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程序設計設計學生成績管理系統

發布時間: 2021-01-11 16:23:44

⑴ C程序設計:學生成績管理系統

前幾天剛幫人寫了一個,稍加改動後和你的要求基本一致。
發給你了,請送分。

⑵ C語言程序設計 學生成績管理系統 (急)

針對你的描述C語言程序設計 學生成績管理系統 (急),
我們可以為你提供一專份適用於初學者的代碼,
有別屬的要求也可以與我們聯系,
聯系我們需要提供你的問題和電子郵件,
有可能幫你,但是絕對救急,
請用BaiHi為我留言,

此回復對於所有需求和和來訪者有效,

ES:\\

⑶ c語言程序設計學生成績管理系統


#include "stdio.h"

/*定義學生結構體*/

struct Student

{

char ID[20];

char Name[20];

float Mark1;

float Mark2;

float Mark3;

float Average;

};

/*聲明學生數組及學生數量*/

struct Student students[1000];

int num=0;

/*求平均值*/

float Avg(struct Student stu)

{

return (stu.Mark1+stu.Mark2+stu.Mark3)/3;

}

/*通過學號返回數組下標*/

int Student_SearchByIndex(char id[])

{

int i;

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

{

if (strcmp(students[i].ID,id)==0)

{

return i;

}

}

return -1;

}

/*通過姓名返回數組下標*/

int Student_SearchByName(char name[])

{

int i;

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

{

if (strcmp(students[i].Name,name)==0)

{

return i;

}

}

return -1;

}

/*顯示單條學生記錄*/

void Student_DisplaySingle(int index)

{

printf("%10s%10s%8s%8s%8s%10s\n","學號","姓名","成績","成績","成績","平均成績");

printf("-------------------------------------------------------------\n");

printf("%10s%10s%8.2f%8.2f%8.2f%10.2f\n",students[index].ID,students[index].Name,

students[index].Mark1,students[index].Mark2,students[index].Mark3,students[index].Average);

}

/*插入學生信息*/

void Student_Insert()

{

while(1)

{

printf("請輸入學號:");

scanf("%s",&students[num].ID);

getchar();

printf("請輸入姓名:");

scanf("%s",&students[num].Name);

getchar();

printf("請輸入成績:");

scanf("%f",&students[num].Mark1);

getchar();

printf("請輸入成績:");

scanf("%f",&students[num].Mark2);

getchar();

printf("請輸入成績:");

scanf("%f",&students[num].Mark3);

getchar();

students[num].Average=Avg(students[num]);

num++;

printf("是否繼續?(y/n)");

if (getchar()=='n')

{

break;

}

}

}

/*修改學生信息*/

void Student_Modify()

{

float mark1,mark2,mark3;

while(1)

{

char id[20];

int index;

printf("請輸入要修改的學生的學號:");

scanf("%s",&id);

getchar();

index=Student_SearchByIndex(id);

if (index==-1)

{

printf("學生不存在!\n");

}

else

{

printf("你要修改的學生信息為:\n");

Student_DisplaySingle(index);

printf("-- 請輸入新值--\n");

printf("請輸入學號:");

scanf("%s",&students[index].ID);

getchar();

printf("請輸入姓名:");

scanf("%s",&students[index].Name);

getchar();

printf("請輸入成績:");

scanf("%f",&students[index].Mark1);

getchar();

printf("請輸入成績:");

scanf("%f",&students[index].Mark2);

getchar();

printf("請輸入成績:");

scanf("%f",&students[index].Mark3);

getchar();

students[index].Average=Avg(students[index]);

}

printf("是否繼續?(y/n)");

if (getchar()=='n')

{

break;

}

}

}

/*刪除學生信息*/

void Student_Delete()

{

int i;

while(1)

{

char id[20];

int index;

printf("請輸入要刪除的學生的學號:");

scanf("%s",&id);

getchar();

index=Student_SearchByIndex(id);

if (index==-1)

{

printf("學生不存在!\n");

}

else

{

printf("你要刪除的學生信息為:\n");

Student_DisplaySingle(index);

printf("是否真的要刪除?(y/n)");

if (getchar()=='y')

{

for (i=index;i<num-1;i++)

{

students[i]=students[i+1];

}

num--;

}

getchar();

}

printf("是否繼續?(y/n)");

if (getchar()=='n')

{

break;

}

}

}

/*按姓名查詢*/

void Student_Select()

{

while(1)

