C语言程序设计(图书管理系统)//源代码一定要运行的起来

栏目:资讯发布:2023-09-22浏览:3收藏

C语言程序设计(图书管理系统)//源代码一定要运行的起来,第1张

#ifndef _SIMPLE_BOOK_MANAGER_H

#define _SIMPLE_BOOK_MANAGER_H

typedef struct BookRecord

{

int index; //编号

char catalog[20]; //分类

char book_name[40]; //书名

char author[20]; //作者

char publisher[80]; //出版社

int quantity; //数量

float single_price; //单价

float total_price; //总价

}BookRecord, PtrBookRecord;

typedef struct CatalogRecord

{

int index; //编号

char catalog[20]; //分类

int total_number; //总册数

}CatalogRecord, PtrCatalogRecord;

#endif

void ReadBookRecord(BookRecord, FILE);

void FillRecord(char line, BookRecord);

FILE open_file(const char file_name);

void GetNumber(const char file_name, char number);

void print_main_menu();

char get_command();

void SearchAndDisplay(BookRecord);

void Arrange(BookRecord);

void PriceStat(BookRecord, const char output_file_name);

void NumberStat(BookRecord, const char output_file_name);

void print_search_and_disp_menu();

void SearchByName(BookRecord);

void SearchByAuthor(BookRecord);

void ShowAllBook(BookRecord);

void print_head();

void print_book_record(BookRecord);

void print_arrange_menu();

void ArrangeByCatalog(BookRecord);

void ArrangeByPublisher(BookRecord);

int total_book_number;

int main(int argc, char argv[])

{

FILE fp;

char cmd;

char number[10] = {0};

char price_file_name[20] = {0};

char catalog_file_name[20] = {0};

BookRecord book_records[20];

int loop = 1;

memset(book_records, 0, sizeof(book_records));

if (argc >= 2)

{

fp = open_file(argv[1]);

GetNumber(argv[1], number);

}

else

{

char file_name[] = "DX0112txt";

fp = open_file(file_name);

GetNumber(file_name, number);

}

if (fp == NULL)

{

printf("打开文件失败!");

return -1;

}

else

{

strcpy(price_file_name, "ZJ");

strcat(price_file_name, number);

strcat(price_file_name, "txt");

strcpy(catalog_file_name, "ZL");

strcat(catalog_file_name, number);

strcat(catalog_file_name, "txt");

}

ReadBookRecord(book_records, fp);

while (loop)

{

print_main_menu();

cmd = get_command();

switch(cmd)

{

case 'S': //查询显示

case 's':

SearchAndDisplay(book_records);

break;

case 'A': //排序

case 'a':

Arrange(book_records);

break;

case 'P': //统计总价

case 'p':

PriceStat(book_records, price_file_name);

break;

case 'N': //统计总册数

case 'n':

NumberStat(book_records, catalog_file_name);

break;

case 'Q':

case 'q':

loop = 0;

break;

default:

break;

}

}

fclose(fp);

}

#include <iostreamh>

#include <fstreamh>

int mark[]; //右来保存走法的

int num[2][2];//棋盘

int temp;

int k ;

int q ;

string strAim = "123804765" //目标字符串,空格用0表示

string States[100];//字符窜数组

int iQuick; //有来退出递归的标志,1,表示找到走法,可以退出,0,怎么没有找到走法,继续走

Hrd(int i,int j)//华龙道算法,好像能找到结果,但是不能找到最少步数的结果,我不确定会不会还有漏洞。结果保存在mark[]中

{ string str1;

if (i!=0) //如果可以向上走,则向上走一步

{

temp=num[i-1][j];

num[i-1][j]=num[i][j];

num[i][j]=temp ; //交换空格和它上面的数字

// 保存交换后的状态

str1=Change2Str(num[][]); //转化成字符串,用来比较

if (CompState(str1)) //比较变换后的状态是否在以前的状态中出现过

{

//如果以前出现过,则返回

temp=num[i-1][j];

num[i-1][j]=num[i][j];

num[i][j]=temp ; // 把原来交换过的数字再交换过来

return ;

}

else//比较后,发现目前的状态以前没有出现过

{ mark[k++]=1 ;

if(strcmp(&strAim,& str1)=1)//跟目标比,看是否相等

{

iquick=1;

return;

}

else //不相等,没有达到最后我们的要求

{

//1 代表向上走了一步

Add2States(str1); //保存现在的状态到状态数组中

Hrd(i-1,j);

if (iquick=1) //可以退出

{

return;

}

} //递归,继续遍历

}

}

if(j!=2)//如果可以向右走,则向右走一步

{

temp=num[i][j+1];

num[i][j+1]=num[i][j] ;

num[i][j]=temp;

// 保存交换后的状态

str1=Change2Str(num[][]); //转化成字符串,用来比较

if (CompState(str1)) //比较变换后的状态是否在以前的状态中出现过

{

//如果以前出现过,返回

temp=num[i][j+1];

num[i][j+1]=num[i][j] ;

num[i][j]=temp; // 把原来交换过的数字再交换过来

return;

}

else//比较后,发现目前的状态以前没有出现过

{ mark[k++]=2 ; //2 代表向右走了一步

if(strcmp(&strAim,& str1)=1)//跟目标比,看是否相等

{

iquick=1;

return;

}

else //没有达到结果

{

Add2States(str1); //保存现在的状态到状态数组中

Hrd(i,j+1) ; //递归,继续遍历

if (iquick=1)

{

return;

}

}

}

}

if (i!=2)// 如果可以向下走,则向下走一步

{

temp=num[i+1][j];

num[i+1][j]=num[i][j];

num[i][j]=temp;

// 保存交换后的状态

str1=Change2Str(num[][]); //转化成字符串,用来比较

if (CompState(str1)) //比较变换后的状态是否在以前的状态中出现过

{

//如果以前出现过,则返回

temp=num[i+1][j];

num[i+1][j]=num[i][j];

num[i][j]=temp; // 把原来交换过的数字再交换过来

return ;

}

else//比较后,发现目前的状态以前没有出现过

{ mark[k++]=3 ; //3 代表向下走了一步

if(strcmp(&strAim,& str1)=1)//跟目标比,看是否相等

{

iquick=1;

return;

}

else //没有达到最后我们的要求

{

Add2States(str1); //保存现在的状态到状态数组中

Hrd(i+1,j) ; //递归,继续遍历

if (iquick=1)

{

return;

}

}

}

}

if (j!=0)//如果可以向左走,则向左走一步

{

temp=num[i1][j-1];

num[i][j-1]=num[i][j];

num[i][j]=temp;

// 保存交换后的状态

str1=Change2Str(num[][]); //转化成字符串,用来比较

if (CompState(str1)) //比较变换后的状态是否在以前的状态中出现过

{

//如果以前出现过,则回溯

temp=num[i][j-1];

num[i][j-1]=num[i][j];

num[i][j]=temp; // 把原来交换过的数字再交换过来

return ;

}

else//比较后,发现目前的状态以前没有出现过

{ mark[k++]=4 ; //1 代表向右走了一步

if(strcmp(&strAim,& str1)=1)//跟目标比,看是否相等

{

iquick=1;

return;

