#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; } 复制代码 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

复制代码 #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; } 复制代码 -------------------------------- Process exited after 0.2435 seconds with return value 0 请按任意键继续. . .

9.3

复制代码 #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; } 复制代码 -------------------------------- Process exited after 0.3419 seconds with return value 0 请按任意键继续. . .

9.4

复制代码 #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; } 复制代码 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

复制代码 #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; } 复制代码 -------------------------------- Process exited after 0.187 seconds with return value 0 请按任意键继续. . .

9.6

复制代码 #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; } } 复制代码 -------------------------------- Process exited after 0.1857 seconds with return value 0 请按任意键继续. . .

9.7

复制代码 #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]); }

抄写作业