{

char name[20];

int index;

printf("請輸入要查詢的學生的姓名:");

scanf("%s",&name);

getchar();

index=Student_SearchByName(name);

if (index==-1)

{

printf("學生不存在!\n");

}

else

{

printf("你要查詢的學生信息為:\n");

Student_DisplaySingle(index);

}

printf("是否繼續?(y/n)");

if (getchar()=='n')

{

break;

}

}

}

/*按平均值排序*/

void Student_SortByAverage()

{

int i,j;

struct Student tmp;

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

{

for (j=1;j<num-i;j++)

{

if (students[j-1].Average<students[j].Average)

{

tmp=students[j-1];

students[j-1]=students[j];

students[j]=tmp;

}

}

}

}

/*顯示學生信息*/

void Student_Display()

{

int i;

printf("%10s%10s%8s%8s%8s%10s\n","學號","姓名","成績","成績","成績","平均成績");

printf("-------------------------------------------------------------\n");

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

{

printf("%10s%10s%8.2f%8.2f%8.2f%10.2f\n",students[i].ID,students[i].Name,

students[i].Mark1,students[i].Mark2,students[i].Mark3,students[i].Average);

}

}

/*將學生信息從文件讀出*/

void IO_ReadInfo()

{

FILE *fp;

int i;

if ((fp=fopen("Database.txt","rb"))==NULL)

{

printf("不能打開文件!\n");

return;

}

if (fread(&num,sizeof(int),1,fp)!=1)

{

num=-1;

}

else

{

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

{

fread(&students[i],sizeof(struct Student),1,fp);

}

}

fclose(fp);

}

/*將學生信息寫入文件*/

void IO_WriteInfo()

{

FILE *fp;

int i;

if ((fp=fopen("Database.txt","wb"))==NULL)

{

printf("不能打開文件!\n");

return;

}

if (fwrite(&num,sizeof(int),1,fp)!=1)

{

printf("寫入文件錯誤!\n");

}

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

{

if (fwrite(&students[i],sizeof(struct Student),1,fp)!=1)

{

printf("寫入文件錯誤!\n");

}

}

fclose(fp);

}

/*主程序*/

main()

{

int choice;

IO_ReadInfo();

while(1)

{

/*主菜單*/

printf("\n------ 學生成績管理系統------\n");

printf("1. 增加學生記錄\n");

printf("2. 修改學生記錄\n");

printf("3. 刪除學生記錄\n");

printf("4. 按姓名查詢學生記錄\n");

printf("5. 按平均成績排序\n");

printf("6. 退出\n");

printf("請選擇(1-6):");

scanf("%d",&choice);

getchar();

switch(choice)

{

case 1:

Student_Insert();

break;

case 2:

Student_Modify();

break;

case 3:

Student_Delete();

break;

case 4:

Student_Select();

break;

case 5:

Student_SortByAverage();

Student_Display();

break;

case 6:

exit();

break;

}

IO_WriteInfo();

}

}
你的串號我已經記下,採納後我會幫你製作

⑷ 簡單學生成績管理系統程序設計

看可以不咯?
#include<stdio.h>
int avgGrade(int a[50])
{
int i,sum=0,max=0,min=0;
double avg=0.0;

max=a[0];
min=a[0];

for(i=0;i<50;i++)
{
sum+=a[i];
if(a[i]>max)
max=a[i];
if(a[i]<min)
min=a[i];
}
avg=(double)sum/50;

printf("平均成績為%lf,最高成績為%d,最低成績為%d\n",avg,max,min);

return 0;
}
int compositor(int a[50])
{
int i,j,n,temp=0;

printf("請輸入您要排序的方式(0:升序,1:降序):\n");
scanf("%d",&n);

for(i=0;i<50;i++)
{
for(j=0;j<i;j++)
{
if(n==0)
{
if(a[j]>a[i])
{
temp=a[i];
a[i]=a[j];
a[j]=temp;
}
}
else
{
if(a[j]<a[i])
{
temp=a[i];
a[i]=a[j];
a[j]=temp;
}
}
}
}
for(i=0;i<50;i++)
{
printf("%d",a[i]);
}
}
int insertGrade(int a[50])
{
int i,n;
printf("請輸入你要插入的成績:\n");
scanf("%d",&n);
for(i=0;i<50;i++)
if(n>a[i])
{
for(s=49;s>=i;s--)
a[s+1]=a[s];
break;
}
a[i]=n;
}
int deleteGrade(int a[50])
{
int x,i,j;
printf("請輸入你要刪除的成績:\n");
scanf("%d",&x);
for(i=0;i<10;i++)
{
if(a[i]==x)
for(j=i+1;j<10;j++)
a[i]=a[j];
a[j]='\0';
}
}
void main()
{
int n,i,a[50];

