手機號c語言編程號怎麼輸入

⑴ C語言編寫程序，建立phone.txt文件，由鍵盤輸入5個人的姓名、手機號碼、家庭住址，寫入該文件中。

#include <stdio.h>
#include <stdlib.h>
struct data
{
char name[20];
char phone[20];
char address[20];
} people[5];
int main()
{
FILE *p;
int i;
p=fopen("D:\\phone.txt","w");
if(p==NULL)
{
printf("打開文件失敗\n");
exit(0);
}
for(i=1;i<=5;i++)
{
printf("輸入第%d個人的信息，空格頓開，回車結束\n",i+1);
scanf("%s%s%s",people[i].name,people[i].phone,people[i].address);
fwrite(&people[i],sizeof(people[i]),1,p);
fprintf(p,"\n");
}
fclose(p);
return 0;
}

⑵ 用C語言編寫手機通訊錄程序

以前寫了一個簡單的：
#include <stdio.h>
#include <stdlib.h> /*與malloc.h差不多*/
#include <string.h>
#include <iostream>
using namespace std;
#define maxlen 15
struct persons
{int num; /*定義結構體數組用於緩存數據*/
char name[20];
char e_addr[20];
char tel_no[15];
char sim_no;
char arch;
}persons[maxlen];

typedef struct lnode
{ /*通訊錄結構中結點的定義*/
int num;
char name[20];
char e_addr[20];
char tel_no[15];
char sim_no;
char arch;
struct lnode *next;
}listnode,*linklist;

linklist head=NULL,r=NULL; /*定義頭指針和尾指針*/
listnode *s,*p0,*p1,*p2,*p3,*p4,*p5,*p6,*p7,*p8,*p9;
int i;
char name1[10],ch;
char tel_no1[15];
char arch1;
char sim_no1;
char e_addr1[20];
char s1[20];
FILE *fp; /*定義文件指針*/

void creat() /*將文件的信息讀入結構體數組在轉存入鏈表中*/
{ int j;
long k;
fp=fopen("數據文件.txt","r t"); /*打開文件*/
if(fp!=NULL)
{for(i=0;i<=maxlen;i++ )
{ j=fgetc(fp);
if(j==EOF)
return;
k=i;
fseek(fp,k*sizeof(struct persons),0); /*讀取一個人的信息*/
fread(&persons[i],sizeof(struct persons),1,fp);

s=(linklist)malloc(sizeof(listnode)); /*裝存入鏈表中*/
s->num=persons[i].num;
strcpy(s->name,persons[i].name);
strcpy(s->e_addr,persons[i].e_addr);
strcpy(s->tel_no,persons[i].tel_no);
s->sim_no=persons[i].sim_no;
s->arch=persons[i].arch;
if(head==NULL) /*用尾插法將其插入鏈表中*/

else
{r->next=s;
r=s;r->next=NULL;
}
}fclose(fp);
}
else
{ fp=fopen("數據文件.txt","w"); /*不能打開另開辟一個文件*/
i=1;
}
}

void Show()

void Delete()

void Input() /*向.通訊錄中輸入一個人的信息*/
{ s=(linklist)malloc(sizeof(listnode));
printf("\n\n\t請輸入該用戶的信息:");
printf("姓名:");
scanf("%s",&s->name);
printf("電話號碼:");
scanf("%s",&s->tel_no);
printf("單鍵撥號:");
scanf("%s",&s->sim_no);
printf("E-mail地址:");
scanf("%s",&s->e_addr);
printf("類別:");
scanf("%s",&s->arch);

if(head==NULL)printf("\n\n");
else
{p8=head;
while(p8!=NULL&&strcmp(s->name,p8->name)!=0&&strcmp(s->tel_no,p8->tel_no)!=0)
p8=p8->next;
if(p8!=NULL)
{printf("您添加的用戶已存在!");
free(s);}}
if(head==NULL)
{
s->next = 0;
head=s;
r = s;
}
else
{
s->next = 0;
r->next = s;
r = s;