}

else //没有达到最后我们的要求

{

Add2States(str1); //保存现在的状态到状态数组中

Hrd(i,j-1) ; //递归,继续遍历

if (iquick=1)

{

return;

}

}

}

}

//如果都走过了,则返回

k--;

return;

}

void Change2Str(int arr[][])// 把二维数组转换成一个字符串

{int i,j

string strState

for (i=0;i<3 ;i++ )

{ for (j=0;j<3 ;j++ )

{

strState= strState & arr[i][j];

}

}

return strState;

}

void CompState(string str1 )//比较当前的状态是否再以前的状态中出现过

{ int i;

for (i=0;i<len(states[])-1 ; i++)//len(states[]),取得数组的长度,有点忘了

{

if (strcmp(&States[i],&str1)!=0)//如果两个字符串相等,则函数返回true

{

return true;

}

}

return false;

}

Add2States(string str1)

{

States[q++]=str1 ;

}

main()

{ num[0][0]=1;

num[0][1]=2;

num[0][2]=3;

num[1][0]=8;

num[1][1]=6;

num[1][2]=4;

num[2][0]=1;

num[2][1]=0;

num[2][2]=5;

hrd(2,1);

for(int i=0 ,i<100,i++)

{count<<mark[i]<<endl;

}

}

Dim moveup As Integer '蛇向上转向的标志

Dim movedown As Integer

Dim moveleft As Integer

Dim moveright As Integer

Public u As Integer 'u,l,r,d为蛇转向时的控制数值

Public d As Integer

Public l As Integer

Public r As Integer

Public score As Integer '游戏分数

Public speed As Integer '游戏速度

Public pause As Boolean '游戏暂停标志

Public gamebegin As Boolean '游戏开始标志

Public s As Integer '蛇的当前长度,开始时设为6

Public eatd As Boolean '蛇是否吃到食物的标志

Public lastx As Integer '若蛇吃到食物,lastx,lasty用来存放当前最后一个shape的运动状态,以供设定新的shape运动状态之用

Public lasty As Integer

Option Base 1

Dim X(100) As Long '数组存放蛇的长度

Dim Y(100) As Long

Public Sub eat() '判断蛇是否吃到食物的函数

If X(1) = -200 Then

If Shape1(1)Left <= Shape2Left And Shape1(1)Top = Shape2Top Then

eatd = True

End If

End If

If Y(1) = -200 Then

If Shape1(1)Top <= Shape2Top And Shape1(1)Left = Shape2Left Then

eatd = True

End If

End If

If X(1) = 200 Then

If Shape1(1)Left >= Shape2Left + 200 And Shape1(1)Top = Shape2Top Then

eatd = True

End If

End If

If Y(1) = 200 Then

If Shape1(1)Top >= Shape2Top + 200 And Shape1(1)Left = Shape2Left Then

eatd = True

End If

End If

End Sub

Public Sub ensure_position() '此函数确定新的shape1(s)的位置

If X(s - 1) = -200 Then

Shape1(s)Left = Shape1(s - 1)Left + 200: Shape1(s)Top = Shape1(s - 1)Top

End If

If Y(s - 1) = -200 Then

Shape1(s)Left = Shape1(s - 1)Left: Shape1(s)Top = Shape1(s - 1)Top + 200

End If

If X(s - 1) = 200 Then

Shape1(s)Left = Shape1(s - 1)Left - 200: Shape1(s)Top = Shape1(s - 1)Top

End If

If Y(s - 1) = 200 Then

Shape1(s)Left = Shape1(s - 1)Left: Shape1(s)Top = Shape1(s - 1)Top - 200

End If

End Sub

Public Sub ensure_state() '此过程用来确定新的控件的初始运动状态

If X(1) = -200 Then

If moveleft = 1 Then

X(s) = X(s - 1): Y(s) = Y(s - 1)

Else

X(s) = lastx: Y(s) = lasty

End If

End If

If Y(1) = -200 Then

If moveup = 1 Then

X(s) = X(s - 1): Y(s) = Y(s - 1)

Else

X(s) = lastx: Y(s) = lasty

End If

End If

If X(1) = 200 Then

If moveright = 1 Then

X(s) = X(s - 1): Y(s) = Y(s - 1)

Else

X(s) = lastx: Y(s) = lasty

End If

End If

If Y(1) = 200 Then

If movedown = 1 Then

X(s) = X(s - 1): Y(s) = Y(s - 1)

Else

X(s) = lastx: Y(s) = lasty

End If

End If

End Sub

Public Sub strike_oneself() '测试蛇头是否撞到自己

Dim i

Dim j: j = 0

If Y(1) = 200 Then '蛇头向下撞到自己

For i = 7 To s '蛇头只能和第六块或以后的蛇身相撞

If Shape1(1)Top = Shape1(s)Top And Shape1(1)Left = Shape1(s)Left Then

Form1initialize

Form1outputmessage

Exit For

End If

Next i

End If

If X(1) = 200 Then '蛇头向右撞到自己

For i = 7 To s

If Shape1(1)Left = Shape1(i)Left - 200 And Shape1(1)Top = Shape1(i)Top Then

Form1initialize

Form1outputmessage

Exit For

End If

Next i

End If

If Y(1) = -200 Then '蛇头向上撞到自己

For i = 7 To s

If Shape1(1)Top = Shape1(i)Top + 200 And Shape1(1)Left = Shape1(i)Left Then

Form1initialize

Form1outputmessage

Exit For

End If

Next i

End If

If X(1) = -200 Then '蛇头向左撞到自己

For i = 7 To s

If Shape1(1)Left = Shape1(i)Left + 200 And Shape1(1)Top = Shape1(i)Top Then

Form1initialize

Form1outputmessage

Exit For

End If

Next i

End If

End Sub

Public Sub strike_wall() '测试蛇头是否撞到墙壁

If Shape1(1)Top < 0 Or Shape1(1)Top > Line1Y1 - 200 Or Shape1(1)Left < 0 Or Shape1(1)Left > Form1Width - 200 Then

Form1outputmessage

Form1initialize

End If

End Sub

Public Sub outputmessage() ' 游戏结束后的输出信息

gameovermessage = "GAME OVER!"

dx = (8000 - TextWidth(gameovermessage)) / 2 '在窗体中间输出"GAME OVER!"和得分

dy = (6000 - TextHeight(gameovermessage)) / 2

CurrentX = dx: CurrentY = dy

Form1Print gameovermessage

scoremessage = "你的得分:" + Text1Text

dx = (8000 - TextWidth(scoremessage)) / 2

dy = dy + TextHeight(scoremessage)

CurrentX = dx: CurrentY = dy

Form1Print scoremessage

End Sub

Public Sub initialize() '游戏结束(失败)后,游戏初始化函数

moveup = 0

movedown = 0

moveleft = 0

moveright = 0

u = 0: d = 0: l = 0: r = 0

Label5Caption = "停止"

