C语言学习历程（十四） 结构体链表实现通讯录
2017-12-16 21:28
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*#include <*stdio.h>
*#include<*stdlib.h>
#include<string.h>**
#define LEN sizeof(struct student)**
struct student
{
int num;
long int phone;
char name[20];
char sex[10];
};
struct student *print(struct student *head)
{
struct student *p;
p = head;
do
{
printf(“num = %d , name = %s , sex = %s , phone = %d\n”,p -> num ,p -> name,p -> sex, p -> phone);
return NULL;
}
struct student *add(struct student *head)
{
struct student *p1,*p2,*p3;
int num,index;
char name[20];
char sex[10];
long int phone;
}
struct student *delete(struct student *head)
{
printf(“请输入你想删除的序号:”);
}
struct student *change(struct student *head)
{
struct student *p;
int num,index;
char name[20];
char sex[10];
long int phone;
}
printf(“[b]*******[/b]修改信息成功，谢谢！[b]********[/b]\n”);
return head;
}
int main(int argc, char **argv)
{
}
*#include<*stdlib.h>
#include<string.h>**
#define LEN sizeof(struct student)**
struct student
{
int num;
long int phone;
char name[20];
char sex[10];
struct student *next;
};
struct student *print(struct student *head)
{
struct student *p;
p = head;
do
{
printf(“num = %d , name = %s , sex = %s , phone = %d\n”,p -> num ,p -> name,p -> sex, p -> phone);
p = p -> next ; } while(p != NULL);
return NULL;
}
struct student *add(struct student *head)
{
struct student *p1,*p2,*p3;
int num,index;
char name[20];
char sex[10];
long int phone;
printf("请输入你想增加的序列号:");
scanf("%d",&index);
printf("请输入该同学的学号:");
scanf("%d",&num);
printf("请输入该同学的姓名:");
scanf("%s",name);
printf("请输入该同学的性别:");
scanf("%s",sex);
printf("请输入该同学的手机号码:");
scanf("%d",&phone);
if(head == NULL)
{
printf("The list is NULL");
}
else
{
p1 = p2 = head;
if(index == 1)
{
p3 = (struct student *)malloc(LEN);
p3 -> num = num;
strcpy(p3 -> name , name);
strcpy(p3 -> sex , sex);
p3 -> phone = phone;
head = p3;
p3 -> next = p1;
}
else
{
while(p1 -> next != NULL && p1 -> num +1 != index)
{
p1 = p1 -> next;
p2 = p1;
}
if(p1 -> num +1 == index)
{
p3 = (struct student *)malloc(LEN);
p3 -> num = num;
strcpy(p3 -> name , name);
strcpy(p3 -> sex , sex);
p3 -> phone = phone;
}
if(p2 -> next == NULL)
{
p2 -> next = p3;
p3 -> next = NULL;
}
else
{
p3 -> next = p2 -> next;
p2 -> next = p3;
}
}
}
printf("***************增添信息成功，谢谢！******************\n");
return head;}
struct student *delete(struct student *head)
{
printf(“请输入你想删除的序号:”);
struct student *p1,*p2;
int index;
scanf("%d",&index);
p1 = head;
if(head == NULL)
{
printf("The List is NULL\n");
}
else
{
if(index == 1)
{
head = head -> next;
}
if(index != 1)
{
while(p1 -> next != NULL && p1 -> num != index)
{
p2 = p1;
p1 = p1 -> next;
if(p1 -> num == index)
{
if(p1 == head)
{
head = p1 ->next;
}
else
{
p2 -> next = p1 -> next;
}
}
}
}
}
printf("***************删除信息成功，谢谢！*****************\n");
return head;}
struct student *change(struct student *head)
{
struct student *p;
int num,index;
char name[20];
char sex[10];
long int phone;
if(head == NULL)
{
printf("The List is NULL\n");
}
else
{
printf("请输入你想修改的序列号:");
scanf("%d",&index);
printf("请输入该同学的学号:");
scanf("%d",&num);
printf("请输入该同学的姓名:");
scanf("%s",name);
printf("请输入该同学的性别:");
scanf("%s",sex);
printf("请输入该同学的手机号码:");
scanf("%d",&phone);
p = head;
if(index == 1)
{
p -> num = num;
strcpy(p -> name , name);
strcpy(p -> sex , sex);
p -> phone = phone;
}
while(p -> next != NULL && p -> num != index)
{
p = p -> next;
}
if(p -> num == index)
{
p -> num = num;
strcpy(p -> name , name);
strcpy(p -> sex , sex);
p -> phone = phone;
}}
printf(“[b]*******[/b]修改信息成功，谢谢！[b]********[/b]\n”);
return head;
}
int main(int argc, char **argv)
{
struct student *p1,*p2,*p3,*p4,*p5,*p6,*p7,*p8,*p9,*p10,*p11,*p12,*p13,*p14,*p15,*p16,*p17,*p18,*p19,*p20,*p21,*p22,*p23,*p24;
struct student s1,s2,s3,s4,s5,s6,s7,s8,s9,s10,s11,s12,s13,s14,s15,s16,s17,s18,s19,s20,s21,s22,s23,s24;
struct student *head;
