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18408001236 6 years ago
parent a1be0034bb
commit 211d0d534c
2 changed files with 326 additions and 16 deletions
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16
显示函数.c
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@ -1,16 +0,0 @@
void display()
{
FILE *fp;
int i,count=0;
fp=fopen("data.txt","r");
while(!feof(fp))
{
if(fread(&addrinfo[count],LEN,1,fp)==1)
count++;
}
fclose(fp);
printf("name occupation telephone email address\t\n");
for(i=0;i<count;i++)
printf(FORMAT,DATA);
}

326
课程设计源代码_通讯录管理系统_计算机类1812_18408001236_李霖.c
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#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<dos.h>
#include<string.h>
#define LEN sizeof(struct addritem)
#define FORMAT "%-15s%-20s%-10s%-15s%-30s%\n"//规定输出格式
#define DATA addrinfo[i].name,addrinfo[i].occu,addrinfo[i].tel,addrinfo[i].email,addrinfo[i].address//结构体数组元素中所有成员，方便引用
struct addritem
{
char name[10];
char occu[10];
char address[35];
char tel[15];
char email[25];
};
struct addritem addrinfo[100];
void input();
void search();
void update();
void del();
void display();
void sort();
void menu();
void menu()
{
system("cls");
printf("\n\n\n\n\n");
printf("\t\t|----------contact--------|\n");
printf("\t\t|0.exit |\n");
printf("\t\t|1.input record |\n");
printf("\t\t|2.search record |\n");
printf("\t\t|3.update record |\n");
printf("\t\t|4.delete record |\n");
printf("\t\t|5.sort |\n");
printf("\t\t|6.display |\n");
printf("\t\t|-------------------------|\n\n");
printf("\t\t\tchoose(0-6):");
}
int main()
{
int n;
menu();
scanf("%d",&n);
while(n)
{
switch(n)
{ case 1: input(); break;
case 2: search(); break;
case 3: update(); break;
case 4: del(); break;
case 5: sort(); break;
case 6: display(); break;
default:break;
}
getch();
menu();
scanf("%d",&n);
}
}
void input()
{
int i,count=0;//count用来记录通讯录中联系人的个数
char ch[2];//用来记录用户的输入
FILE *fp;
if((fp=fopen("data.txt","a+"))==NULL)//创建一个文件，如果文件打开失败则返回空值
{
printf("can not open\n");
return;
}
while(!feof(fp))//判断文件是否结束，如果没有调用fread函数统计记录条数
{
if(fread(&addrinfo[count],LEN,1,fp)==1)//LEN统计结构体类型addritem中变量所有成员的长度，即所占的字节数
count++;
}
fclose(fp);
if(count==0)
printf("No contact record!\n");
else
{
system("cls");
display();
}
if((fp=fopen("data.txt","wb"))==NULL)
{
printf("can not open!\n");
return;
}
for(i=0;i<count;i++)
fwrite(&addrinfo[i],LEN,1,fp);//将addrinfo的结构体数组写入磁盘文件
printf("please input(y/n)");
scanf("%s",ch);
while(strcmp(ch,"y")==0||(ch,"Y")==0)//字符串的比较函数
{ printf("name:");
scanf("%s",&addrinfo[count].name);//count变量记录结构体数组当前 可以输入的位置
for(i=0;i<count;i++)
if(strcmp(addrinfo[i].name,addrinfo[count].name)==0)
{ printf("the name already exists,press any key to continue.");
getch();
fclose(fp);
return;
} //若通讯录找不到联系人就输入其他信息
printf("occupation:");
scanf("%s",&addrinfo[count].occu);
printf("telephone:");
scanf("%s",&addrinfo[count].tel);
printf("address:");
scanf("%s",&addrinfo[count].address);
printf("email:");
scanf("%s",&addrinfo[count].email);
if(fwrite(&addrinfo[count],LEN,1,fp)!=1)//新录入的联系人信息写入磁盘文件
{printf("can not save thr record!");
getch();
}
else
{printf("%s saved!\n",addrinfo[count].name);
count++;
}
printf("continue?(y/n):");
scanf("%s",ch);
}
fclose(fp);
printf("ok\n");
}
void search()
{
FILE *fp;
int i,count=0;
char ch[2],name[15];
if((fp=fopen("data.txt","r"))==NULL)
{
