Linux下的C语言编程——文件存储链表实现的通讯录

今天药忘吃喽~ 2022-07-15 11:59 284阅读 0赞

研究了好久才把文件加进去，主要是自己太菜了，希望能给大家一点启发！

#include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
    
    #define N 15
    
    struct book// 瀹氫箟缁撴瀯浣?{
    	char name[N];//濮撳悕
    	char sex[N];// 鎬у埆
    	char number[N];//鍙风爜
    	char QQ[N];// qq
    	char addr[2*N];// 鍦板潃
    //	struct contact *next;
    };
    
    typedef struct book Book;
    //typedef struct contact *Link;
    
    struct contact
    {
    	Book content;
    	struct contact *next;
    };
    
    typedef struct contact Contact;
    typedef struct contact *Link;
    
    Link creat()
    {
    	Link p;
    
    	p = (Link)malloc(sizeof(Contact));
    
    	if(!(p))
    	{
    		printf("malloc error\n");
    		exit(-1);
    	}
    	p->next = NULL;
    
    	return p;
    }
    
    void openfile(Link *head)
    {
    	FILE *fp;
    	Book content;
    	Link p1;
    	Link p2;
    
    	p1 = *head;
    
    	if((fp = fopen("contact.txt","r+")) == NULL)
    	{
    		printf("can not open the file!\n");
    		exit(-1);
    	}
    	else
    	{
    		while(fread(&content,sizeof(content),1,fp) == 1)
    		{
    			p2 = creat();
    			p2->content = content;
    			p1->next = p2;
    			p1 = p2;
    		}
    	}
    }
    
    void savefile(Link head)
    {
    	FILE *fp;
    
    	Link p;
    	Book content;
    
    //	remove("contact.txt");
    
    	if((fp = fopen("contact.txt","w+")) == NULL)
    	{
    		printf("can not open the file!\n");
    		exit(-1);
    	}
    
    	p = head->next;
    
    	while(p != NULL)
    	{
    		fwrite(&p->content,sizeof(content),1,fp);
    		p = p->next;
    	}
    }
    
    void creat_list(Link *head)//鍒涘缓閾捐〃
    {
    	*head = (Link)malloc(sizeof(Contact));
    
    	if(!(*head))
    	{
    		printf("malloc error!\n");
    		exit(-1);
    	}
    
    	(*head)->next = NULL;
    }
    
    int len_list(Link *head)//璁＄畻閾捐〃闀垮害
    {
    	Link temp = (*head)->next;
    	int len = 0;
    	int i;
    
    	while(temp != NULL)
    	{
    		temp = temp->next;
    		len++;
    	}
    
    	return len;
    }
    
    void input(Link p)//杈撳叆鑺傜偣鍊?{
    	printf("\n璇疯緭鍏ヨ仈绯讳汉濮撳悕\n");
    	scanf("%s",p->content.name);
    	
    	printf("璇疯緭鍏ヨ仈绯讳汉鎬у埆\n");
    	scanf("%s",p->content.sex);
    	
    	printf("璇疯緭鍏ヨ仈绯讳汉鐢佃瘽\n");
    	scanf("%s",p->content.number);
    	
    	printf("璇疯緭鍏ヨ仈绯讳汉QQ\n");
    	scanf("%s",p->content.QQ);
    	
    	printf("璇疯緭鍏ヨ仈绯讳汉鍦板潃\n");
    	scanf("%s",p->content.addr);
    }
    
    void output(Link p)//杈撳嚭鑺傜偣鍊?{	
    	printf("濮撳悕: %s",p->content.name);
    	printf("\n");
    	
    	printf("鎬у埆: %s",p->content.sex);
    	printf("\n");
    	
    	printf("鐢佃瘽: %s",p->content.number);
    	printf("\n");
    	
    	printf("QQ鍙? %s",p->content.QQ);
    	printf("\n");
    	
    	printf("鍦板潃: %s",p->content.addr);
    	printf("\n");
    }
    
    void insert_tail(Link *head)//灏炬彃娉曞缓绔嬮摼琛?{
    	Link temp = *head;
    	Link p;
    	int n;
    	int i;
    	int m;
    
    	printf("input the number you want to add!\n");
    	scanf("%d",&n);
    
    	for(i = 0; i < n; i++)
    	{
    		p = (Link)malloc(sizeof(Contact));
    
    		if(!p)
    		{
    			printf("malloc error!\n");
    			exit(-1);
    		}
    
    		input(p);
    
    		while(temp->next != NULL)
    		{
    			temp = temp->next;
    		}
    
    		p->next = NULL;
    		temp->next = p;
    