p1 = &s1 ; p2 = &s2 ; p3 = &s3 ; p4 = &s4 ; p5 = &s5 ; p6 = &s6 ;
p7 = &s7 ; p8 = &s8 ; p9 = &s9 ; p10 = &s10 ; p11 = &s11 ; p12 = &s12 ;
p13 = &s13 ; p14 = &s14 ; p15 = &s15 ; p16 = &s16 ; p17 = &s17 ;
p18 = &s18 ; p19 = &s19 ; p20 = &s20 ; p21 = &s21 ; p22 = &s22 ;
p23 = &s23 ; p24 = &s24 ;
head = &s1;
p1 -> num = 1;
strcpy( s1.name , "chenwenjie");
strcpy( s1.sex , "male");
p1 -> phone = 1234567891;
p1 -> next = p2;
p2 -> num = 2;
strcpy(p2 -> name , "maozequan");
strcpy(p2 -> sex , "male");
p2 -> phone = 1234567891;
p2 -> next = p3;
p3 -> num = 3;
strcpy(p3 -> name , "yangjifu");
strcpy(p3 -> sex , "male");
p3 -> phone = 1234567891;
p3 -> next = p4;
p4 -> num = 4;
strcpy(p4 -> name , "zhuzhiwen");
strcpy(p4 -> sex , "male");
p4 -> phone = 1234567891;
p4 -> next = p5;
p5 -> num = 5;
strcpy(p5 -> name , "chenlijun");
strcpy(p5 -> sex , "male");
p5 -> phone = 1234567891;
p5 -> next = p6;
p6 -> num = 6;
strcpy(p6 -> name , "caihongfei");
strcpy(p6 -> sex , "male");
p6 -> phone = 1234567891;
p6 -> next = p7;
p7 -> num = 7;
strcpy(p7 -> name , "wangsheng");
strcpy(p7 -> sex , "male");
p7 -> phone = 1234567891;
p7 -> next = p8;
p8 -> num = 8;
strcpy(p8 -> name , "wanglina");
strcpy(p8 -> sex , "male");
p8 -> phone = 1234567891;
p8 -> next = p9;
p9 -> num = 9;
strcpy(p9 -> name , "gelan");
strcpy(p9 -> sex , "female");
p9 -> phone = 1234567891;
p9 -> next = p10;
p10 -> num = 10;
strcpy(p10 -> name , "yuanxuan");
strcpy(p10 -> sex , "female");
p10 -> phone = 1234567891;
p10 -> next = p11;
p11 -> num = 11;
strcpy(p11 -> name , "taojunyi");
strcpy(p11 -> sex , "male");
p11 -> phone = 1234567892;
p11 -> next = p12;
p12 -> num = 12;
strcpy(p12 -> name , "zhanganliu");
strcpy(p12 -> sex , "male");
p12 -> phone = 1234567892;
p12 -> next = p13;
p13 -> num = 13;
strcpy(p13 -> name , "wangwei");
strcpy(p13 -> sex , "male");
p13 -> phone = 1234567892;
p13 -> next = p14;
p14 -> num = 14;
strcpy(p14 -> name , "guanhuimin");
strcpy(p14 -> sex , "female");
p14 -> phone = 1234567892;
p14 -> next = p15;
p15 -> num = 15;
strcpy(p15 -> name , "wangyinxiang");
strcpy(p15 -> sex , "male");
p15 -> phone = 1234567892;
p15 -> next = p16;
p16 -> num = 16;
strcpy(p16 -> name , "zhaoyuyi");
strcpy(p16 -> sex , "male");
p16 -> phone = 1234567892;
p16 -> next = p17;
p17 -> num = 17;
strcpy(p17 -> name , "wangmian");
strcpy(p17 -> sex , "male");
p17 -> phone = 1234567892;
p17 -> next = p18;
p18 -> num = 18;
strcpy(p18 -> name , "rudong");
strcpy(p18 -> sex , "male");
p18 -> phone = 1234567892;
p18 -> next = p19;
p19 -> num = 19;
strcpy(p19 -> name , "panbairu");
strcpy(p19 -> sex , "female");
p19 -> phone = 1234567892;
p19 -> next = p20;
p20 -> num = 20;
strcpy(p20 -> name , "zhangmengyuan");
strcpy(p20 -> sex , "female");
p20 -> phone = 1234567892;
p20 -> next = p21;
p21 -> num = 21;
strcpy(p21 -> name , "chenchunxu");
strcpy(p21 -> sex , "male");
p21 -> phone = 1234567893;
p21 -> next = p22;
p22 -> num = 22;
strcpy(p22 -> name , "lizhuangwei");
strcpy(p22 -> sex , "male");
p22 -> phone = 1234567893;
p22 -> next = p23;
p23 -> num = 23;
strcpy(p23 -> name , "wenwanwan");
strcpy(p23 -> sex , "female");
p23 -> phone = 1234567893;
p23 -> next = p24;
p24 -> num = 24;
strcpy(p24 -> name , "sundan");
strcpy(p24 -> sex , "female");
p24 -> phone = 1234567893;
p24 -> next = NULL;
char a;
printf("**********欢迎来到154班通讯录*************\n");
printf("**********增添信息 ：请输入a *************\n");
printf("**********查询信息 ：请输入b *************\n");
printf("**********修改信息 ：请输入c *************\n");
printf("**********删除信息 ：请输入d *************\n");
printf("**********停止操作 : 请输入e *************\n");
scanf("%c",&a);
while(a !='e')
{
switch(a)
{
case 'a' : head = add(head) ; break;
case 'b' : print(head) ; break;
case 'c' : head = change(head) ; break;
case 'd' : head = delete(head) ; break;
default : ;break;
}
printf("请再次输入你需要的操作:");
scanf("%c",&a);
}
return 0;}
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