}
}
void Alter()

int main()
{
system("color a");
creat();
do
{
printf("\n\n\t\t請選擇操作:");
printf("\n\t\t1.顯示通訊錄");
printf("\n\t\t2.刪除通訊錄");
printf("\n\t\t3.添加通訊錄");
printf("\n\t\t4.編輯通訊錄");
printf("\n\n\n");
printf("\t請選擇:");
cin>>ch;
switch(ch)
{ case '1': Show(); /*用單條件多選擇語句實現調用與循環*/
break;
case '2': Delete();
break;
case '3': Input();
break;
case '4': Alter();
break;
fclose(fp);
exit(0);
break;
default:
printf("\n\t The num should 1-6!!! \n");
break;
}
}
while(1);
}

⑶ c語言編程題要求用函數和指針求判斷一個字元串是否為手機號，不 （手機要是11為什麼全為阿拉伯字母）

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

int istelnum(char *num)
{
int i;

for(i=0;num[i];i++)
{
if(!(num[i]>='0'&&num[i]<='9'))
return 0;
}
return 11==strlen(num);
}

int main()
{
char num[16];

printf("請輸入手機號：");
gets(num);
if(istelnum(num))
puts("是有效的手機號\n");
else
puts("不是有效的手機號\n");
return 0;
}

⑷ C語言中怎麼輸入數字和字母

需要准備的材料分別有：電腦、C語言編譯器。

1、首先，打開C語言編譯器，新建一個初始.cpp文件，例如：test.cpp。

⑸ 用C語言編寫輸入輸出手機號碼

char a[100];
scanf("%s",a);

⑹ c語言編程 建立一通訊錄，輸入姓名，電號碼，住址等信息，然後對通信...

#include<stdio.h>
#include<string.h>
struct person
{
char name[8];
char tel[15];
char addr[50];
};
char filename[20];
FILE *fp;
void creat();
void output();
void search();
void append();
void modify();
void deleted();
int main()
{
int m;
creat();
while(1)
{
printf("\n\n添加，請按1");
printf("\n查找，請按2");
printf("\n修改，請按3");
printf("\n刪除，請按4");
printf("\n輸出，請按5");
printf("\n退出，請按0\n");
scanf("%d",&m);
if(m>=0&&m<=5)
{
switch(m)
{
case 1: append();
break;
case 2: search();
break;
case 3: modify();
break;
case 4: deleted();
break;
case 5: output();
break;
case 0: break;
}
printf("\n\n操作完畢，請再次選擇！");
}
else
printf("\n\n選擇錯誤，請再次選擇！");
}
return 0;}

void creat()
{
struct person one;
long s1;
printf("\n請輸入通訊簿名：");
scanf("%s",filename);
if((fp=fopen(filename,"w"))==NULL)
{
printf("\n不能建立通訊簿！");

}
fprintf(fp,"%-10s%-20s%-50s\n","姓名","電話號碼","住址");
printf("\n請輸入姓名、電話號碼及住址（以0結束）\n");
scanf("%s",one.name);
while(strcmp(one.name,"0"))
{
scanf("%s%s",one.tel,one.addr);
fprintf(fp,"%-10s%-20s%-50s\n",one.name,one.tel,one.addr);
scanf("%s",one.name);
}
fclose(fp);
}
void output()
{
struct person one;
if((fp=fopen(filename,"r"))==NULL)
{
printf("\n不能打開通訊簿！");

}
printf("\n\n%20s\n","通 訊 簿");
while(!feof(fp))
{
fscanf(fp,"%s%s%s\n",one.name,one.tel,one.addr);
printf("%-10s%-20s%-50s",one.name,one.tel,one.addr);
}
fclose(fp);
}
void append()
{
struct person one;
if((fp=fopen(filename,"a"))==NULL)
{
printf("\n不能打開通訊簿！");