    	}
    
    }
    
    void display(Link head)//閬嶅巻閾捐〃
    {
    	Link temp  = head->next;
    
    	if(head->next == NULL)
    	{
    		printf("contact error!\n");
    	}
    
    	while(temp != NULL)
    	{
    		printf("濮撳悕: %s",temp->content.name);
    		printf("\n");
    	
    		printf("鎬у埆: %s",temp->content.sex);
    		printf("\n");
    	
    		printf("鐢佃瘽: %s",temp->content.number);
    		printf("\n");
    	
    		printf("QQ鍙? %s",temp->content.QQ);
    		printf("\n");
    	
    		printf("鍦板潃: %s",temp->content.addr);
    		printf("\n");
    
    		temp = temp->next;
    	}
    }
    
    void find_name(Link head)//鎸夊鍚嶆煡鎵?{
    	Link temp = head->next;
    
    	char str[N];
    	int i = 0;
    	
    	printf("input the name you want to search!\n");
    	scanf("%s",str);
    	
    	if(head->next == NULL)
    	{
    		printf("contact empty!\n");
    	}
    
    	while(temp != NULL)
    	{
    		if(strcmp(temp->content.name,str) == 0)
    		{
    			output(temp);
    			i++;
    		}
    		temp = temp->next;
    	}
    
    	if(i == 0)
    	{
    		printf("no such persion!\n");
    	}
    }
    
    void find_number(Link head)//鎸夊彿鐮佹煡鎵?{
    	Link temp = head->next;
    
    	char str[N];
    	int i = 0;
    	
    	printf("input the number you want to search!\n");
    	scanf("%s",str);
    	
    	if(head->next == NULL)
    	{
    		printf("contact empty!\n");
    	}
    
    	while(temp != NULL)
    	{
    		if(strcmp(temp->content.number,str) == 0)
    		{
    			output(temp);
    			i++;
    		}
    		temp = temp->next;
    	}
    
    	if(i == 0)
    	{
    		printf("no such persion!\n");
    	}
    }
    
    void find_qq(Link head)//鎸塹q鍙锋煡鎵?{
    	Link temp = head->next;
    
    	char str[N];
    	int i = 0;
    	
    	printf("input the QQ you want to search!\n");
    	scanf("%s",str);
    	
    	if(head->next == NULL)
    	{
    		printf("contact empty!\n");
    	}
    
    	while(temp != NULL)
    	{
    		if(strcmp(temp->content.QQ,str) == 0)
    		{
    			output(temp);
    			i++;
    		}
    		temp = temp->next;
    	}
    
    	if(i == 0)
    	{
    		printf("no such persion!\n");
    	}
    }
    
    void find_addr(Link head)//鎸夊湴鍧€鏌ユ壘
    {
    	Link temp = head->next;
    
    	char str[2*N];
    	int i = 0;
    	
    	printf("input the addr you want to search!\n");
    	scanf("%s",str);
    	
    	if(head->next == NULL)
    	{
    		printf("contact empty!\n");
    	}
    
    	while(temp != NULL)
    	{
    		if(strcmp(temp->content.addr,str) == 0)
    		{
    			output(temp);
    			i++;
    		}
    		temp = temp->next;
    	}
    
    	if(i == 0)
    	{
    		printf("no such persion!\n");
    	}
    }
    
    void search_node(Link head)//鏌ユ壘鍑芥暟
    {
    	//Link temp = head->next;
    	
    	int n;
    	char pos;
    
    
    	printf("\n1:鎸夊鍚嶆煡鎵綷n2:鎸夌數璇濇煡鎵綷n3:鎸塓Q鍙锋煡鎵綷n4:鎸夊湴鍧€鏌ユ壘\n");
    
    	printf("璇疯緭鍏ヤ綘鐨勯€夋嫨!\n");
    	scanf("%d",&n);
    	switch(n)
    	{
    		case 1:
    			find_name(head);
    				
    			while(1)
    			{
    				printf("鏄惁缁х画鏌ユ壘[Y/N]?");
    				scanf("%c",pos);
    
    				if(pos == 'y' || pos == 'Y')
    				{
    					find_name(head);
    				}
    				else
    				{
    					break;
    				}
    			}
    			break;
    		case 2:
    			find_number(head);
    				
