n");
scanf("%s",teacher.name);
teacher.jbgz=1650.2;
teacher.fdgz=860.7;
teacher.sum=teacher.fdgz+teacher.jbgz;
display(teacher);
printf("%s , %5.2f, %5.2f, %5.2f\r\n",teacher.name,teacher.jbgz,teacher.fdgz,teacher.sum);
return 0;
}
display(p)
struct gzqk p;
{
printf("%s , %5.2f, %5.2f, %5.2f\r\n",p.name,p.jbgz,p.fdgz,p.sum);
p.jbgz=2650.2;
p.fdgz=560.7;
p.sum=p.fdgz+p.jbgz;
printf("%s , %5.2f, %5.2f, %5.2f\r\n",p.name,p.jbgz,p.fdgz,p.sum);
}
/*
Input name:
xuting
xuting , 1650.20, 860.70, 2510.90
xuting , 2650.20, 560.70, 3210.90
xuting , 1650.20, 860.70, 2510.90
*/
10-6 用指向結構體變量的指針作為函數實參傳遞資料
#include <stdio.h>
#include <string.h>
struct student{
long num;
char name[12];
float score[3];
}stb1={2021006,"liming",60,70,80},stb2={20210556,"huguang",78,89,85};
void output(struct student *p)
{
printf("%7ld,%5s,%.2f,%.2f,%.2f\r\n",p->num,p->name,p->score[0],p->score[1],p->score[2]);
}
int main(){
output(&stb1);
output(&stb2);
return 0;
}
/*
2021006,liming,60.00,70.00,80.00
20210556,huguang,78.00,89.00,85.00
*/
10-7 結構體數組作為函數參數
#include <stdio.h>
#include <string.h>
struct student{
long num;
char name[12];
float score[3];
}stb[2]={{2021006,"liming",60,70,80},{20210556,"huguang",78,89,85}};
void output(struct student *p)
{
for(p=stb;p<stb+2;p++)
printf("%7ld,%5s,%.2f,%.2f,%.2f\r\n",p->num,p->name,p->score[0],p->score[1],p->score[2]);
}
int main(){
output(&stb);
return 0;
}
/*
2021006,liming,60.00,70.00,80.00
20210556,huguang,78.00,89.00,85.00
*/
10-8 管理通訊錄程式
建立資訊、查詢資訊、修改資訊、顯示所有資訊
聯系人資訊包括
姓名、學号、電話
最多可以包括100人
主函數可調用不同的功能子產品