printf("can not open\n");
return;
}
while(!feof(fp))//判断是否到达文件尾部，如果文件没有结束使用if语句读取
{
if(fread(&addrinfo[count],LEN,1,fp)==1)
count++;
}
fclose(fp);
if(count==0)
{
printf("no record\n");
return;
}
printf("please input the name:");
scanf("%s",name);
for(i=0;i<count;i++)
if(strcmp(name,addrinfo[i].name)==0)
{
printf("find the contact,display?(y/n)");
scanf("%s",ch);
if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0)
{
printf("name occupation telephone email addresse\t\n");
printf(FORMAT,DATA);
}break;
}
}
void update()
{
FILE *fp;
int i,j,count=0;
char name[15];
if((fp=fopen("data.txt","r+"))==NULL)
{
printf("can not open");
return;
}
while(!feof(fp)){
printf("%d",count);
if(fread(&addrinfo[count],LEN,1,fp)==1)
count++;
}
if(count==0)
{
printf("no record\n");
fclose(fp);
return;
}
display();
printf("please input the name of the contact which you want to update\n");
printf("update name:");
scanf("%s",&name);
for(i=0;i<count;i++)
{ if(strcmp(name,addrinfo[i].name)==0)
{printf("find the contact!you can update!\n");
printf("name:");
scanf("%s",&addrinfo[i].name);
printf("occuption:");
scanf("%s",&addrinfo[i].occu);
printf("telephone：");
scanf("%s",&addrinfo[i].tel);
printf("email:");
scanf("%s",&addrinfo[i].email);
printf("address:");
scanf("%s",&addrinfo[i].address);
printf("update successful");//信息在数组中进行修改，需将信息写回磁盘中
if((fp=fopen("data.txt","wb"))==NULL)
{
printf("can not open\n");
return;
}
for(j=0;j<count;j++)
if(fwrite(&addrinfo[j],LEN,1,fp)!=1)
{
printf("can not save!");
getch();
}
fclose(fp);
return;
}
}printf("not find contact");//若未找到联系人信息
}
void del()
{
FILE *fp;
int i,j,count=0;
char ch[2];
char name[15];
if((fp=fopen("data.txt","r+"))==NULL)
{
printf("can not open\n");
return;
}
while(!feof(fp))
if(fread(&addrinfo[count],LEN,1,fp)==1)
count++;
fclose(fp);
if(count==0)
{
printf("no record!\n");
return;
}
display();
printf("please input the name");
scanf("%s",&name);
for(i=0;i<count;i++)
{
if(strcmp(name,addrinfo[i].name)==0)
{
printf("find the contact,del?(y\n)");
scanf("%s",ch);
if(strcmp(ch,"Y")||strcmp(ch,"y")==0)
for(j=i;j<count;j++)//i为所需删的联系人，需将i后的联系人都前移一个位置
addrinfo[j]=addrinfo[j+1];
count--;
if((fp=fopen("data.txt","w"))==NULL)
{
printf("can not open");
return;
}for(j=0;j<count;j++)
if(fwrite(&addrinfo[j],LEN,1,fp)!=1)
{
printf("can not save!\n");
getch();
}
fclose(fp);
printf("del successfully!\n");
return;
}
}
printf("not find the contact");
}
void sort()
{
FILE *fp;
struct addritem t;
int i,j,count=0;
if((fp=fopen("data.txt","r+"))==NULL)
{
printf("can not open\n");
return;
}
while(!feof(fp))
if(fread(&addrinfo[count],LEN,1,fp)==1)
count++;
fclose(fp);
if(count==0)
{
printf("no record!\n");
return;
}
for(i=0;i<count-1;i++)
for(j=i+1;j<count;j++)
if(strcmp(addrinfo[i].name,addrinfo[j].name)>0)
{
t=addrinfo[i];
addrinfo[i]=addrinfo[j];
addrinfo[j]=t;
}
if((fp=fopen("data.txt","w"))==NULL)
{
printf("can not open\n");
return;
}
for(i=0;i<count;i++)
if(fwrite(&addrinfo[i],LEN,1,fp)!=1)
{
printf("can not save!\n");
getch();
}
fclose(fp);
printf("successfully!\n");
}
void display()
{
FILE *fp;
int i,count=0;
fp=fopen("data.txt","r");
while(!feof(fp))
{
if(fread(&addrinfo[count],LEN,1,fp)==1)
count++;
}
fclose(fp);
printf("name occupation telephone email address\t\n");
for(i=0;i<count;i++)
printf(FORMAT,DATA);
}
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