}
printf("\n請輸入添加的姓名、電話號碼及住址\n");
scanf("%s%s%s",one.name,one.tel,one.addr);
fprintf(fp,"%-10s%-20s%-50s\n",one.name,one.tel,one.addr);
fclose(fp);
}
void search()
{
int k=0;
char namekey[8];
struct person one;
printf("\n請輸入姓名:");
scanf("%s",namekey);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("\n不能打開通訊簿！");

}
while(!feof(fp))
{
fscanf(fp,"%s%s%s\n",one.name,one.tel,one.addr);
if(!strcmp(namekey,one.name))
{
printf("\n\n已查到，記錄為：");
printf("\n%-10s%-18s%-50s",one.name,one.tel,one.addr);
k=1;
}
}
if(!k)
printf("\n\n對不起，通訊簿中沒有此人的記錄。");
fclose(fp);
}
void modify()
{
int m,k=0;
long offset;
char namekey[8];
struct person one;
printf("\n請輸入姓名:");
scanf("%s",namekey);
if((fp=fopen(filename,"r+"))==NULL)
{
printf("\n不能打開通訊簿！");

}
while(!feof(fp))
{
offset=ftell(fp);
fscanf(fp,"%s%s%s\n",one.name,one.tel,one.addr);
if(!strcmp(namekey,one.name))
{
k=1;
break;
}
}
if(k)
{
printf("\n已查到，記錄為：");
printf("\n%-10s%-18s%-50s",one.name,one.tel,one.addr);
printf("\n請輸入新姓名、電話號碼及住址：");
scanf("%s%s%s",one.name,one.tel,one.addr);
fseek(fp,offset,SEEK_SET);
printf("%ld",ftell(fp));
fprintf(fp,"%-10s%-20s%-50s\n",one.name,one.tel,one.addr);
}
else
printf("\n對不起，通訊簿中沒有此人的記錄。");
fclose(fp);
}
void deleted()
{
int m,k=0,flag;
long offset1,offset2;
char namekey[8], valid[4];
struct person one;
printf("\n請輸入姓名:");
scanf("%s",namekey);
if((fp=fopen(filename,"r+"))==NULL)
{
printf("\n不能打開通訊簿！");

}
while(!feof(fp))
{
offset1=ftell(fp);
fscanf(fp,"%s%s%s\n",one.name,one.tel,one.addr);
if(!strcmp(namekey,one.name))
{
k=1;
break;
}
}
if(k)
{
printf("\n已查到，記錄為");
printf("\n%-10s%-18s%-50s",one.name,one.tel,one.addr);
printf("\n確實要刪除,按1；不刪除，按0：");
scanf("%d",&m);
if(m)
{
fseek(fp,offset1,SEEK_SET);
fprintf(fp,"%-10s%-20s%-50s\n","","","");
}
}
else
printf("\n對不起，通訊簿中沒有此人的記錄。");
fclose(fp);
}
在vc6.0 上可以使用，希望對你有用

⑺ C語言編寫一個簡短的通訊錄，輸入聯系人得知電話號碼和性別等基本信息就可以，謝謝！

我重寫一個哦

classtongxunlu{
stringa;
stringb;
stringc;
}
tongxunlumyfriend[2];
cin>>myfriend[0].a>>myfriend[0].b>>myfriend[0].c;//給我的朋友賦值，就是添加信息
cout<<myfriend[0].a<<myfriend[0].b<<myfriend[0].c;//輸出

這就是給他注入信息然後在取出來個過程，注釋寫得很詳細，根據你的需要自己修改吧，這個是我以前回答別人的時候寫的

⑻ C語言這個程序為何電話號碼ph用int 和"%d"輸入輸出就不對而用 char和"%s"就可以，電話不全是數字嗎

如果電話號碼小的話(8位)
scanf("%s%s%d",c[i].name,c[i].address,c[i].ph); 應該是
scanf("%s%s%d",c[i].name,c[i].address,&c[i].ph);
輸出沒錯