For i = 1 To s ' 初始化蛇的位置和状态

Shape1(i)Left = 1200 + (6 - i) 200

Shape1(i)Top = 5000

X(i) = 200

Y(i) = 0

Next i

If s > 6 Then

For i = 7 To s

Unload Shape1(i) '卸载多余的shape,使初始的shape个数为六个

Next i

End If

'以下的这段是用来查看游戏初始化时的中的参数

'CurrentX = 0: CurrentY = 0

'Form1FontSize = 10

'Print moveup: Print movedown: Print moveleft: Print moveright

'Print u: Print r: Print l: Print d

'For i = 1 To s

'Print X(i): Print Y(i)

'Next i

s = 6

Timer1Enabled = False

gamebegin = False '游戏未开始

pause = False

HScroll1Enabled = True

End Sub

Private Sub Command1_Click()

Timer1Enabled = False

Dim r

r = MsgBox("你真的要退出吗", 33, "警告")

If r = 1 Then

Unload Form1

Else

Timer1Enabled = True

End If

End Sub

Private Sub Form_KeyPress(keyascii As Integer)

If gamebegin = True And pause = False Then '只有游戏处于开始时方向键才有效

'下面四个if语句是蛇的方向控制函数

If keyascii = 119 Then

If Y(1) <> 200 Then '只有当蛇头不正好向下运动时,按下向上才有效

moveup = 1 '向下上为w

End If

End If

If keyascii = 97 Then '向左为a

If X(1) <> 200 Then

moveleft = 1

End If

End If

If keyascii = 115 Then '向下为s

If Y(1) <> -200 Then

movedown = 1

End If

End If

If keyascii = 100 Then '向右为d

If X(1) <> -200 Then

moveright = 1

End If

End If

End If

If keyascii = 32 Then '判断游戏是否在开始,按下空格键开始,否则按下空格键为暂停

If gamebegin = False Then

Timer1Enabled = True

Label5Caption = "开始"

Form1Cls

score = 0

Text1Text = Str$(score)

HScroll1Enabled = False

gamebegin = True

Else

If pause = True Then '判断暂停与否

Timer1Enabled = True

Label5Caption = "开始"

Else

Timer1Enabled = False

Label5Caption = "暂停"

End If

pause = Not pause

End If

End If

End Sub

Private Sub Form_Load() '对各参数的初始化

moveup = 0

moveleft = 0

moveright = 0

movedown = 0

u = 0: l = 0: d = 0: r = 0

s = 6 '蛇的初始长度

eatd = False

gamebegin = False

pause = False

speed = HScroll1Value '初始速度

Label5Caption = "停止"

Dim i

For i = 1 To s '蛇的初始运动方向

X(i) = 200

Y(i) = 0

Next i

Timer1Enabled = False '没开始游戏

Shape2Left = 200 Int(30 Rnd) '贪吃蛇的食物的位置初始化

Shape2Top = 200 Int(30 Rnd)

End Sub

Private Sub HScroll1_Change()

speed = HScroll1Value

End Sub

Private Sub Timer1_Timer()

Timer1Interval = 150 / speed '游戏速度

If movedown = 1 Then '按下下方向键,蛇向下转向

d = d + 1

X(d) = 0: Y(d) = 200

If d = s Then

movedown = 0: d = 0

End If

End If

If moveup = 1 Then '按下向上方向键,蛇向上转向

u = u + 1

X(u) = 0: Y(u) = -200

If u = s Then

moveup = 0: u = 0

End If

End If

If moveleft = 1 Then '向左

l = l + 1

X(l) = -200: Y(l) = 0

If l = s Then

moveleft = 0: l = 0

End If

End If

If moveright = 1 Then '向右

r = r + 1

X(r) = 200: Y(r) = 0

If r = s Then

moveright = 0: r = 0

End If

End If

Dim i '蛇的运动代码

For i = 1 To s

Shape1(i)Left = Shape1(i)Left + X(i)

Shape1(i)Top = Shape1(i)Top + Y(i)

Next i

Form1eat '调用过程eat(),判断蛇是否吃了食物

If eatd = True Then

score = score + 5 HScroll1Value

Text1Text = Str$(score)

Shape2Left = 200 Int(30 Rnd) '如果食物被吃则随机产生贪吃蛇的食物的位置

Shape2Top = 200 Int(30 Rnd)

Shape2FillColor = RGB(Int(255 Rnd), Int(255 Rnd), Int(255 Rnd)) '随机产生食物的颜色

If Shape2FillColor = &H0& Then

Shape2FillColor = RGB(100, 150, 200)

End If

lastx = X(s) '蛇吃到食物,lastx,lasty用来存放当前最后一个shape的运动状态-

lasty = Y(s) '-以供设定新的shape运动状态之用

s = s + 1

Load Shape1(s) '产生新的控件shape1数组,使蛇的长度加长

Form1ensure_state '调用设定新的shape控件的运动状态过程

Form1ensure_position '设定新的shape1的位置

Shape1(s)Visible = True

eatd = False

End If

Form1strike_oneself '测试游戏是否失败的函数

Form1strike_wall

End Sub

#include<stdioh>

#include<conioh>

#include<stdlibh>

#include<stringh>

typedef struct

{

long class_1; /班级/

long number; /学号/

char name[20]; /姓名/

float tall; /身高/

float math; /数学/

float c_program; /C语言/

float physics; /大学物理/

float english; /大学英语/

float sum; /总分/

float average; /平均分/

}Student;

Student stud[100];

int i=0;

int menu() /菜单函数/

{

int a;

system("graftabl 936");

printf("学生信息管理系统\n\n\n");

printf("\t\t\t(1)输入学生信息\n");

printf("\t\t\t(2)显示所有学生信息\n");

printf("\t\t\t(3)按平均分升降排序\n");

printf("\t\t\t(4)根据学号查找学生信息\n");

printf("\t\t\t(5)插入学生信息\n");

printf("\t\t\t(6)删除学生信息\n");

printf("\t\t\t(7)修改学生信息\n");

printf("\t\t\t(8)从文件中读入数据\n");

printf("\t\t\t(9)将所有记录写入文件\n");

printf("\t\t\t(0)退出本系统\n\n\n");

printf("学生信息管理系统\n");

printf("请选择你要的操作(0~9):");

scanf("%d",&a); /读入一个数/

while(a<0||a>9)

{

printf("输入错误!请重新输入:\n");

scanf("%d",&a); /输入错误就一直循环/

}

system("cls"); /清屏/

return(a); /返回a的值/

}

int input(Student stud[])

{

char flag='Y';

while(flag=='Y'||flag=='y')

{

printf("请输入该学生的班级:");

scanf("%ld",&stud[i]class_1);

printf("请输入该学生的学号:");

scanf("%ld",&stud[i]number);

printf("请输入该学生的姓名:");

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

printf("请输入学生的身高:");

scanf("%f",&stud[i]tall);

printf("请输入该学生的“数学”分数:");

scanf("%f",&stud[i]math);

printf("请输入该学生的“C语言”分数:");

scanf("%f",&stud[i]c_program);

printf("请输入该学生的“大学物理”分数:");

scanf("%f",&stud[i]physics);

printf("请输入该学生的“大学英语”分数:");

scanf("%f",&stud[i]english);

getchar();

stud[i]sum=stud[i]math+stud[i]c_program+stud[i]physics+stud[i]english;

stud[i]average=stud[i]sum/4;

printf("该学生的总分为:%62f\t平均分为:%62f\n",stud[i]sum,stud[i]average);

i++;

printf("继续输入学生信息请按:Y or y,退出请按:N or n\n");

scanf("%c",&flag); /判断是否继续输入/

}

printf("按任意键回主菜单\n");

getchar();

system("cls");

return(i);