printf("請輸入50個學生的成績:\n");
for(i=0;i<50;i++)
{
scanf("%d",&a[i]);
}

while(1)
{
printf ("--------------------------\n");
printf ("請選擇您的功能:\n\n");
printf (" 0 錄入成績\n");
printf (" 1 輸出成績\n");
printf (" 2 輸出平均分、最高分、最低分\n");
printf (" 3 成績降序或升序排列\n");
printf (" 4 插入一個成績\n");
printf (" 5 刪除用戶給定的成績\n");
printf (" 6 退出\n\n");
printf ("--------------------------\n");
scanf("%d",n);

switch(n)
{
case 0:
printf("請輸入50個學生的成績:\n");
for(i=0;i<50;i++)
{
scanf("%d",&a[i]);
}
break;
case 1:
for(i=0;i<50;i++)
{
printf("%d",a[i]);
}
break;
case 2:
avgGrade(a);
break;
case 3:
compositor(a);
break;
case 4:
insertGrade(a);
break;
case 5:
deleteGrade(a);
break;
case 6:
exit (0);
}
}
return 0;
}

⑸ c語言程序設計 學生成績管理系統

#include "stdio.h"

/*定義學生結構體*/

struct Student

{

char ID[20];

char Name[20];

float Mark1;

float Mark2;

float Mark3;

float Average;

};

/*聲明學生數組及學生數量*/

struct Student students[1000];

int num=0;

/*求平均值*/

float Avg(struct Student stu)

{

return (stu.Mark1+stu.Mark2+stu.Mark3)/3;

}

/*通過學號返回數組下標*/

int Student_SearchByIndex(char id[])

{

int i;

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

{

if (strcmp(students[i].ID,id)==0)

{

return i;

}

}

return -1;

}

/*通過姓名返回數組下標*/

int Student_SearchByName(char name[])

{

int i;

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

{

if (strcmp(students[i].Name,name)==0)

{

return i;

}

}

return -1;

}

/*顯示單條學生記錄*/

void Student_DisplaySingle(int index)

{

printf("%10s%10s%8s%8s%8s%10s\n","學號","姓名","成績","成績","成績","平均成績");

printf("-------------------------------------------------------------\n");

printf("%10s%10s%8.2f%8.2f%8.2f%10.2f\n",students[index].ID,students[index].Name,

students[index].Mark1,students[index].Mark2,students[index].Mark3,students[index].Average);

}

/*插入學生信息*/

void Student_Insert()

{

while(1)

{

printf("請輸入學號:");

scanf("%s",&students[num].ID);

getchar();

printf("請輸入姓名:");

scanf("%s",&students[num].Name);

getchar();

printf("請輸入成績:");

scanf("%f",&students[num].Mark1);

getchar();

printf("請輸入成績:");

scanf("%f",&students[num].Mark2);

getchar();

printf("請輸入成績:");

scanf("%f",&students[num].Mark3);

getchar();

students[num].Average=Avg(students[num]);

num++;

printf("是否繼續?(y/n)");

if (getchar()=='n')

{

break;

}

}

}

/*修改學生信息*/

void Student_Modify()

{

float mark1,mark2,mark3;

while(1)

{

char id[20];

int index;

printf("請輸入要修改的學生的學號:");

scanf("%s",&id);

getchar();

index=Student_SearchByIndex(id);

if (index==-1)

{

printf("學生不存在!\n");

}

else

{

printf("你要修改的學生信息為:\n");

Student_DisplaySingle(index);

printf("-- 請輸入新值--\n");

printf("請輸入學號:");

scanf("%s",&students[index].ID);

getchar();

printf("請輸入姓名:");

scanf("%s",&students[index].Name);

getchar();

printf("請輸入成績:");

scanf("%f",&students[index].Mark1);

getchar();

printf("請輸入成績:");

scanf("%f",&students[index].Mark2);

getchar();

printf("請輸入成績:");

scanf("%f",&students[index].Mark3);

getchar();

students[index].Average=Avg(students[index]);

}

printf("是否繼續?(y/n)");

if (getchar()=='n')

