C编写的通讯录
我上网找啦一个用C语言编写的通讯录，把源代码复制到VC中运行有如下错误：--------------------Configuration: ctx - Win32 Debug--------------------
Linking...
ctx.obj : error LNK2001: unresolved external symbol _puttext
ctx.obj : error LNK2001: unresolved external symbol _gettext
ctx.obj : error LNK2001: unresolved external symbol _gotoxy
ctx.obj : error LNK2001: unresolved external symbol _clreol
ctx.obj : error LNK2001: unresolved external symbol _wherey
ctx.obj : error LNK2001: unresolved external symbol _wherex
ctx.obj : error LNK2001: unresolved external symbol _clrscr
Debug/ctx.exe : fatal error LNK1120: 7 unresolved externals
Error executing link.exe.
ctx.exe - 8 error(s), 0 warning(s)
为什么无法解析呢！
源代码如下：
#include <stdio.h>
#include <conio.h>
#define Back 8
#define Enter 13
#define Esc 27
#define home 71
#define end 79
#define upkey 72
#define dnkey 80
#define pgup 73
#define pgdn 81
struct person{
char name[14];
char tel[13];
char eml[22];
char dpmnt[22];
};
int savstate=1;
int barup(int y) /*光条上移*/
{
if(y>=8)
{
int i;struct{unsigned char ch;unsigned char attr;}t;
for(i=4;i<=30;i++)
{ gettext(i,y,i,y,&t);t.attr=0x07;puttext(i,y,i,y,&t);}
y=y-2;
for(i=4;i<=30;i++)
{ gettext(i,y,i,y,&t);t.attr=0x70;puttext(i,y,i,y,&t);}
}
return y;
}
int bardn(int y) /*光条下移*/
{
if(y<=18)
{
int i;struct{unsigned char ch;unsigned char attr;}t;
for(i=4;i<=30;i++)
{ gettext(i,y,i,y,&t);t.attr=0x07;puttext(i,y,i,y,&t);}
y=y+2;
for(i=4;i<=30;i++)
{ gettext(i,y,i,y,&t);t.attr=0x70;puttext(i,y,i,y,&t);}
}
return y;
}
int rtnstr(char ary[],int l,int m) /*对按键逐个测试，排除部分非法输入，按后退键修改，Enter键确认*/
{
int i,x,y; char ch;
for(i=0;i<=m;i++)
{ x=wherex();y=wherey();
if(i<m) { ary[i]=getch();
if(ary[i]==0) {getch(); i=i-1; continue;
}
}
clreol();
if(i==m) do{ch=getch(); if(ch==0)getch(); if(ch==Esc)return 0;
if(ch==Enter){ary[m]='\0'; return 1;} if(ch==Back)break;
gotoxy(x+m-i,y) ;clreol(); cprintf(" # Can't be more than %d letters.",m);
gotoxy(x,y);
}while(1);
if(ary[i]==Esc)return 0;
if(ary[i]==Back&&i==0) {i=i-1;continue;}
if(ary[i]==Enter)
{if(i>=l){ary[i]='\0';return 1;}
else{ gotoxy(x+m-i,y); clreol(); cprintf(" # Can't be less than %d letters.",l);
gotoxy(x,y); i=i-1; continue;
}
}
if(ary[i]==Back&&i>0||ch==Back) {gotoxy(x-1,y); clreol(); i=i-2; ch=0; continue;}
if(m==3||(l==7&&m==12)){if(ary[i]<48||ary[i]>57){i=i-1;continue;}}
putchar(ary[i]);
}
}
int readrecord(struct person psn[],int n) /*读文件。若不存在则新建并写入初始化后的数组，返回记录个数*/
{ int i,rcd=1; FILE *fp;
if((fp=fopen("C:\\zhyx.c","rb"))==NULL)
{ rcd=0;if((fp=fopen("C:\\zhyx.c","wb"))==NULL)
{ printf(" Cannot open file!");
return n;
}
}
if(rcd==0) for(i=0;i<100;i++)fwrite(&psn[i],sizeof(struct person),1,fp);
else for(i=0;i<100;i++)
{
fread(&psn[i],sizeof(struct person),1,fp);if(psn[i].name[0]=='\0')break;n++;
}
fclose(fp); printf(" There are %d records now.\n Records in C://zhyx.c",n); return n;
}
int add(struct person psn[],int n) /*增加记录。任意位置按Esc键退出，返回记录总数，并于主菜单显示增加的个数*/
{ int i,cnt=1;int t=n;
while(n<100)
{ clrscr();
printf("\n\nAdded %d.\nPlease input the information,Esc back to menu:\n\n\n\n",n-t);