}

void Display(Student stud[],int n) /显示所有记录/

{

int k;

if(n==0)

printf("暂无学生记录!\n");

else

{

printf(" 班别 学号 姓名 身高 数学 C语言 物理 英语 总分 平均分\n");

for(k=0;k<n;k++) /循环输出/

{

printf("%7ld",stud[k]class_1);

printf("%7ld",stud[k]number);

printf("%9s",stud[k]name);

printf("%71f",stud[k]tall);

printf("%72f",stud[k]math);

printf("%72f",stud[k]c_program);

printf("%72f",stud[k]physics);

printf("%72f",stud[k]english);

printf("%72f",stud[k]sum);

printf("%82f\n",stud[k]average);

}

}

system("pause");

system("cls");

}

void Sort(Student stud[],int i) /按平均分排序/

{

int m,n,k; /m,n为循环变量/

Student t;

for(m=0;m<i-1;m++) /排序/

for(n=m+1;n<i;n++)

if(stud[m]average<stud[n]average)

{

t=stud[m];

stud[m]=stud[n];

stud[n]=t;

}

printf("排序后的顺序为:\n");

printf(" 班别 学号 姓名 身高 数学 C语言 物理 英语 总分 平均分\n");

for(k=0;k<n;k++) /循环输出/

{

printf("%7ld",stud[k]class_1);

printf("%7ld",stud[k]number);

printf("%9s",stud[k]name);

printf("%71f",stud[k]tall);

printf("%72f",stud[k]math);

printf("%72f",stud[k]c_program);

printf("%72f",stud[k]physics);

printf("%72f",stud[k]english);

printf("%72f",stud[k]sum);

printf("%82f\n",stud[k]average);

}

system("pause");

system("cls");

}

void Search(Student stud[],int i) /查找并显示一个记录/

{

int p,k; /p为要查找的学生学号/

char flag='y';

while(flag=='y'||flag=='Y')

{

printf("请输入要查找的学生学号:");

scanf("%d",&p);

getchar();

for(k=0;p!=stud[k]number&&k<i;k++)

if(k==i)

printf("该学号不存在!\n");

else

{

printf("该学生的信息为:\n");

printf(" 班别 学号 姓名 身高 数学 C语言 物理 英语 总分 平均分\n");

printf("%7ld",stud[k]class_1);

printf("%7ld",stud[k]number);

printf("%9s",stud[k]name);

printf("%71f",stud[k]tall);

printf("%72f",stud[k]math);

printf("%72f",stud[k]c_program);

printf("%72f",stud[k]physics);

printf("%72f",stud[k]english);

printf("%72f",stud[k]sum);

printf("%82f\n",stud[k]average);

}

printf("继续查找学生信息请输入:Y or y,退出输入:N or n\n");

scanf("%c",&flag);

}

system("cls");

}

int Insert(Student stud[],int i) /插入学生信息/

{

char flag='Y';

while(flag=='y'||flag=='Y')

{

printf("请输入要插入学生的班别:");

scanf("%ld",&stud[i]class_1);

printf("请输入要插入学生的学号:");

scanf("%ld",&stud[i]number);

printf("请输入要插入学生的姓名:");

scanf("%s",&stud[i]name);

printf("请输入要插入学生的身高:");

scanf("%f",&stud[i]tall);

printf("请输入要插入学生的“数学”分数:");

scanf("%f",&stud[i]math);

printf("请输入要插入学生的“C语言”分数:");

scanf("%f",&stud[i]c_program);

printf("请输入要插入学生的“大学物理”分数:");

scanf("%f",&stud[i]physics);

printf("请输入要插入学生的“大学英语”分数:");

scanf("%f",&stud[i]english);

getchar();

stud[i]sum=stud[i]math+stud[i]c_program+stud[i]physics+stud[i]english;

stud[i]average=stud[i]sum/4;

printf("该学生的总分为:%62f\n",stud[i]sum);

printf("该学生的平均分为:%63f\n",stud[i]average);

i++;

printf("继续插入学生信息请输入:Y or y,退出输入:N or n\n");

scanf("%c",&flag); /判断是否继续输入/

}

getchar();

printf("是否需要排序,需要请按'Y' or 'y';不需要请按'N' or 'n'\n");

flag=getchar();

if(flag=='y'||flag=='Y')

Sort(stud,i);

system("cls");

return(i);

}

int Delete(Student stud[],int i) /根据学号删除学生信息/

{

long s;

int t,p;

char a='Y'; /判断是否继续/

while(a=='Y'||a=='y')

{

printf("请输入需要删除学生的学号:\n");

scanf("%ld",&s);

getchar();

for(t = 0; t < i && s!=stud[i]number; t++)

if(s==stud[t]number)

{

for(p=t;p<i;p++)

stud[p]=stud[p+1];

i=i-1;

printf("删除成功!\n");

}

else printf("没有找到要删除的学号!\n");

printf("是否继续删除,继续请按'Y' or 'y',退出请按'N' or 'n'\n");

a=getchar(); /判断是否继续/

getchar(); /消除回车键的影响/

}

system("cls");

return(i);

}

void change(Student stud[],int i) /修改学生信息/

{

long p=0; /p用来表示要修改的学生学号/

int k; /k为循环变量/

char a='y';

while(a=='y'||a=='Y')

{

printf("\t\t学生信息修改:\n");

printf("请输入要修改的学生的学号:\n");

scanf("%ld",&p);

for(k=0;p!=stud[k]number && k<i;k++)

if(k==i)

printf("无法找到该学生的信息:\n");

else

{

printf("该学生的信息为:\n");

printf(" 班别 学号 姓名 身高 数学 C语言 物理 英语 总分 平均分\n");

printf("%7ld",stud[k]class_1);

printf("%7ld",stud[k]number);

printf("%9s",stud[k]name);

printf("%71f",stud[k]tall);

printf("%72f",stud[k]math);

printf("%72f",stud[k]c_program);

printf("%72f",stud[k]physics);

printf("%72f",stud[k]english);

printf("%72f",stud[k]sum);

printf("%82f\n",stud[k]average);

printf("请输入该学生的新信息:\n");

printf("请输入该学生的班级:");

scanf("%d",&stud[k]class_1);

printf("请输入该学生的学号:");

scanf("%d",&stud[k]number);

printf("请输入该学生的姓名:");

scanf("%s",stud[k]name);

printf("请输入该学生的身高:");

scanf("%f",&stud[k]tall);

printf("请输入该学生的“数学”分数:");

scanf("%f",&stud[k]math);

printf("请输入该学生的“C语言”分数:");

scanf("%f",&stud[k]c_program);

printf("请输入该学生的“大学物理”分数:");

scanf("%f",&stud[k]physics);

printf("请输入该学生的“大学英语”分数:");

scanf("%f",&stud[k]english);

getchar();

stud[k]sum=stud[k]math+stud[k]c_program+stud[k]physics+stud[k]english;

stud[k]average=stud[k]sum/4;

printf("修改成功!\n");