{

break;

}

}

}

/*刪除學生信息*/

void Student_Delete()

{

int i;

while(1)

{

char id[20];

int index;

printf("請輸入要刪除的學生的學號:");

scanf("%s",&id);

getchar();

index=Student_SearchByIndex(id);

if (index==-1)

{

printf("學生不存在!\n");

}

else

{

printf("你要刪除的學生信息為:\n");

Student_DisplaySingle(index);

printf("是否真的要刪除?(y/n)");

if (getchar()=='y')

{

for (i=index;i<num-1;i++)

{

students[i]=students[i+1];

}

num--;

}

getchar();

}

printf("是否繼續?(y/n)");

if (getchar()=='n')

{

break;

}

}

}

/*按姓名查詢*/

void Student_Select()

{

while(1)

{

char name[20];

int index;

printf("請輸入要查詢的學生的姓名:");

scanf("%s",&name);

getchar();

index=Student_SearchByName(name);

if (index==-1)

{

printf("學生不存在!\n");

}

else

{

printf("你要查詢的學生信息為:\n");

Student_DisplaySingle(index);

}

printf("是否繼續?(y/n)");

if (getchar()=='n')

{

break;

}

}

}

/*按平均值排序*/

void Student_SortByAverage()

{

int i,j;

struct Student tmp;

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

{

for (j=1;j<num-i;j++)

{

if (students[j-1].Average<students[j].Average)

{

tmp=students[j-1];

students[j-1]=students[j];

students[j]=tmp;

}

}

}

}

/*顯示學生信息*/

void Student_Display()

{

int i;

printf("%10s%10s%8s%8s%8s%10s\n","學號","姓名","成績","成績","成績","平均成績");

printf("-------------------------------------------------------------\n");

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

{

printf("%10s%10s%8.2f%8.2f%8.2f%10.2f\n",students[i].ID,students[i].Name,

students[i].Mark1,students[i].Mark2,students[i].Mark3,students[i].Average);

}

}

/*將學生信息從文件讀出*/

void IO_ReadInfo()

{

FILE *fp;

int i;

if ((fp=fopen("Database.txt","rb"))==NULL)

{

printf("不能打開文件!\n");

return;

}

if (fread(&num,sizeof(int),1,fp)!=1)

{

num=-1;

}

else

{

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

{

fread(&students[i],sizeof(struct Student),1,fp);

}

}

fclose(fp);

}

/*將學生信息寫入文件*/

void IO_WriteInfo()

{

FILE *fp;

int i;

if ((fp=fopen("Database.txt","wb"))==NULL)

{

printf("不能打開文件!\n");

return;

}

if (fwrite(&num,sizeof(int),1,fp)!=1)

{

printf("寫入文件錯誤!\n");

}

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

{

if (fwrite(&students[i],sizeof(struct Student),1,fp)!=1)

{

printf("寫入文件錯誤!\n");

}

}

fclose(fp);

}

/*主程序*/

main()

{

int choice;

IO_ReadInfo();

while(1)

{

/*主菜單*/

printf("\n------ 學生成績管理系統------\n");

printf("1. 增加學生記錄\n");

printf("2. 修改學生記錄\n");

printf("3. 刪除學生記錄\n");

printf("4. 按姓名查詢學生記錄\n");

printf("5. 按平均成績排序\n");

printf("6. 退出\n");

printf("請選擇(1-6):");

scanf("%d",&choice);

getchar();

switch(choice)

{

case 1:

Student_Insert();

break;

case 2:

Student_Modify();

break;

case 3:

Student_Delete();

break;

case 4:

Student_Select();

break;

case 5:

Student_SortByAverage();

Student_Display();

break;

case 6:

exit();

break;

}

IO_WriteInfo();

}

}
請採納。

⑹ 程序設計一個學生成績管理系統~~~

|依靠Baihi聯系
有時間能處理你的題目
我們可以根據本要求提供一份相當於學生水平的源代碼內

6 |容 ES:\\
5 | 交易提醒:預付定金有風險
7 |
1 | 北京易軟個人軟體
5 | 全職軟體開發團隊
6 | 十年信譽鑄成品質
1 | 速度專業積累效率
5 | 開發信息管理系統更有優惠

⑺ C語言程序設計:學生成績管理系統(用文件或鏈表做)

