學習c語言階段寫的乙個程式，實現了乙個類似手機通訊錄的東西，有新增好友，列表資訊，搜尋好友，刪除好友等功能。新增好友或刪除好友時會對配置檔案進行相應操作，程式停止後，再次執行時，先從配置檔案中讀取資訊，搭建鍊錶，上次的資訊便不會丟失。
#ifndef __linklist_h__
#define __linklist_h__
#define true 1
#define false 0
typedef struct
linkdata;
typedef struct _node
node;
void menu(); //選單
node* create_list(); //建立鍊錶
int insert(node *head); //新增好友
int load (node *head); //載入配置檔案
int sort (node *head); //排序
void search(node *head); //搜尋好友
int delete (node *head); //刪除好友
void display(node *head); //顯示好友列表
node* find_element(node* h, char name);
void display_pos(node *h);
int get_len(node * head);
#endif
#include #include #include "linklist.h"
void menu()
int load (node *head)
linkdata buf[10] = ;
int ret;
while (ret = fread (buf, sizeof(linkdata), 1, fp))
if(ret == 0 && !feof(fp))
fclose (fp);
sort (head);
return true;
}void display_label ()
void display (node *head)
}node* create_list()
head->next = null;
return head;
}int sort (node *head)
cur = cur->next;
} tmp = tmp->next;
}return true;
}int refile(int id)
file *fp1 = fopen("bak", "w+");
if (fp1 == null)
linkdata buf[10] = ;
// 拷貝乙個備份
int ret;
while (ret = fread(buf, sizeof(linkdata), 1, fp))
if(ret == 0 && !feof(fp))
fclose(fp);
fclose(fp1);
fp = fopen("peizhi", "w+");
fp1 = fopen("bak", "r+");
//刪除資訊，更新檔案
while (ret = fread(buf, sizeof(linkdata), 1, fp1))
if(ret == 0 && !feof(fp1))
fclose(fp);
fclose(fp1);
return 0;
}int insert_pos(node *head, linkdata buf)
int insert(node *head);
printf ("請輸入好友資訊\n");
printf ("id號 ：");
scanf ("%d", &data.id);
printf ("姓名 ：");
scanf ("%s", data.name);
printf ("手機號碼 ：");
scanf ("%s", data.pnum);
printf ("家庭住址 ：");
scanf ("%s", data.addr);
printf ("公司** ：");
scanf ("%s", data.cnum);
node->data = data;
node->next = head->next;
head->next = node;
if (node->data.id==0 || node->data.name==null || node->data.pnum==null
|| node->data.addr==null || node->data.cnum==null)
else
fclose (p);
sort (head);
return true;
}node* find_element(node* h, char name)
tmp = tmp->next; }
if (tmp == null)
return false;
return tmp;
}int delete_pos(node* head, int pos)
if (tmp == null)
node *p = tmp->next;
tmp->next = p->next;
free(p);
return true;
}int count_num(node *head, char *name)
tmp = tmp->next; }
return count;
}void search(node *head)
}int delete (node *head)
tmp = tmp->next;
} if (tmp == null)
return false;
node *p = tmp->next;
tmp->next = p->next;
refile (p->data.id);
free(p);
printf ("刪除成功\n");
return true;
} else
printf ("請輸入id號指定刪除好友：");
int id;
scanf ("%d",&id);
node *tmp = head;
while (tmp)
tmp = tmp->next;
} if (tmp == null)
return false;
node *p = tmp->next;
tmp->next = p->next;
free(p);
printf ("刪除成功\n");
refile (id);
return true; }}
void display_pos(node *h)
int get_len(node * head)
return len;
}
#include #include "linklist.h"
#include int main()
; linkdata f2 = ;
linkdata f3 = ;
linkdata f4 = ;
linkdata f5 = ;
linkdata buf[10];
buf[0] = f1;
buf[1] = f2;
buf[2] = f3;
buf[3] = f4;
buf[4] = f5;
//往配置檔案內寫入內建聯絡人，方便測試功能，最好寫入後將此部分注釋，避免重複寫入
file *fd = fopen ("peizhi", "w+");
fwrite (buf, sizeof(linkdata), 1, fd);
fwrite (buf+1, sizeof(linkdata), 1, fd);
fwrite (buf+2, sizeof(linkdata), 1, fd);
fwrite (buf+3, sizeof(linkdata), 1, fd);
fwrite (buf+4, sizeof(linkdata), 1, fd);
fclose (fd);
load (head); //載入配置檔案
char str[20];
while(1)
printf ("請按任意鍵返回選單:");
getchar();
getchar();
printf ("\n");
continue;
}return 0;
}
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