C语言实现了通讯录的录入信息、保存信息、插入、删除、排序、查找、单个显示等功能。。
完整的代码如下:
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#include <stdio.h> #include <malloc.h> //得到指向大小为Size的内存区域的首字节的指针// #include <string.h> #include <stdlib.h> //标准库函数// #define NULL 0 #define LEN sizeof(struct address_list) //计算字节// int n; struct address_list { char name[30]; //名字 char work[30]; //职业 char handset[30]; //手机 char email[30]; //电子邮件 char address[30]; //通讯地址 struct address_list *next; }; struct address_list *shifang( struct address_list *head); // 释放内存函数声明 //创建函数,不带头结点的链表 struct address_list *creat( void ) { struct address_list *head,*p1,*p2; char name[20]; n=0; p1=( struct address_list *) malloc (LEN); p2=p1; //强制内存转换 printf ( "请输入通讯录的内容!\n姓名输入为0时表示创建完毕!\n" ); printf ( "请输入姓名:" ); gets (name); if ( strcmp (name, "0" )!=0) { strcpy (p1->name,name); printf ( "请输入职业:" ); gets (p1->work); printf ( "请输入手机:" ); gets (p1->handset); printf ( "请输入电子邮件:" ); gets (p1->email); printf ( "请输入通讯地址:" ); gets (p1->address); head=NULL; while (1) { n=n+1; //记录通讯录人数个数 if (n==1) head=p1; else p2->next=p1; p2=p1; printf ( "请输入姓名:" ); gets (name); if ( strcmp (name, "0" )==0) { break ; } else { p1=( struct address_list *) malloc (LEN); strcpy (p1->name,name); printf ( "请输入职业:" ); gets (p1->work); printf ( "请输入手机:" ); gets (p1->handset); printf ( "请输入电子邮件:" ); gets (p1->email); printf ( "请输入通讯地址:" ); gets (p1->address); } } p2->next=NULL; return head; } else return 0; } //输出函数 void print( struct address_list *head) { struct address_list *p; if (head!=NULL) { p=head; printf ( "本通讯录现在共有%d人:\n" ,n); printf ( "---姓名-------职业--------手机-------Email-------通讯地址\n" ); printf ( "==================================\n" ); do { printf ( "== %s" ,p->name); printf ( " " ); printf ( "%s" ,p->work); printf ( " " ); printf ( "%s" ,p->handset); printf ( " " ); printf ( "%s" ,p->email); printf ( " " ); printf ( "%s" ,p->address); printf ( " \n" ); p=p->next; } while (p!=NULL); printf ( "==================================\n" ); } else printf ( "通讯录为空,无法输出!\n" ); } //增加函数 struct address_list *insert( struct address_list *head) { struct address_list *p0,*p1,*p2; char name[20]; p1=head; printf ( "请输入增加的内容:\n" ); printf ( "请输入姓名:" ); gets (name); if ( strcmp (name, "0" )==0) { printf ( "姓名不能为0,增加失败!\n" ); return (head); } else { p0=( struct address_list *) malloc (LEN); strcpy (p0->name,name); printf ( "请输入职业:" ); gets (p0->work); printf ( "请输入手机:" ); gets (p0->handset); printf ( "请输入电子邮件:" ); gets (p0->email); printf ( "请输入通讯地址:" ); gets (p0->address); n=n+1; if (head==NULL) { head=p0; p0->next=NULL; return head; } else { while ( strcmp (p0->name,p1->name)>0&&(p1->next!=NULL)) { p2=p1; p1=p1->next; } if ( strcmp (p0->name,p1->name)<0 || strcmp (p0->name,p1->name)==0) { if (head==p1) { head=p0; } else { p2->next=p0; } p0->next=p1; } else { p1->next=p0; p0->next=NULL; } return head; } } } struct address_list* delete_txl( struct address_list *head) { struct address_list *p,*q; char name[30]; if (head==NULL) { printf ( "通讯录为空,无法显示!\n" ); return head; } p=head; printf ( "请输入需要删除的人的姓名:" ); gets (name); if ( strcmp (head->name,name)==0) { head=head->next; free (p); printf ( "删除操作成功!\n" ); return head; } else { q=head,p=head->next; while (p!