#include<stdio.h>
#include<stdlib.h>
#include<string.h>
struct Person
{
char name[50]; /*name*/
char classes[15];/*classes*/
int score;/ *student number*/
char sex[5]; /*gender*/
int age; /*age*/
char num[15]; /*number*/
char adds[20]; /*address*/
} Info[50000 ],*q;
FILE* fin;
//Login function, no input and output, display program name, author, version and other information
void logon()
{
printf("\n\n\n\t\t\t Address book management System\n\n");
printf("\t\t\t Version number: 1.0\n\n");
printf("\n\n\n\n\n\t\t\t April 2018 20th of the month\n\n");
printf("\t\t\t Count 153-2 Zhang Feng\n");
system("pause");
}
//Function selection directory, input character C, select corresponding operation
int menu_select()
{
char c;
do
{
system("cls");
printf("\t\t *****Address Book***** \n");
printf("\t\t┌─ ──────┐\n");
printf("\t\t│ 1. Add record│\n");
printf("\t\t│ 2. Delete record│\n");
printf( "\t\t│ 3. Query record│\n");
printf("\t\t│ 0. Exit program│\n");
printf("\t\t└───────┘ \n");
printf("\t\tPlease choose (0-3):");
c=getchar();
}
while(c<'0'||c>'4');
return(c -'0');
}
//Add record, input contact information, and output add completion
void Input()
{
if((fin=fopen("document.txt","a+"))==NULL)
{
printf("Failed to open\n");
exit(-1);
}
int cnt=0;
q=&Info[cnt];
printf("\tClass:");
scanf("\t%s",q- >classes);
printf("\tName:");
scanf("\t%s",q->name);
printf("\tStudent ID:");
scanf("\t%d",&q ->score);
printf("\tSex:");
scanf("\t%s",q->sex);
printf("\tAge:");
scanf("\t%d",&q ->age);
printf("\tPhone number:");
scanf("\t%s",q->num);
printf("\tAddress:");
scanf("\t%s",q->adds);
int i=0;
fprintf(fin,"%s %s %d %s %d %s %s\n",Info[i].classes,
Info[i].name,Info[i].score,Info[i].sex,
Info[i].age,Info[i].num,Info[i].adds);
printf("\tAdd complete .\n");
fclose(fin);
system("pause");
}
//Delete the record, enter the name of the person to delete, and output the contact has been deleted
void Delete()
{
if((fin=fopen( "document.txt","r"))==NULL)
{
printf("Failed to open\n");
exit(-1);
}
char name[10]; //First find and delete
int cnt=0;
while (fscanf(fin,"%s %s %d %s %d %s %s",Info[cnt].classes,
Info[cnt].name,&Info[cnt].score,Info[cnt].sex,
&Info[cnt].age,Info[cnt].num,Info[cnt]. adds)!=EOF)cnt++;
if (cnt == 0)
{
printf("The address book is empty\n");
return;
}
fclose(fin);
if((fin=fopen("document.txt","w"))==NULL)
{
printf("Failed to open\n");
exit(-1);
}
printf("Please enter the name of the record you want to delete: \n");
scanf("%s",name);
int i=0,j ;
while ((strcmp(Info[i].name,name)!=0 )&& i<cnt)i++;
if (strcmp(name,Info[i].name)==0) //delete information
{
for( j=0;j<cnt;j++)
if(i==j)continue;
else fprintf(fin,"%s %s %d %s %d %s %s\n",Info[j].classes,
Info[j].name, Info[j].score,Info[j].sex,
Info[j].age,Info[j].num,Info[j].adds);
}
else
{
printf("The friend does not exist!\n");
return;
}
printf("Information deleted!\n ");
fclose(fin);
}
//Query records, enter the name of the contact to be queried, or the initials of the surname, and output the contact information
void Query()
{
if((fin=fopen("document.txt", "r"))==NULL)
{
printf("Failed to open\n");
exit(-1);
}
int m = 0;
printf("\t\nPlease select the query method:\n");
printf ("\t┌──────┐\n");
printf("\t│1------name│\n");
printf("\t│2------ Last name│\n");
printf(" \t│3------return│\n");
printf("\t└──────┘\n");
printf("Please choose:");
scanf("%d",&m);
while(m!=1&&m!=2)
{
printf("Incorrect input, please choose again:");
scanf("%d", &m);
}
if(m == 1)
{
char name[50];
int cnt=0;
while(fscanf(fin,"%s %s %d %s %d %s %s",Info[cnt] .classes,
Info[cnt].name,&Info[cnt].score,Info[cnt].sex,
&Info[cnt].age,Info[cnt].num,Info[cnt].adds)!=EOF)cnt++ ;
if(cnt==0) // If it is an empty linked list;
{
printf("The address book is empty!\n");
return;
}
printf("\tPlease enter the name you want to query:");
scanf("%s",name);
int i=0;
for(i=0;i<cnt;i++) //loop through the nodes in the linked list to find the smallest node at this time
{
if(strcmp(Info[i].name,name)==0) //comparison input name
{
printf("Class\tName\tStudent ID\tSex\tAge\tNumber\tAddress\n");
printf("%s\t%s\t%d\t%s\t %d\t%s\t%s\n",Info[i].classes,Info[i].name,Info[i].score,Info[i].sex,Info[i].age,Info [i].num,Info[i].adds);
break;
}
}
if(i==cnt) printf("\tThis contact does not exist\n");
}
if(m==2)
{
char name[50];
int cnt=0;
while(fscanf(fin,"%s %s %d %s %d %s %s",Info[cnt].classes,
Info[cnt].name,&Info[cnt ].score,Info[cnt].sex,
&Info[cnt].age,Info[cnt].num,Info[cnt].adds)!=EOF)cnt++;
if(cnt==0) // If it is an empty list;
{
printf("The address book is empty! \n");
return;
}
printf("\tPlease enter the name you want to query:");
scanf("%s",name);
int i=0;
for(i=0;i<cnt;i++) // Loop through the nodes in the linked list to find the smallest node at this time
{
if(Info[i].name[0]==name[0]) //Compare the input names
{
printf("Class\tName\ tstudent number\tgender\tage\tnumber\taddress\n");
printf("%s\t%s\t%d\t%s\t%d\t%s\t%s\ n",Info[i].classes,Info[i].name,Info[i].score,Info[i].sex,Info[i].age,Info[i].num,Info[i]. adds);
break;
}
}
if(i==cnt) printf("\tThis contact does not exist\n");
}
fclose(fin);
}
int main()
{
logon();
for(;;)
{
switch(menu_select() )
{
case 1:
printf("\n\tAdd record to address book\n");
Input();
break;
case 2:
printf("\n\tDelete record from address book\n");
Delete ();
printf("\t");
system("pause");
break;
case 3:
printf("\n\tFind record in address book\n");
Query();
printf("\t");
system("pause");
break;
case 0:
printf("\n\t\t谢谢使用，再见!\n");
printf("\n\t\t");
system("pause");
exit(0);
}
}
return 0;
}