}

printf("是否继续修改,继续请按'y'或'Y',退出请按'N'或'n'\n");

a=getchar();

}

system("pause");

system("cls");

}

int Read(Student stud[],int i) /从文件中读入学生信息/

{

int k=i;

FILE fp; /定义一个文件类型的指针/

char filename[20]; /定义文件名/

printf("请输入文件名:\n");

scanf("%s",&filename);

if((fp=fopen(filename,"rb"))==NULL) /打开文件/

{

printf("无法打开文件!\n"); /打开失败信息/

return 0;

}

printf("从文件%s中读入的数据为:\n",filename);

fread(&stud[k],sizeof(Student),1,fp);

printf(" 班别 学号 姓名 身高 数学 C语言 物理 英语 总分 平均分\n");

while(!feof(fp))

{

printf("%7ld",stud[k]class_1);

printf("%7ld",stud[k]number);

printf("%9s",stud[k]name);

printf("%71f",stud[k]tall);

printf("%72f",stud[k]math);

printf("%72f",stud[k]c_program);

printf("%72f",stud[k]physics);

printf("%72f",stud[k]english);

printf("%72f",stud[k]sum);

printf("%82f\n",stud[k]average);

k++;

fread(&stud[k],sizeof(Student),1,fp);

}

fclose(fp);

printf("读入成功!\n");

system("pause");

system("cls");

return(k);

}

void Save(Student stud[],int i) /将所有记录写入文件/

{

int k=0;

FILE fp; /定义文件指针/

char filename[80]; /定义文件名/

printf("请输入您要储存学生信息的文件名"); /输入文件名/

scanf("%s",&filename);

if( (fp=fopen(filename,"wt"))==NULL) /打开文件/

{

printf("无法打开该文件!\n");

return;

}

while(k<i)

{

fwrite(&(stud[k]), sizeof(Student), 1, fp);

k++;

}

printf("信息保存成功!\n");

fclose(fp);

}

int main(void)

{

int n=0;

while(1) /选择判断要执行的语句/

{

switch(menu())

{

case 1:printf("\n输入学生信息\n"); /输入学生信息/

n=input(stud);break;

case 2:printf("\n显示所有学生的信息\n");

Display(stud,n);break;

case 3:printf("\n按平均分升降排序\n");

Sort(stud,n);break;

case 4:printf("\n根据学号查找学生的信息\n");

Search(stud,n);break;

case 5:printf("\n插入学生的信息\n");

n=Insert(stud,n);break;

case 6:printf("\n删除学生信息\n");

n=Delete(stud,n);

case 7:printf("\n修改学生的信息\n");

change(stud,n);break;

case 8:printf("\n从文件中读入数据\n");

n=Read(stud,n);break;

case 9:printf("\n将所有记录写入文件\n");

Save(stud,n);break;

case 0:printf("\n感谢您的使用!\n");

exit(0);

}

}

return 0;

}

学生管理系统,,,这个可以不??

// lilvcpp : 定义控制台应用程序的入口点。

//

#include "stdafxh"

//int _tmain(int argc, _TCHAR argv[])

//{

// return 0;

//}

//

# include <stdioh>

# include <stdlibh>

int main(void)

{

double loan,r_o_y,m_p,r_o_m,first,second,third;//loan为贷款额,r_o_y为年利率,m_p为月还款额,first为第一个月的剩余贷款额(含利息),second及third同上

printf("Enter amount of loan: ");

scanf("%lf",&loan);

printf("Enter interest rate: ");

scanf("%lf",&r_o_y);

r_o_m = (r_o_y/100/12);

printf("Enter monthly payment: ");

scanf("%lf",&m_p);

//first = (loan - m_p)+((loan - m_p)r_o_m);

//second = (first - m_p)+((first - m_p)r_o_m);

//third = (second - m_p)+((second - m_p)r_o_m);

first = (loan - m_p)+((loan)r_o_m);

second = (first - m_p)+(firstr_o_m);

third = (second - m_p)+(secondr_o_m);

printf("Balance remaining after first payment: $%2lf\n",first);

printf("Balance remaining after second payment: $%2lf\n",second);

printf("Balance remaining after third payment: $%2lf\n",third);

system("pause");

return 0;

}

#include <string>

#include <iostream>

#include <timeh>

#include <vector>

using namespace std;

class Employee //定义雇员类

{

public:

Employee(); //构造函数

virtual VEmployee();

virtual void Display()=0;

int GetAge(); //获取年龄

string GetName(); //获取姓名

protected:

int Id; //职工ID号

string Name; //职工姓名

char Sex[5]; //性别

int Wage; //工资

string BirthDay; //出身年月

string WorkTime; //参加工作时间

int Age; //年龄

};

class Worker : public Employee //定义工人类

{

public:

Worker();

virtual VWorker();

void Display();

};

class Teacher : public Employee //定义教师类

{

public:

Teacher();

virtual VTeacher();

void Display();

string GetAcademy();

private:

string Academy;

};

Employee::Employee()

{

}

Employee::VEmployee()

{

}

int Employee::GetAge()

{

return Age;

}

string Employee::GetName()

{

return Name;

}

Teacher::Teacher() //添加教师信息

{

cout<<"请输入该教师的信息:"<<endl;

cout<<"职工编号 : "<<endl;

cin>>Id;

cout<<"姓名 : "<<endl;

cin>>Name;

cout<<"性别 : "<<endl;

cin>>Sex;

cout<<"工资 : "<<endl;

cin>>Wage;

cout<<"出生时间 : (格式xxxx/xx/xx)"<<endl;

cin>>BirthDay;

cout<<"参加工作时间 : (格式xxxx/xx/xx)"<<endl;

cin>>WorkTime;

cout<<"所属院系 : "<<endl;

cin>>Academy;

//从生日里提取出生的年份

int Pos = BirthDayfind_first_of('/');

string BirthYear;

BirthYearassign(BirthDay,0,Pos);

char chBirthYear[6];

strcpy(chBirthYear,BirthDayc_str());

//获取当前系统的年份

char NowYear[5];

time_t tnow = time(0);

strftime(NowYear , 5 , "%Y" , localtime(&tnow));

Age = atoi(NowYear)-atoi(chBirthYear); //计算年龄

}

Teacher::VTeacher()

{

}

void Teacher::Display(){ //display()同名函数,输出教师信息

cout<<"职工编号 : "<<Id<<endl;

cout<<"姓名 : "<<Name<<endl;

cout<<"性别 : "<<Sex<<endl;

cout<<"工资 : "<<Wage<<endl;

cout<<"出生时间 : "<<BirthDay<<endl;

cout<<"参加工作时间 : "<<WorkTime<<endl;

cout<<"年龄 : "<<Age<<endl;

}

string Teacher::GetAcademy(){

return Academy;