插入排序
=
=~冒泡
排序
也好啊~
鏈表排序注意
指針的處理

⑻ C語言程序設計學生成績管理系統

隨便寫了些
不滿意你自己在改改吧
#include <stdio.h>
#include <malloc.h>
#include <memory.h>
#include <string.h>

typedef struct student{
int Num;
char name[12];
int age;
struct student* pNext;
}STUDENT,*PSTUDENT;
#define LEN sizeof(STUDENT)
PSTUDENT pHeader,pNail;
int n=0;
void PrintMenu();
bool ExistStudent(int Num);
void InsertInfo();
bool DeleteInfo(int Num);
bool UpdateInfo(int Num,PSTUDENT pNewInfo);
void PrintInfo();
int main()
{
PrintMenu();
int iSel=0;
while(1)
{
printf("輸入操作選擇:");
scanf("%d",&iSel);
switch(iSel)
{
case 0:
return 0;
case 1:
PrintInfo();
continue;
case 2:
InsertInfo();
continue;
case 3:
{
int num=0;
printf("輸入要刪除的學生學號:");
scanf("%d",&num);
if(DeleteInfo(num))
printf("刪除成功!\n");
else
printf("刪除失敗!\n");
continue;
}
case 4:
{
int num=0;
printf("輸入要修改的學生學號:");
scanf("%d",&num);
STUDENT stu={0};
printf("輸入該學生的新信息(空格分隔):");
scanf("%d%s%d",&stu.Num,&stu.name,&stu.age);
if(UpdateInfo(num,&stu))
printf("修改成功!\n");
else
printf("修改失敗!\n");
continue;
}
continue;
default:
continue;
}
}
return 0;
}
void PrintMenu()
{
printf("******操作菜單******\n");
printf("* 1. 列印學生信息\n");
printf("* 2. 添加學生信息\n");
printf("* 3. 刪除學生信息\n");
printf("* 4. 修改學生信息\n");
printf("* 0. 退出系統\n");
printf("*********************\n");
}

void InsertInfo()
{
PSTUDENT pCur;
printf("請輸入學生記錄(各元素用空格分隔,輸入學號為0時停止)\n");
while(true)
{
pCur = (PSTUDENT)malloc(LEN);
memset(pCur,NULL,LEN);
printf("==>:");
scanf("%d%s%d",&pCur->Num,pCur->name,&pCur->age);
if(pCur->Num==0)
break;
if(ExistStudent(pCur->Num))
{
printf("該學生信息已經存在!\n");
break;
}
if(n==0)
{

pNail=pHeader=pCur;
pHeader->pNext=NULL;
}
else
{
pNail->pNext=pCur;
pNail=pCur;
pCur->pNext=NULL;
}
n++;
}
}
bool DeleteInfo(int Num)
{
PSTUDENT pStu=pHeader;
if(!pStu)
return false;
for(pStu;pStu!=NULL;pStu=pStu->pNext)
{
if(Num==pStu->Num)
{

pHeader=pStu->pNext;
return true;
}
else if(pStu->pNext&&Num==pStu->pNext->Num)
{
pStu->pNext=pStu->pNext->pNext;
return true;
}
}
return false;
}
bool UpdateInfo(int Num,PSTUDENT pNewInfo)
{
PSTUDENT pStu=pHeader;
if(!pStu)
return false;
if(Num!=pNewInfo->Num&&ExistStudent(pNewInfo->Num))
return false;
for(pStu;pStu!=NULL;pStu=pStu->pNext)
{
if(Num==pStu->Num)
{
pStu->Num=pNewInfo->Num;
memset(pStu->name,0,sizeof(pStu->name));
strcpy(pStu->name,pNewInfo->name);
pStu->age=pNewInfo->age;
return true;
}
}
return true;
}
void PrintInfo()
{
PSTUDENT pStu=pHeader;
if(!pStu)
{
printf("沒有學生信息!\n");
return;
}
for(pStu;pStu!=NULL;pStu=pStu->pNext)
printf("學號:%d 姓名:%s 年齡:%d\n",pStu->Num,pStu->name,pStu->age);
}
bool ExistStudent(int Num)
{
PSTUDENT pStu=pHeader;
if(!pStu)
return false;
for(pStu;pStu!=NULL;pStu=pStu->pNext)
{
if(Num==pStu->Num)
return true;
}
return false;
}