printf("name:");
cnt=rtnstr(psn[n].name,2,13);if(cnt==0)break;
printf("\n\nphonenumber:");
cnt=rtnstr(psn[n].tel,7,12);if(cnt==0)break;
printf("\n\nemail:");
cnt=rtnstr(psn[n].eml,7,21);if(cnt==0)break;
printf("\n\ndepartment:");
cnt=rtnstr(psn[n].dpmnt,2,21);if(cnt==0)break;
printf("\n\nRecord added successfully!");
n++;
}if(n==100){
printf("\n\nThe record number has reached 100,can't add any more!");getch();
}
clrscr();if(cnt==0)psn[n]=psn[n+1];
if(t!=n){savstate=0;if(n-t!=1) printf(" Added %d records.\n",n-t);else printf(" Added 1 record.\n");}
return n;
}
int delete(struct person psn[],int n) /* 删除一记录 。姓名重复则输入序号字符串再转化为整数，由于情况简单直接讨论*/
{
int i,indx,num=0,cnt=1; char ch; char str[14];
printf("\n\n\n\nDelete name:");
cnt=rtnstr(str,2,13);str[13]='\0';
if(cnt==0) {clrscr();return n;}
printf("\n");
for(i=0;i<n;i++)if(strcmp(psn[i].name,str)==0)
{ num++; printf("\n%-2d %-14s %-15s %-23s %-22s",i,psn[i].name,psn[i].tel,psn[i].eml,psn[i].dpmnt);
if(num==1)indx=i;
}
if(num==1){ printf("\n\nFind 1 recod. Delete it(Y/N)?:");
do{ ch=getch();
if(ch=='Y'||ch=='y'){ clrscr();printf(" Deleted a record! name: %s",str);
for(i=indx;i<n;i++)psn[i]=psn[i+1];savstate=0;n--;return n;
}
else if(ch=='N'||ch=='n'){clrscr();return n;}
}while(1);
}
if(num>1){ printf("\n\nFind %d recods.Input the number before a record to delete it:\n\n",num);
cnt=rtnstr(str,1,3);if(cnt==0){clrscr();return n;}
cnt=strlen(str);if(cnt==3) {clrscr();printf(" Index error!");return n;} /*借用cnt(continue)*/
if(cnt==1)cnt=str[0]-48; /*续借，indx还要用到*/
else if(cnt==2)cnt=(str[0]-48)*10+str[1]-48;
if(cnt<n&&strcmp(psn[cnt].name,psn[indx].name)==0)
{ clrscr();printf(" Deleted a record! name: %s",psn[indx].name);
for(i=cnt;i<n;i++)psn[i]=psn[i+1];savstate=0;n--;return n;
}
else {clrscr(); printf(" Index error!"); return n;}
}
clrscr();
printf(" The name %s do not exist!",str);
return n;
}
void order(struct person psn[],int n) /*排序。可按姓名或电话按升序排序，主菜单中显示排序情况*/
{ char ch;
printf("\n\npress F to order by name,S by phonenumber.\n");
do
{ ch=getch();
if(ch==Esc)break;
}while(ch!='f'&&ch!='F'&&ch!='s'&&ch!='S');
if(ch=='f'||ch=='F')
{
int i,j,k; struct person temp;
for(i=0;i<n-1;i++)
{
k=i;for(j=i+1;j<n;j++)if(strcmp(psn[j].name,psn[k].name)<0)k=j;
if(k!=j){temp=psn[i];psn[i]=psn[k];psn[k]=temp;}
}clrscr();
printf("\n Ordered by name.");
savstate=0;return;
}
if(ch=='s'||ch=='S')
{
int i,j,k; struct person temp;
for(i=0;i<n-1;i++)
{
k=i;for(j=i+1;j<n;j++)if(strcmp(psn[j].tel,psn[k].tel)<0)k=j;
if(k!=j){temp=psn[i];psn[i]=psn[k];psn[k]=temp;}
}clrscr();
printf("\n Ordered by phonenumber.");
savstate=0;return;
}
clrscr();
}
void modify(struct person psn[],int n) /*修改记录 。姓名重复输入序号字符串再转化为整数，由于情况简单直接讨论*/
{
int i,indx,num=0,cnt=1; char str[14]; struct person temp;
printf("\nPlease input the friend's name:");
cnt=rtnstr(str,2,13);str[13]='\0'; if(cnt==0) {clrscr();return;}
printf("\n");
for(i=0;i<n;i++)if(strcmp(psn[i].name,str)==0)
{ num++; printf("\n%-2d %-14s %-15s %-23s %-22s",i,psn[i].name,psn[i].tel,psn[i].eml,psn[i].dpmnt);
if(num==1)indx=i;
}
if(num==1)
{