}

Worker::Worker() //添加工人信息

{

cout<<"请输入该工人的信息:"<<endl;

cout<<"职工编号 : "<<endl;

cin>>Id;

cout<<"姓名 : "<<endl;

cin>>Name;

cout<<"性别 : "<<endl;

cin>>Sex;

cout<<"工资 : "<<endl;

cin>>Wage;

cout<<"出生时间 : (格式xxxx/xx/xx)"<<endl;

cin>>BirthDay;

cout<<"参加工作时间 : (格式xxxx/xx/xx)"<<endl;

cin>>WorkTime;

//从生日里提取出生的年份

int Pos = BirthDayfind_first_of('/');

string BirthYear;

BirthYearassign(BirthDay,0,Pos);

char chBirthYear[6];

strcpy(chBirthYear,BirthDayc_str());

//获取当前系统的年份

char NowYear[5];

time_t tnow = time(0);

strftime(NowYear , 5 , "%Y" , localtime(&tnow));

Age = atoi(NowYear)-atoi(chBirthYear); //计算年龄

}

Worker::VWorker()

{

}

void Worker::Display(){//display()同名函数,输出工人信息

cout<<"职工编号 : "<<Id<<endl;

cout<<"姓名 : "<<Name<<endl;

cout<<"性别 : "<<Sex<<endl;

cout<<"工资 : "<<Wage<<endl;

cout<<"出生时间 : "<<BirthDay<<endl;

cout<<"参加工作时间 : "<<WorkTime<<endl;

cout<<"年龄 : "<<Age<<endl;

}

void AddTeacher(vector <Teacher> TeaInfo) //新增老师对象

{

system("color 05A"); //设置当前窗口的背景色和前景色

Teacher TeaTemp;

(TeaInfo)push_back(TeaTemp);

}

void AddWoker(vector <Worker> WorkerInfo) //新增工人对象

{

system("color 05A");

Worker Wokertmp;

(WorkerInfo)push_back(Wokertmp);

}

void DisplayAll(vector <Teacher> TeaInfo,vector <Worker> WokerInfo){ //显示全部职工记录

system("color 05A");

cout<<"所有教师的信息:"<<endl;

vector <Teacher>::iterator pTeaInfo;

for (pTeaInfo=(TeaInfo)begin();(TeaInfo)empty()!=1&&pTeaInfo!=(TeaInfo)end();pTeaInfo++) //如果到达vector末尾,则退出

{

(pTeaInfo)Display();

cout<<endl;

}

cout<<"所有工人的信息:"<<endl;

vector <Worker>::iterator pWorkerInfo;

for (pWorkerInfo=(WokerInfo)begin();(WokerInfo)empty()!=1&&pWorkerInfo!=(WokerInfo)end();pWorkerInfo++) //如果到达vector末尾,则退出

{

(pWorkerInfo)Display();

cout<<endl;

}

cout<<"按Enter返回"<<endl;

getchar(); getchar();

}

void DisAvgTeacherAge(vector <Teacher> TeaInfo){ //查询老师平均年龄

system("color 05A");

int SumAge = 0;

vector <Teacher>::iterator pTeaInfo;

for (pTeaInfo=(TeaInfo)begin();(TeaInfo)empty()!=1&&pTeaInfo!=(TeaInfo)end();pTeaInfo++)//遍历老师容器

{ //如果到达vector末尾,则退出

SumAge+= (pTeaInfo)GetAge();

cout<<endl;

}

if((TeaInfo)size()!=0)

cout<<"教师的平均年龄为"<<SumAge/((TeaInfo)size())<<endl;

else cout<<"没有记录"<<endl;

cout<<"按Enter返回"<<endl;

getchar(); getchar();

}

void DisAvgWorkerAge(vector <Worker> WokerInfo){

system("color 05A");

int SumAge = 0;

vector <Worker>::iterator pWorkerInfo;

for (pWorkerInfo=(WokerInfo)begin();(WokerInfo)empty()!=1&&pWorkerInfo!=(WokerInfo)end();pWorkerInfo++) //如果到达vector末尾,则退出

{

SumAge+= (pWorkerInfo)GetAge();

cout<<endl;

}

if((WokerInfo)size()!=0)

cout<<"职工的平均年龄为"<<SumAge/((WokerInfo)size())<<endl;

else cout<<"没有记录"<<endl;

cout<<"按Enter键返回"<<endl;

getchar(); getchar();

}

void DelTeacher(vector <Teacher> TeaInfo){ //用于删除老师信息

system("color 05A");

bool Hflag=false;

string SearchName;

vector <Teacher>::iterator pTeaInfo;

cout<<"请输入您要删除的老师的姓名:"<<endl;

cout<<"姓名: ";

cin>>SearchName;

for(pTeaInfo=(TeaInfo)begin();(TeaInfo)empty() != 1&&pTeaInfo!=(TeaInfo)end();pTeaInfo++) //如果到达vector末尾,则退出

{

if (0==SearchNamecompare((pTeaInfo)GetName())) //如果找到要删除老师的姓名,则执行

{

Hflag=true; //找到老师

(TeaInfo)erase(pTeaInfo); //删除vector中指定的老师

continue;

}

}

if (false==Hflag) //如果没有该老师,则执行

{

cout<<"没有该老师!"<<endl;

}

cout<<"按Enter返回"<<endl;

getchar(); getchar();

}

void DelWorker(vector <Worker> WokerInfo) //用于删除工人信息

{

system("color 05A");

bool Hflag=false;

string SearchName;

vector <Worker>::iterator pWorkerInfo;

cout<<"请输入您要删除的工人的姓名:"<<endl;

cout<<"姓名: ";

cin>>SearchName;

for(pWorkerInfo=(WokerInfo)begin();(WokerInfo)empty() != 1&&pWorkerInfo!=(WokerInfo)end();pWorkerInfo++) //如果到达vector末尾,则退出

{

if (0==SearchNamecompare((pWorkerInfo)GetName())) //如果找到要删除工人的姓名,则执行

{

Hflag=true; //找到工人

(WokerInfo)erase(pWorkerInfo); //删除vector中指定的工人

continue;

}

}

if (false==Hflag) //如果没有该工人,则执行

{

cout<<"没有该老师!"<<endl;

}

cout<<"按Enter返回"<<endl;

getchar();getchar();

}

void SearchByName(vector <Teacher> TeaInfo,vector <Worker> WokerInfo){ //按名字查找职工信息

system("color 05A");

bool Hflag=false;

string SearchName;

vector <Teacher>::iterator pTeaInfo;

cout<<"请输入您要查找的职工的姓名:"<<endl;

cout<<"姓名: ";

cin>>SearchName;

for(pTeaInfo=(TeaInfo)begin();pTeaInfo!=(TeaInfo)end();pTeaInfo++)

{

if (0==SearchNamecompare((pTeaInfo)GetName())) //如果找到输入的职工,则执行

{

Hflag=true; //找到职工

cout<<"这个人是老师,他的信息为:"<<endl;

(pTeaInfo)Display(); //显示职工信息

continue;

}

}

vector <Worker>::iterator pWorkerInfo;

for(pWorkerInfo=(WokerInfo)begin();pWorkerInfo!=(WokerInfo)end();pWorkerInfo++)

