范例01-081

 

  选票统计的 输入10个选片的姓 统计出每个所得的个数

 #include "stdio.h"

 

struct candidate

{

        char name[20];

        int count;

} cndt[3] = {{"wang",0},{"zhang",0},{"chen",0}};

 

void main()

{

        int i,j;

        char Ctname[20];

        for(i=1;i<=10;i++)

        {

                scanf("%s",&Ctname);

                for(j=0;j<3;j++)

                {

                        if(strcmp(Ctname,cndt[j].name)==0)

                        cndt[j].count++;

                }

        }

        for(i=0;i<3;i++)

        {

                printf("%s:%d\n",cndt[i].name,cndt[i].count);

        }

}

 

 

 范例 02 输出成绩最大--082--???

#include "stdio.h"

 

struct student

{

        int num;

        char name[20];

        float score;

};

 

 

void main()

{

        int i,m;

        float maxScore;

 

        struct student stu[5] =

        {

                {"01","liming",60},

                {"02","uu",70.56},

                {"03","bravery",88.90},

                {"04","sam",99.01},

                {"05","test",89.04},

        };

        printf("%s",stu[0].name);

        m=0;

        maxScore = stu[0].score;

        for(i=1;i<5;i++)

        {

                if(stu[i].score > maxScore)

                {

                        maxScore = stu[i].score;

                        m=i;

                }

        //      printf("i:%d\n",i);

        }

        printf("m is:%d\n",m);

        printf("the maxScoreis:%f\n",maxScore);

        printf("the maxScore stu is:%c\n",stu[m].name);

        printf("the maxScore stu number is:%d\n",stu[m].num);

}

 

范例03 求平均数  -083

#include

 

void main()

{

        struct stu_score

        {

                int mid;

                int end;

                int ave;

        }score;

        printf("please input score(midterm and end  and end of term)");

        scanf("%d,%d",&score.mid,&score.end);

        score.ave = (score.mid + score.end)/2;

        printf("average = %d\n",score.ave);

}

 

实例05  比较输入数的大小 -084

#include "stdio.h"

#define N 5

 

struct order

{

        int num;

        int con;

}a[20];

 

main()

{

        int i,j;

        for(i=0;i

        {

                scanf("%d",&a[i].num);

                a[i].con=0;

        }

        for(i=N-1;i>=1;i--)

        {

                for(j=i-1;j>=0;j--)

                        if(a[i].num < a[j].num)

                                a[j].con++;

                        else

                                a[i].con++;

        }

        printf("the order is:\n");

        for(i=0;i

                printf("==\n",a[i].num,a[i].con);

}

 

 

实例06  信息查询 -085

#include

#include

#define MAX 101

 

struct aa

{

        char name[15];

        char tel[15];

};

 

int readin(struct aa *a)

{

        int i=0,n=0;

        while(1)

        {

                scanf("%s",a[i].name);

                if(!strcmp(a[i].name,"#"))

                        break;

                scanf("%s",a[i].tel);

                i++;

                n++;

        }

        return n;

}

 

void search(struct aa *b,char *x,int n)

{

        int i=0；

        while(1)

       {

                if(!strcmp(b[i].name,x))

                {

                        printf("name:%s tel:%s\n",b[i].name,b[i].tel);

                        break;

                }

                else

                        i++;

                n--;

                if(n==0)

                {

                        printf("not found !\n");

                        break;

                }

        }

}

 

main()

{

        struct aa s[MAX];

        int num;

        char name[15];

        num = readin(s);

        printf("input the name:");

        scanf("%s",name);

        search(s,name,num);

}

 

llll

5522255

bbbb

112444

ttttt

889900

# 输入3个手机号 然后 以#号结束  

input the name:llll                   //搜索这个名字的人的手机号

name:llll tel:5522255

 

实例07 -086 计算开机时间

#include "stdio.h"

 

 

struct time

{

        int hour;

        int minute;

        int second;

}t;

 

main()

{

        FILE *fp;

        fp = fopen("Time","r");

        fread(&t,sizeof(struct time),1,fp);

        while(!kbhit())

        {

                rewind(fp);

                sleep(1);

                fread(&t,sizeof(struct time),1,fp);

                if(t.second == 59)

                {

                        t.minute = t.minute+1;

                        if(t.minute == 60)

                        {

                                t.hour = t.hour+1;

                                t.minute = 0;

                        }t.second =0;

                }

                else

              else

                        t.second = t.second+1;

                printf("%d:%d:%d\n",t.hour,t.minute,t.second);

                fp = fopen("Time","w");

                fwrite(&t,sizeof(struct time),1,fp);

                fclose(fp);

        }

}

出错

mac:c-calculation loveuu$ gcc -o struct07 struct07.c

Undefined symbols for architecture x86_64:

  "_kbhit", referenced from:

      _main in ccZ46QqX.o

ld: symbol(s) not found for architecture x86_64

collect2: ld returned 1 exit status

 

实例08  链表  --087

 

 

#include "stdio.h"

#include

 

 

struct LNode

{

        int data;

        struct LNode *next;

};

 

struct LNode *create(int n)

{

        int i;

        struct LNode *head,*p1,*p2;

        int a;

        head = NULL;

        printf("input the intgers:\n");

        for(i=n;i>0;--i)

        {

                p1 = (struct LNode)malloc(sizeof(struct LNode));

                scanf("%d",&a);

                p1->data=a;

                if(head ==NULL)

                {

                        head = p1;

                        p2=p1;

                }

                else

                {

                        p2->next = p1;

                }

        }

        p2->next = NULL;

        return head;

}

 

void main()

{

        int n;

        struct LNode *q;

        printf("Input the count of the nodes you want to create:");

        scanf("%d",&n);

        q = create(n);

        printf("the result is :\n");

        while(q)

        {

                printf("%d ",q->data);

                q=q->next;

        }getch();

}