⑼ C語言程序設計 班級學生成績管理系統

#include <stdio.h>
#include <malloc.h>
#include <string.h>
#include <conio.h>

#define ADDRFILE "c:\\addrlist.txt"

typedef struct tagLinkedList
{
char name[30];
char tel[30];
char addr[100];

struct tagLinkedList *prev;
struct tagLinkedLIst *next;
}ADDR;

ADDR *g_pAddrHead = NULL;
ADDR *g_pFind;
int g_bSaved = 1;

void get_addrlist(void);
int add_list(const ADDR *addr);
int find_list(const char *name);
void SetHeadPosition(void);
void SetTailPosition(void);

void Add_addr(void);
void Find_addr(void);
void Modify_addr(void);
void Delete_addr(void);
void Print_addr(void);
void Save_addr(void);
void Remove_addr(void);

void main(void)
{

int ch;

get_addrlist();

puts("通訊錄程序 Version 1.0");

while(1)
{
printf("\n[1]新增 [2]搜索 [3]修改 [4]刪除 [5]輸出 [S]儲存 [Q]退出");

ch = getch();

switch(ch)
{
case '1': Add_addr();break;
case '2': Find_addr();break;
case '3': Modify_addr();break;
case '4': Delete_addr();break;
case '5': Print_addr();break;
case 's':
case 'S': Save_addr();break;
case 'q':
case 'Q':
if(g_bSaved == 0)
{
printf("\n\n修改後的數據需要儲存嗎?(y/n)?");
ch = getchar();
if(ch == 'Y' || ch == 'y') Save_addr();
}

Remove_addr(); exit(1);
default : printf("\n\n 請按1~5或S/Q健.\n\n");break;
}
}
}

void get_addrlist(void)
{
ADDR addr;
FILE *fp;

fp = fopen(ADDRFILE,"rb");

if(fp == NULL)
{
perror("open file error;");
return;
}

while(!feof(fp))
{
fread(&addr,1,sizeof(ADDR),fp);

if(ferror(fp))
{
fclose(fp);
perror("file read error;");
return;
}

if(feof(fp))break;

if(add_list(&addr) == 0)
{
printf(".\n");
}
}

fclose(fp);
}

int add_list(const ADDR *addr)
{
ADDR *plocal,*pn = g_pAddrHead;

SetHeadPosition();

if(g_pAddrHead == NULL)
{
plocal = malloc(sizeof(ADDR));
memset(plocal,0,sizeof(ADDR));

if(plocal == NULL)
{
return 0;
}

g_pAddrHead = plocal;
g_pAddrHead->prev = NULL;
g_pAddrHead->next = NULL;
}
else
{
plocal = malloc(sizeof(ADDR));
memset(plocal,0,sizeof(ADDR));

if(plocal == NULL)
{
return 0;
}

while(pn->next)
{
pn = pn->next;
}

pn->next = plocal;
plocal->prev = pn;
plocal->next = NULL;

}

strcpy(plocal->name,addr->name);
strcpy(plocal->tel,addr->tel);
strcpy(plocal->addr,addr->addr);

return 1;
}

int find_list(const char *name)
{
ADDR *plocal;

SetHeadPosition();

plocal = g_pAddrHead;

while(plocal)
{
if(strstr(plocal->name,name))
{
g_pFind = plocal;
return 1;
}
plocal = plocal->next;
}

return 0;
}

void SetHeadPosition(void)
{
if(g_pAddrHead == NULL) return;

while(g_pAddrHead->prev)
{
g_pAddrHead = g_pAddrHead->prev;
}
}

void SetTailPosition(void)
{
if(g_pAddrHead == NULL) return;

while(g_pAddrHead->next)
{
g_pAddrHead = g_pAddrHead->next;
}
}

void Remove_addr(void)
{
ADDR *plocal;

if(g_pAddrHead == NULL) return;

SetHeadPosition();

while(g_pAddrHead)
{
plocal = g_pAddrHead->next;

free(g_pAddrHead);

g_pAddrHead = plocal;
}

g_pAddrHead = NULL;

}

void Add_addr(void)
{
ADDR addr;

memset(&addr,0,sizeof(ADDR));

printf("\n\nName: ");gets(addr.name);
if(strlen(addr.name) == 0) return;

printf("TEL: ");gets(addr.tel);
printf("ADDR: ");gets(addr.addr);

if(find_list(addr.name) == 1)
{
printf("\n已經存在的姓名.\n\n");
puts(g_pFind->name);
puts(g_pFind->tel);
puts(g_pFind->addr);
return;
}

if(add_list(&addr))
{
g_bSaved = 0;
printf("\n儲存完畢.\n\n");
}
}

void Find_addr(void)
{
char buff[100] ={0,};
ADDR *plocal;

printf("\n\n請輸入要查找的姓名/電話/地址.\n");
printf("姓名/電話/地址 :");gets(buff);

if(strlen(buff) == 0) return;