{

if (0==SearchNamecompare((pWorkerInfo)GetName())) //如果找到输入的职工,则执行

{

Hflag=true; //找到职工

cout<<"这个人是老师,个人信息为:"<<endl;

(pWorkerInfo)Display(); //显示职工信息

continue;

}

}

if (false==Hflag)

{

cout<<"没有这个职工!"<<endl; //没有找到信息

}

cout<<"按Enter返回"<<endl; //返回

getchar(); getchar();

}

void DisTeacherByAcademy(vector <Teacher> TeaInfo){ //按系输出教师信息

system("color 05A");

bool Hflag=false;

string SearchName;

vector <Teacher>::iterator pTeaInfo;

while((TeaInfo)empty()!=1) { //输出所有指定系的老师

pTeaInfo=(TeaInfo)begin();

string Academy = (pTeaInfo)GetAcademy();

cout<<"系:"<<Academy<<","<<"该系的老师有:"<<endl;

for(pTeaInfo=(TeaInfo)begin();(TeaInfo)empty()!=1&&pTeaInfo!=(TeaInfo)end();){

if (0==Academycompare((pTeaInfo)GetAcademy()))

{

(pTeaInfo)Display();

cout<<endl;

(TeaInfo)erase(pTeaInfo);

pTeaInfo=(TeaInfo)begin();

}

else pTeaInfo++;

}

cout<<endl;

}

cout<<"按Enter返回"<<endl;

getchar(); getchar();

}

void WriteFile(vector <Teacher> TeaInfo,vector <Worker> WokerInfo) //生成新文件

{

FILE fp;

if (NULL==(fp=fopen("Employeetxt","w+")))

{

cout<<"打开文件错误"<<endl;

exit(-1);

}

vector <Worker>::iterator pWorkerInfo;

vector <Teacher>::iterator pTeaInfo;

for(pTeaInfo=(TeaInfo)begin();pTeaInfo!=(TeaInfo)end();pTeaInfo++) //写入vector中所有老师的信息

{

fputs("教师信息:\n",fp);

fprintf(fp,"姓名:%s\n",(pTeaInfo)GetName()c_str());

fprintf(fp,"年龄:%d\n",(pTeaInfo)GetAge());

fputs("\n",fp);

}

fputs("教师信息结束\n",fp);

for(pWorkerInfo=(WokerInfo)begin();pWorkerInfo!=(WokerInfo)end();pWorkerInfo++) //写入vector中所有老师的信息

{

fputs("职工信息:\n",fp);

fprintf(fp,"姓名:%s\n",(pWorkerInfo)GetName()c_str());

fprintf(fp,"年龄:%d\n",(pWorkerInfo)GetAge());

fputs("\n",fp);

}

fputs("职工信息结束\n",fp);

fclose(fp);

}

void Mainmenu(){//菜单界面

system("color 05A"); //设置当前窗口的背景色和前景色

cout<<" ╭――――――――――《教职工管理系统》―――――――――╮"<<endl;

cout<<" ∣ 请选择功能 ∣"<<endl;

cout<<" ├――――――――――――――――――――――――――――┤"<<endl;

cout<<" ∣ 1新建并输入职工数据 ∣"<<endl;

cout<<" ∣ 2按条件输出职工数据 ∣"<<endl;

cout<<" ∣ 3删除职工数据 ∣"<<endl;

cout<<" ∣ 0退出 ∣"<<endl;

cout<<" ╰――――――――――――――――――――――――――――╯"<<endl;

cout<<" ――――――――――――――――――――――――――――――"<<endl;

cout<<" 请选择您要服务的类别: " ;

}

void Insert(vector <Teacher> TeaInfo,vector <Worker> WorkerInfo) //增加职工数据菜单界面

{

system("color 05A"); //设置当前窗口的背景色和前景色

int select = -1;

while(select!=0)

{

cout<<" ╭――――――――――《增加职工数据》――――――――――╮"<<endl;

cout<<" ∣ 请选择操作: ∣"<<endl;

cout<<" ├――――――――――――――――――――――――――――┤"<<endl;

cout<<" ∣ 1增加一位教师记录 ∣"<<endl;

cout<<" ∣ 2增加一位工人记录 ∣"<<endl;

cout<<" ∣ 0返回主菜单 ∣"<<endl;

cout<<" ╰――――――――――――――――――――――――――――╯"<<endl;

cin>>select;

switch(select){

case 1:AddTeacher(TeaInfo);break;

case 2:AddWoker(WorkerInfo);break;

case 3:Mainmenu();break;

default:

cout<<"回到主菜单!"<<endl;

}

}

}

void Search(vector <Teacher> TeaInfo,vector <Worker> WorkerInfo) //查询职工数据菜单界面

{

system("color 05A"); //设置当前窗口的背景色和前景色

int select = -1;

while(select!=0)

{

cout<<" ╭――――――――――《查询职工数据》――――――――――╮"<<endl;

cout<<" ∣ 请选择操作: ∣"<<endl;

cout<<" ├――――――――――――――――――――――――――――┤"<<endl;

cout<<" ∣ 1显示全部职工记录 ∣"<<endl;

cout<<" ∣ 2按系输出教师信息 ∣"<<endl;

cout<<" ∣ 3按姓名检索所有信息 ∣"<<endl;

cout<<" ∣ 4计算教师平均年龄 ∣"<<endl;

cout<<" ∣ 5计算工人平均年龄 ∣"<<endl;

cout<<" ∣ 0返回主菜单 ∣"<<endl;

cout<<" ╰――――――――――――――――――――――――――――╯"<<endl;

cin>>select;

switch(select){

case 1:DisplayAll(TeaInfo,WorkerInfo);break;

case 2:DisTeacherByAcademy(TeaInfo);break;

case 3:SearchByName(TeaInfo,WorkerInfo);break;

case 4:DisAvgTeacherAge(TeaInfo);break;

case 5:DisAvgWorkerAge(WorkerInfo);break;

case 6:Mainmenu();break;

default:

cout<<"回到主菜单!"<<endl;

}

}

}

void Delete(vector <Teacher> TeaInfo,vector <Worker> WorkerInfo) //删除职工数据

{

system("color 05A"); //设置当前窗口的背景色和前景色

int select = -1;

while(select!=0)

{

cout<<" ╭――――――――――《删除职工数据》――――――――――╮"<<endl;

cout<<" ∣ 请选择操作: ∣"<<endl;

cout<<" ├――――――――――――――――――――――――――――┤"<<endl;

cout<<" ∣ 1删除一位教师记录 ∣"<<endl;

cout<<" ∣ 2删除一位工人记录 ∣"<<endl;

cout<<" ∣ 0返回主菜单 ∣"<<endl;

cout<<" ╰――――――――――――――――――――――――――――╯"<<endl;

cin>>select;

switch(select){

case 1:DelTeacher(TeaInfo);break;

case 2:DelWorker(WorkerInfo);break;

case 3:Mainmenu();break;

default:

cout<<"回到主菜单!"<<endl;

