我的编程生涯的入门语言 - C语言之学员成绩管理

至今还保存着当初学 C语言 时的代码，现在看来已经有点生疏，毕竟好久没玩了。

往事不堪回首啊！

直接贴代码了：

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#include <stdio.h>

struct student

{

    int num;

    char name[15];

    float score[3];

    double avr;

};

struct student stu[50];

struct student input()

{

    struct student studn;

    int i,sum=0;

    printf ("请输入学号:");

    scanf ("%d",&studn.num);

    printf ("请输入姓名:");

    scanf("%s",&studn.name);

 

    for(i=0;i<3;i++)

    {

        printf ("第%d 个成绩:",i+1);

        scanf ("%f",&studn.score[i]);

        sum+=studn.score[i];

    }

    studn.avr=sum/3.0;

    return studn;

}

void display(struct student stud[],int count)

{

    printf ("\n学号\t姓名\t平均成绩\n");

    for (int i=0;i<count;i++)

    {

        printf ("%d",stud[i].num);

        printf ("\t%s",stud[i].name);

        printf ("\t%7.2f",stud[i].avr);

        printf ("\n");

    }

}

void sort (struct student stud[],int count)

{

    struct student t;

    for (int i=0;i<count;i++)

    {

        for (int j=0;j<count-i-1;j++)

        {

            if ((stud[j].avr)<(stud[j+1].avr))

            {

                 t=stud[j];

                stud[j]=stud[j+1];

                stud[j+1]=t;

            }

        }

    }

}

 

void insert (struct student stud[],int count)

{

    int i,j;

    struct student temp;

    printf ("请输入要插入学员的信息\n");

    temp = input();

    for(i=0;i<count;i++)

    {

         if((stud[i].avr)<(temp.avr))

         break;

    }

    for (j=count;j>=i;j--)

    {

        stud[j+1]=stud[j];

    }

    stud[i]=temp;

}

void display2(struct student stud[],int count)

{

     printf ("\n学号\t姓名\t平均成绩\n");

    for (int i=0;i<(count+1);i++)

    {

        printf ("%d",stud[i].num);

        printf ("\t%s",stud[i].name);

        printf ("\t%7.2f",stud[i].avr);

        printf ("\n");

    }

}

void dele (struct student stud[],int count )

{

    int i,j,temp;

    //struct student temp;

    printf ("请输入要删除的学员的学号:\n");

    scanf ("%d",&temp);

   // temp=input();

    for (i=0;i<count;i++)

    {

        if (stud[i].num==temp)

        {

            for (j=i;j<count;j++)

            {

                stud[j]=stud[j+1];

            }

        }

    }

}

 

void main()

{

    int count=0;

    char ch='Y';

     while((ch=='y')||(ch=='Y'))

    {

        stu[count]=input();

        count++;

        printf ("是否要继续(y/n):\n");

 

        fflush(stdin);

        scanf ("%c",&ch);

    }

    printf ("\n排序前的学员成绩序列如下:");

    display(stu,count);

    sort (stu,count);

    printf ("排序后的学员成绩序列如下:");

    display (stu,count);

    insert(stu,count);

    printf ("插入后的学员成绩序列如下:");

    display2 (stu,count);

    dele(stu,count+1);

    display (stu,count);

}

　　

谢谢浏览！