=NULL) { if ( strcmp (p->name,name)==0) { q->next=p->next; free (p); printf ( "删除操作成功!\n" ); return head; } p=p->next; q=q->next; } } } //显示函数 struct address_list *display( struct address_list *head) { struct address_list *p1,*p2; char name[30]; int m; if (head==NULL) { printf ( "通讯录为空,无法显示!\n" ); return head; } p1=head; m=0; printf ( "请输入需要显示人的姓名:" ); gets (name); while (p1!=NULL) { while (( strcmp (p1->name,name))!=0 && p1->next!=NULL) { p2=p1; p1=p1->next; } if ( strcmp (p1->name,name)==0) { m++; printf ( "%s的通讯内容如下:\n" ,name); printf ( "---姓名--------职业--------手机-------Email------通讯地址\n" ); printf ( "==================================\n" ); printf ( "== %s" ,p1->name); printf ( " " ); printf ( "%s" ,p1->work); printf ( " " ); printf ( "%s" ,p1->handset); printf ( " " ); printf ( "%s" ,p1->email); printf ( " " ); printf ( "%s" ,p1->address); printf ( " \n" ); printf ( "==================================\n" ); } p1=p1->next; } if (m==0) { printf ( "此人未在本通讯录中!\n" ); } return (head); } //排序函数 struct address_list *paixu( struct address_list *head) { struct address_list *p1,*p2; int i,j; struct address_list1 { char name[30]; char work[30]; char handset[30]; char email[30]; char address[30]; }; struct address_list1 px[200]; struct address_list1 temp; if (head==NULL) { printf ( "通讯录为空,无法排序!\n" ); return (head); } p1=head; for (i=0;i<n,p1!=NULL;i++) { strcpy (px[i].name,p1->name); strcpy (px[i].work,p1->work); strcpy (px[i].handset,p1->handset); strcpy (px[i].email,p1->email); strcpy (px[i].address,p1->address); p2=p1; p1=p1->next; } head=shifang(head); for (j=0;j<n-1;j++) { for (i=j+1;i<n;i++) { if ( strcmp (px[i].name,px[j].name)<0) { temp=px[i]; px[i]=px[j]; px[j]=temp; } } } p1=( struct address_list *) malloc (LEN); p2=p1; strcpy (p1->name,px[0].name); strcpy (p1->work,px[0].work); strcpy (p1->handset,px[0].handset); strcpy (p1->email,px[0].email); strcpy (p1->address,px[0].address); head=p1; for (i=1;i<n;i++) { p1=( struct address_list *) malloc (LEN); strcpy (p1->name,px[i].name); strcpy (p1->work,px[i].work); strcpy (p1->handset,px[i].handset); strcpy (p1->email,px[i].email); strcpy (p1->address,px[i].address); p2->next=p1; p2=p1; } p2->next=NULL; printf ( "按姓名排序后为:\n" ); print(head); return (head); } //姓名查找函数 struct address_list *search( struct address_list *head) { struct address_list *p1,*p2; int m; char name[30]; if (head==NULL) { printf ( "通讯录为空,无法分类查找!\n" ); return (head); } p1=head; printf ( "********************\n" ); printf ( "** 请输入需要查找的姓名 **\n" ); printf ( "********************\n" ); m=0; gets (name); while (p1!=NULL) { while ( strcmp (p1->name,name)!=0&&p1->next!=NULL) { p2=p1; p1=p1->next; } if ( strcmp (p1->name,name)==0) { m++; printf ( "你查找的内容是:\n" ); printf ( "+++++++++++++++++++++++++++++++++++\n" ); printf ( "++ %s %s %s %s %s\n" ,p1->name,p1->work,p1->handset,p1->email,p1->address); printf ( "+++++++++++++++++++++++++++++++++++\n" ); } p1=p1->next; if (m==0) { printf ( "此人未在本通讯录中!\n" ); } break ; } return (head); } //释放内存函数 struct address_list *shifang( struct address_list *head) { struct address_list *p1; while (head!=NULL) { p1=head; head=head->next; free (p1); } return (head); } //文件写入函数 void save( struct address_list *head) { FILE *fp; struct address_list *p1; char tong[30]; if (head==NULL) { printf ( "通讯录为空,无法存储!