temp=psn[indx];
printf("\n\nPlease input new information,Esc back to menu:\n\n");
printf("name:");
cnt=rtnstr(psn[indx].name,2,13);if(cnt==0){psn[indx]=temp;clrscr();return;}
printf("\n\nphonenumber:");
cnt=rtnstr(psn[indx].tel,7,12);if(cnt==0){psn[indx]=temp;clrscr();return;}
printf("\n\nemail:");
cnt=rtnstr(psn[indx].eml,7,21);if(cnt==0){psn[indx]=temp;clrscr();return;}
printf("\n\ndepartment:");
cnt=rtnstr(psn[indx].dpmnt,2,21);if(cnt==0){psn[indx]=temp;clrscr();return;}
}
if(num>1){ printf("\n\nFind %d recods.Input the number before a record to modify it:\n\n",num);
cnt=rtnstr(str,1,3);if(cnt==0){clrscr();return;}
cnt=strlen(str);if(cnt==3) {clrscr();printf(" Index error!");return;} /*借用cnt*/
temp=psn[indx]; if(cnt==1)indx=str[0]-48;
if(cnt==2)indx=(str[0]-48)*10+str[1]-48;
if(indx<n&&strcmp(temp.name,psn[indx].name)==0)
{
temp=psn[indx];
printf("\n\nPlease input new information,Esc back to menu:\n\n");
printf("name:");
cnt=rtnstr(psn[indx].name,2,13);if(cnt==0){psn[indx]=temp;clrscr();return;}
printf("\n\nphonenumber:");
cnt=rtnstr(psn[indx].tel,7,12);if(cnt==0){psn[indx]=temp;clrscr();return;}
printf("\n\nemail:");
cnt=rtnstr(psn[indx].eml,7,21);if(cnt==0){psn[indx]=temp;clrscr();return;}
printf("\n\ndepartment:");
cnt=rtnstr(psn[indx].dpmnt,2,21);if(cnt==0){psn[indx]=temp;clrscr();return;}
}
else {clrscr(); printf(" Index error!"); return;}
}
clrscr();
if(num>0){printf(" Modified a record! name:%s->%s",temp.name,psn[indx].name);savstate=0;n--;}
else printf(" The name %s do not exist!",str);
}
void print(struct person psn[],int n) /*显示所有记录。由pgup、pgdn、home、end及上下键控制*/
{
int i,k=0,l=0,j=n/10+(n%10?1:0); char ch;
do
{
printf("\n name:: phonenumber:: email:: department::\n\n");
for(i=k*10+l;i<(k+1)*10+l;i++)
{ if(i==n)break;
printf(" %-14s %-15s %-23s %-22s\n\n",psn[i].name,psn[i].tel,psn[i].eml,psn[i].dpmnt);
}
if(l%10==0) {gotoxy(1,24);cprintf(" Press Esc back to menu. page %d / %d ",k+l/10+1,j);}
else {gotoxy(1,24);cprintf(" Press Esc back to menu. (%d pages)",j);}
do
{ ch=getch();
if(ch==0)
{ ch=getch();
if(ch==pgdn&&((k+1)*10+l<n))k++;
if(ch==pgup&&(k*10+l>=10))k--;else if(ch==pgup)ch=home;
if(ch==home){k=0;l=0;}
if(ch==end){k=j-1;l=0;}
if(ch==upkey&&(k*10+l>0))l--;
if(ch==dnkey&&(k*10+l<n-1))l++;
break;
}
}while(ch!=Esc);
if(ch==Esc) break;clrscr();
}while(1);clrscr();
}
void find(struct person psn[],int n) /*查找记录。直接输入姓名或电话，则显示匹配内容，姓名为纯数字者不显示*/
{
int i,num=0,cnt=1; char str[15];
printf("\n\n\n Please input the name or phonenumber you want to find:\n\n");
printf(" name or phone:");
cnt=rtnstr(str,2,14);str[14]='\0'; if(cnt==0)return;
for(i=0;str[i]!='\0';i++)
if(str[i]<48||str[i]>57)
{
for(i=0;i<n;i++)
if(strcmp(psn[i].name,str)==0)
{ num++;
if(num==1)printf("\n\n name:: phonenumber:: email:: department::\n\n");
printf(" %-14s %-15s %-23s %-22s\n\n",psn[i].name,psn[i].tel,psn[i].eml,psn[i].dpmnt);
}
if(num==0) {clrscr();printf("Can't find any record in accordance with %s!",str);return;}
gotoxy(2,24); cprintf("Press any key to cotinue.");
getch(); clrscr(); return;
}
for(i=0;i<n;i++)