}

}

}

void MainCho(vector <Teacher> TeaInfo,vector <Worker> WorkerInfo)

{ //主菜单操作

int choice = -1;

while(choice!=0){

Mainmenu();

cin>>choice;

switch(choice){

case 1:Insert(TeaInfo,WorkerInfo);break;

case 2:Search(TeaInfo,WorkerInfo);break;

case 3:Delete(TeaInfo,WorkerInfo);break;

case 0:break;

default:

cout<<"操作错误!"<<endl;

}

}

}

void main() //主函数

{

vector <Teacher> TeaInfo; //

vector <Worker> WorkerInfo; //

vector <Teacher>::iterator pTeacher; //

vector <Worker>::iterator pWoker; //

pTeacher = TeaInfobegin(); //

pWoker = WorkerInfobegin(); //

MainCho(&TeaInfo,&WorkerInfo); //调用主要处理程序

WriteFile(&TeaInfo,&WorkerInfo); //存入文件操作

}

头文件:::

#ifndef H_STUDENT_HH

#define H_STUDENT_HH

#include "stdioh"

#include "stringh"

#include "malloch"

#define LEN sizeof(struct message_student) /一个结构体数组元素的长度/

#define numsubs 5 /学科数目/

typedef struct message_student /结构体定义/

{

char number[6];

char name[20];

char sex[4];

float subject[numsubs];

float score;

float average;

int index;

}student;

extern int numstus; /学生数目/

extern student pointer; /指向结构体数组/

extern int lens;

int menu_select(); /函数声明/

int openfile(student stu[]);

int findrecord(student stud[]);

int writetotext(student stud[]);

void welcome();

void display1();

void showtable();

void sort(student stu[]);

void deleterecord(student stu[],int i);

void addrecord(student stud[]);

void display(student stud[],int n1,int n2);

void amendrecord(student stud[]);

void count(student stud[]);

void sortnum(student stud[]);

void sortnum2(student stud[]);

void sortname(student stud[]);

void sortname2(student stud[]);

void sortcount(student stud[]);

void sortcount2(student stud[]);

void statistic(student stud[]);

void display1();

#endif

#include "headh"

int menu_select()

{

char c;

printf("\n\n");

printf(" | 1 增加学生记录 5统计信息 |\n");

printf(" | 2 查询学生记录 6打开文件 |\n");

printf(" | 3 修改学生记录 7保存文件 |\n");

printf(" | 4 学生纪录排序 8显示记录 |\n");

printf(" | 0退出系统 |\n");

printf("\n\n");

printf("请选择(0-8):");

c=getchar();

getchar();

return (c-'0');

}

#include "headh"

int findrecord(student stud[]) /查找信息/

{

char str[2];

int i,num;

if(numstus==0)

{

printf("没有可被查找的记录\n");

return -1;

}

else

{

printf("以何种方式查找?\n1学号\t2姓名\t3名次\n");

gets(str);

if(str[0]=='1') /按学号查找/

{

printf("请输入学号:");

gets(str);

for(i=0;i<=numstus;i++)

if(strcmp(str,stud[i]number)==0)

{

display(stud,i,i);

break;

}

else continue;

}

else if(str[0]=='2') /按姓名查找/

{

printf("请输入姓名:");

gets(str);

for(i=0;i<=numstus;i++)

if(strcmp(str,stud[i]name)==0)

{

display(stud,i,i);

break;

}

else continue;

}

else if(str[0]=='3') /按名次查找/

{

printf("请输入名次:");

scanf("%d",&num);

getchar();

for(i=0;i<=numstus;i++)

if(num==stud[i]index)

{

display(stud,i,i);

break;

}

else continue;

}

if(i>numstus)

{

printf("没有查找所要的信息。\n");

return -1;

}

return i;

}

}

#include"headh"

int openfile(student stu[])

{

int i=0,j;

FILE fp;

char filename[20],str[2];

if(numstus!=0)

{

printf("已经有记录存在,是否保存(y/n)");

gets(str);

if(str[0]=='y'||str[0]=='Y')

writetotext(stu);

}

printf("请输入文件名:");

gets(filename);

numstus=0;

if((fp=fopen(filename,"rb+"))==NULL)

{

printf("无法打开该文件\n");

return(-1);

}

fscanf(fp,"%d",&numstus);

fgetc(fp);

while(i<numstus)

{

fscanf(fp,"%s",stu[i]number);

fscanf(fp,"%s",stu[i]name);

fscanf(fp,"%s",stu[i]sex);

for(j=0;j<numsubs;j++)

fscanf(fp,"%f",&stu[i]subject[j]);

fscanf(fp,"%f",&stu[i]score);

fscanf(fp,"%f",&stu[i]average);

fscanf(fp,"%d",&stu[i]index);

i++;

}

fclose(fp);

printf("文件读取成功\n");

printf("是否显示纪录(y/n)");

gets(str);

if(str[0]=='y'||str[0]=='Y')

display(stu,0,numstus-1);

return(0);

}

#include "headh"

void sort(student stud[])

{

int i,j=0;

char str[5];

student p;

p=stud;

if(numstus==0)

{

printf("没有可供查询的记录!");

}

while(1)

{

for(i=0;;i++)

{

printf(" 请输入查询方式:");

printf("(直接输入回车则结束查询操作)\n");

printf("1按照学号\t");

printf("2按照姓名\t");

printf("3按照名次\n");

gets(str);

if(strlen(str)==0) break;

if(str[0]=='1')

{

printf("请输入排序次序:\n");

printf("1升序排列\t");

printf("2降序排列\n");

gets(str);

if(str[0]=='1')

sortnum2(p);

else

sortnum(p);

display(stud,0,numstus-1);

}

else if(str[0]=='2')

{

printf("请输入排序次序:\n");

printf("1升序排列\t");

printf("2降序排列\n");

gets(str);

if(str[0]=='1')

sortname2(p);

else

sortname(p);

display(stud,0,numstus-1);

}

else if(str[0]=='3')

{

printf("请输入排序次序:\n");

printf("1升序排列\t");

printf("2降序排列\n");

gets(str);

if(str[0]=='1')

sortcount2(p);

else

sortcount(p);

display(stud,0,numstus-1);

}

else printf("请输入1~3");

printf("是否退出排序(y/n)");

gets(str);

if(str[0]=='y'||str[0]=='Y') break;

}

return;

}

}

void sortnum(student stud[])

{

int i,j;

student temp;

student p;

p=stud;

for(i=0;i<numstus;i++)

for(j=0;j<numstus-i-1;j++)

{

if(strcmp(stud[j+1]number,stud[j]number)>0)

{

temp=(p+j);

(p+j)=(p+j+1);

(p+j+1)=temp;

}

}

}

void sortnum2(student stud[])

{

int i,j;

student temp;

student p;

p=stud;

for(i=0;i<numstus;i++)

for(j=0;j<numstus-i-1;j++)

{

C语言程序设计(图书管理系统)//源代码一定要运行的起来

#ifndef _SIMPLE_BOOK_MANAGER_H#define _SIMPLE_BOOK_MANAGER_Htypedef struct BookRecord{int index; //编号char catalog[20]; /...
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