\n" ); return ; } printf ( "请输入保存后的文件名:" ); gets (tong); fp= fopen ( "(tong).txt" , "w" ); if (fp==NULL) { printf ( "cannot open file\n" ); return ; } p1=head; fprintf (fp, "姓名 职业 手机 Email 通讯地址\n" ); for (;p1!=NULL;) { fprintf (fp, "%s %s %s %s %s\n" ,p1->name,p1->work,p1->handset,p1->email,p1->address); p1=p1->next; } printf ( "保存完毕!\n" ); fclose (fp); } //文件读出函数 struct address_list *load( struct address_list *head) { FILE *fp; char tong[30]; struct address_list *p1,*p2; printf ( "请输入要输出的文件名:" ); gets (tong); fp= fopen ( "(tong).txt" , "r" ); if (fp==NULL) { printf ( "此通讯录名不存在,无法输出!\n" ); return (head); } else { head=shifang(head); } p1=( struct address_list *) malloc (LEN); fscanf (fp, "%s%s%s%s%s" ,&p1->name,&p1->work,&p1->handset,&p1->email,&p1->address); if ( feof (fp)!=0) { printf ( "文件为空,无法打开!\n" ); return (head); } else { rewind (fp); p2=p1; head=p1; n=0; while ( feof (fp)==0) { fscanf (fp, "%s%s%s%s%s" ,&p1->name,&p1->work,&p1->handset,&p1->email,&p1->address); if ( feof (fp)!=0) break ; p2->next=p1; p2=p1; p1=( struct address_list *) malloc (LEN); n=n+1; } p2->next=NULL; p1=head; head=head->next; n=n-1; free (p1); print(head); printf ( "打开完毕!\n" ); return (head); } fclose (fp); } //综合操作函数 struct address_list *menu( struct address_list *head) { char num[10]; while (1) { printf ( "*********************\n" ); printf ( "*** 1 姓名查找 ****\n" ); printf ( "*** 2 单个显示 ****\n" ); printf ( "*** 3 增加 ****\n" ); printf ( "*** 4 退出 ****\n" ); printf ( "*********************\n" ); printf ( "请输入您选择的操作:" ); gets (num); switch (*num) { case '1' : { head=search(head); //姓名查找 print(head); } break ; case '2' : { head=display(head); //显示 } break ; case '3' : { head=insert(head); //增加 print(head); } break ; case '4' : return head; default : printf ( "操作错误,此项不存在!\n" ); break ; } if ( strcmp (num, "6" )==0) break ; } return head; } //主函数 void main() { struct address_list *head=NULL; char num[10]; printf ( "*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*\n" ); printf ( "*=* 程序说明 *=*\n" ); printf ( "*=* 请及时保存创建完毕的通讯录内容! *=*\n" ); printf ( "*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*\n" ); while (1) { printf ( "************************\n" ); printf ( "*** 1 创建通讯录 ****\n" ); printf ( "*** 2 按名字排序 ****\n" ); printf ( "*** 3 综合操作 ****\n" ); printf ( "*** 4 保存 ****\n" ); printf ( "*** 5 打开 ****\n" ); printf ( "*** 6 删除 ****\n" ); printf ( "*** 7 退出 ****\n" ); printf ( "************************\n" ); printf ( "请输入您选择的操作:" ); gets (num); switch (*num) { case '1' : { if (head==NULL) { head=creat(); //创建 print(head); } else { head=shifang(head); head=creat(); //重新创建 print(head); } } break ; case '2' : { head=paixu(head); //排序 } break ; case '3' : { head=menu(head); //综合操作 } break ; case '4' : { save(head); //文件保存 print(head); } break ; case '5' : { head=load(head); //文件输出 } break ; case '6' : { head=delete_txl(head); //删除 print(head); } break ; case '7' : head=shifang(head); break ; default : printf ( "操作错误,此项不存在!\n" ); break ; } if ( strcmp (num, "7" )==0) break ; } } |
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://blog.csdn.net/Hackbuteer1/article/details/6573488