if(strcmp(psn[i].tel,str)==0)
{ num++;
if(num==1)printf("\n\n name:: phonenumber:: email:: department::\n\n");
printf(" %-14s %-15s %-23s %-22s\n\n",psn[i].name,psn[i].tel,psn[i].eml,psn[i].dpmnt);
}
if(num==0) {clrscr();printf("Can't find any record in accordance with %s!",str);return;}
gotoxy(2,24); cprintf("Press any key to cotinue.");
getch(); clrscr(); return;
}
void save(struct person psn[],int n) /*保存记录。若磁盘故障或已满则退出*/
{ FILE *fp; int i;
if(savstate==1)return;
if((fp=fopen("C:\\zhyx.c","wb"))==NULL)
{
printf(" Cannot open file!");return;
}
for(i=0;i<=n;i++) if(fwrite(&psn[i],sizeof(struct person),1,fp)!=1) /*多保存了一项，但没必要*/
{printf(" File error!");fclose(fp);return;}
savstate=1;printf(" Records saved!");
fclose(fp);
}
main() /*主函数。有两重循环，第一重打印菜单，第二重处理按键*/
{
int i,n=0,ex=0,y=8; char ch;
struct person psn[100];
for(i=0;i<100;i++)
{ strcpy(psn[i].name,"\0");
strcpy(psn[i].tel,"\0");
strcpy(psn[i].eml,"\0");
strcpy(psn[i].dpmnt,"\0");
}
n=readrecord(psn,n);
do
{
gotoxy(2,4); cprintf("#################################");
gotoxy(2,5); cprintf("# #");
gotoxy(2,6); cprintf("# A: add new records. #");
gotoxy(2,7); cprintf("# #");
gotoxy(2,8); cprintf("# D: delete certain records. #");
gotoxy(2,9); cprintf("# #");
gotoxy(2,10);cprintf("# O: order them. #");
gotoxy(2,11);cprintf("# #");
gotoxy(2,12);cprintf("# M: modify a record. #");
gotoxy(2,13);cprintf("# #");
gotoxy(2,14);cprintf("# P: print all. #");
gotoxy(2,15);cprintf("# #");
gotoxy(2,16);cprintf("# F: find certaen records. #");
gotoxy(2,17);cprintf("# #");
gotoxy(2,18);cprintf("# S: save. #");
gotoxy(2,19);cprintf("# #");
gotoxy(2,20);cprintf("# Esc: exit. #");
gotoxy(2,21);cprintf("# #");
gotoxy(2,22);cprintf("#################################");
y=8;y=barup(y);
gotoxy(2,24);cprintf("Please choose a menu form the table above.");
do
{ ch=getch();
if(ch==0) /*若按部分非字符键，可能是移动光条，y值跟踪光条改变*/
{
ch=getch();
switch(ch)
{
case upkey:
y=barup(y);ch=0;break;
case dnkey:
y=bardn(y);ch=0;
}
}
if(ch==Enter)
{
switch(y) /*光条对应y值，y值对应字符*/
{
case 6: ch='a';break;
case 8: ch='d';break;
case 10: ch='o';break;
case 12: ch='m';break;
case 14: ch='p';break;
case 16: ch='f';break;
case 18: ch='s';break;
case 20: ch=Esc;break;
}
}
switch(ch) /*对不同字符调用相应函数或其它操作*/
{ case 'a':
case 'A':
{ clrscr(); n=add(psn,n);
ch=Enter; break;
}
case 'd':
case 'D':
{ clrscr(); n=delete(psn,n);
ch=Enter; break;
}
case 'o':
case 'O':
{ clrscr(); order(psn,n);
ch=Enter; break;
}
case 'm':
case 'M':
{ clrscr(); modify(psn,n);
ch=Enter; break;
}
case 'p':
case 'P':
{ clrscr(); print(psn,n);
ch=Enter; break;
}
case 'f':
case 'F':
{ clrscr(); find(psn,n);
ch=Enter; break;
}
case 's':
case 'S':
{ clrscr(); save(psn,n);
ch=Enter; break;
}
case Esc: /*退出时的处理。按Y保存后退出，N直接退出，Esc返回程序*/
{ clrscr();ex=1;
if(savstate==0)
{ gotoxy(5,5); cprintf("Records not saved! save(y/n)? Cancel: Esc");
do{ ch=getch();
if(ch=='n'||ch=='N')savstate=1;
if(ch=='y'||ch=='Y')save(psn,n);
if(ch==Esc){ex=0;break;}
}while(savstate!=1);
}
clrscr(); ch=Enter; break;
}
}
}while(ch!=Enter);
if(ex==1)break;
}while(1);
clrscr();
}
~~