SetHeadPosition();

plocal = g_pAddrHead;
g_pFind = NULL;

while(plocal)
{
if(strstr(plocal->name,buff))
{
g_pFind = plocal;
break;
}

if(strstr(plocal->tel,buff))
{
g_pFind = plocal;
break;
}

if(strstr(plocal->addr,buff))
{
g_pFind = plocal;
break;
}
plocal = plocal->next;
}

if(g_pFind)
{
puts(g_pFind->name);
puts(g_pFind->tel);
puts(g_pFind->addr);
}
else
{
printf("\n\n搜索不到要找的%s.\n\n",buff);
}
}

void Modify_addr(void)
{
char name[100] = {0,};
ADDR addr;

while(1)
{
printf("\n\n要修改的姓名: ");gets(name);

if(strlen(name) == 0) return;

if(find_list(name) == 0)
{
puts("輸入的姓名不存在.");
continue;
}
break;
}

printf("\n%s的通訊錄如下:\n\n",name);
puts(g_pFind->name);
puts(g_pFind->tel);
puts(g_pFind->addr);

printf("\n輸入要修改的姓名/電話/地址.\n\n");

printf("NAME: ");gets(addr.name);
printf("TEL : ");gets(addr.tel);
printf("ADDR: ");gets(addr.addr);

if(strlen(addr.name)==0) strcpy(addr.name,name);

strcpy(g_pFind->name,addr.name);
strcpy(g_pFind->tel,addr.tel);
strcpy(g_pFind->addr,addr.addr);

g_bSaved = 0;

printf("%s的通訊錄修改成功.\n",name);
}

void Delete_addr(void)
{
char name[100] ={0,};
ADDR *plocal;
int ch;

while(1)
{
printf("\n\n要刪除的姓名: ");gets(name);

if(strlen(name)==0) return;

if(find_list(name) == 0)
{
puts("要刪除的通訊錄不存在.");
continue;
}
break;
}

puts(g_pFind->name);
puts(g_pFind->tel);
puts(g_pFind->addr);

printf("確定要刪除%s的通訊錄嗎(y/n)?",name);
ch = getch();
fflush(stdin);

if(ch == 'Y'||ch == 'y')
{
if(g_pFind->prev == NULL)
{
if(g_pFind->next == NULL)
{
free(g_pFind);
g_pAddrHead = NULL;
}
else
{
plocal = g_pFind->next;
free(g_pFind);
plocal->prev =NULL;
g_pAddrHead = plocal;
}
}
else if(g_pFind->next == NULL)
{
plocal = g_pFind->prev;
free(g_pFind);
plocal->next =NULL;
g_pAddrHead = plocal;
}
else
{
plocal = g_pFind->prev;
plocal->next = g_pFind->next;

plocal = g_pFind->next;
plocal->prev = g_pFind->prev;

free(g_pFind);
g_pAddrHead = plocal;
}

g_bSaved = 0;
printf("\n\n刪除完畢.\n\n");
}
}

void Print_addr(void)
{
int count = 1;
ADDR *plocal;

SetHeadPosition();

if(g_pAddrHead == NULL)
{
printf("\n\n無任何數據\n");
return;
}

plocal = g_pAddrHead;
while(plocal->prev)
{
plocal=plocal->prev;
}

printf("\n\n");

while(plocal)
{
printf("NO.%d\n",count++);
puts(plocal->name);
puts(plocal->tel);
printf("%s\n\n",plocal->addr);

printf("請按任意一健(結束:q)\n\n");
getch();
if(getch() == 'q')return;

plocal=plocal->next;
}
}

void Save_addr(void)
{
ADDR *plocal, *pn;
FILE *fp;

if(g_pAddrHead == NULL) return;

fp = fopen(ADDRFILE,"w+b");

if(fp == NULL)
{
perror("file open error;");
return;
}

SetHeadPosition();

plocal = g_pAddrHead;

while(plocal)
{
pn = plocal->next;

plocal = pn;
}

printf("\n所有數據已經儲存完畢.");
g_bSaved = 1;

fclose(fp);
}

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