    			while(1)
    			{
    				printf("鏄惁缁х画鏌ユ壘[Y/N]?");
    				scanf("%c",pos);
    
    				if(pos == 'y' || pos == 'Y')
    				{
    					find_number(head);
    				}
    				else
    				{
    					break;
    				}
    			}
    			break;
    		case 3:
    			find_qq(head);
    			
    			while(1)
    			{
    				printf("鏄惁缁х画鏌ユ壘[Y/N]?");
    				scanf("%c",pos);
    
    				if(pos == 'y' || pos == 'Y')
    				{
    					find_qq(head);
    				}
    				else
    				{
    					break;
    				}
    			}
    			break;
    		case 4:
    			find_addr(head);
    			
    			while(1)
    			{
    				printf("鏄惁缁х画鏌ユ壘[Y/N]?");
    				scanf("%c",pos);
    
    				if(pos == 'y' || pos == 'Y')
    				{
    					find_addr(head);
    				}
    				else
    				{
    					break;
    				}
    			}
    			break;
    		default:
    			break;
    	}
    }
    
    void delete_node(Link *head)//鍒犻櫎鍑芥暟
    {
    	Link temp = (*head)->next;
    	Link p = *head;
    	char str[N];
    	char str1[N];
    	int i = 0;
    
    	printf("input the name you want to delete!\n");
    	scanf("%s",str);
    
    	while(temp != NULL)
    	{
    		if(strcmp(temp->content.name,str) == 0)
    		{
    			output(temp);
    			i++;
    		}
    
    		temp = temp->next;
    	}
    
    	temp = (*head)->next;
    
    	if(i == 0)
    	{
    		printf("no such persion!\n");
    	}
    	else if(i == 1)
    		{
    			while((strcmp(temp->content.name,str) != 0) && temp->next != NULL)
    			{
    				p = temp;
    				temp = temp->next;
    			}
    
    			if(strcmp(temp->content.name,str) == 0)
    			{
    				p->next = temp->next;
    				free(temp);
    			}
    		}
    	else
    	{
    		printf("input the number you want to delete!\n");
    		scanf("%s",str1);
    		
    		while((strcmp(temp->content.number,str1) != 0) && temp->next != NULL)
    			{
    				p = temp;
    				temp = temp->next;
    			}
    
    			if(strcmp(temp->content.number,str1) == 0)
    			{
    				p->next = temp->next;
    				free(temp);
    			}
    	}
    
    //	len_list(head);
    
    }
    
    void alter_name(Link p)//淇敼濮撳悕
    {
    	printf("璇疯緭鍏ヤ綘鎯虫敼鎴愮殑鍚嶅瓧!\n");
    	scanf("%s",p->content.name);
    	output(p);
    }
    
    void alter_sex(Link p)// 淇敼鎬у埆
    {
    	printf("璇疯緭鍏ヤ綘鎯虫敼鎴愮殑鎬у埆!\n");
    	scanf("%s",p->content.sex);
    	output(p);
    }
    
    void alter_number(Link p)//淇敼鍙风爜
    {
    	printf("璇疯緭鍏ヤ綘鎯虫敼鎴愮殑鍙风爜!\n");
    	scanf("%s",p->content.number);
    	output(p);
    }
    void alter_qq(Link p)// 淇敼qq
    {
    	printf("璇疯緭鍏ヤ綘鎯虫敼鎴愮殑QQ!\n");
    	scanf("%s",p->content.QQ);
    	output(p);
    }
    
    void alter_addr(Link p)// 淇敼鍦板潃
    {
    	printf("璇疯緭鍏ヤ綘鎯虫敼鎴愮殑鍦板潃!\n");
    	scanf("%s",p->content.addr);
    	output(p);
    }
    
    void atler(Link head)// 淇敼鍑芥暟
    {
    	int n;
    	char str[2*N];
    	Link temp = head->next;
    
    	printf("input the name you want to atler!\n");
    	scanf("%s",str);
    
    	while((strcmp(temp->content.name,str) != 0) && temp->next != NULL)
    	{
    		temp = temp->next;
    	}
    
    	if(strcmp(temp->content.name,str) == 0)
    	{
    		output(temp);
    		printf("\n1:淇敼濮撳悕\n2:淇敼鎬у埆\n3:淇敼鍙风爜\n4:淇敼QQ鍙穃n5:淇敼鍦板潃\n");
    		printf("input your choic!\n");
    		scanf("%d",&n);
    
    		switch(n)
    		{
    			case 1:
    				alter_name(temp);
    				break;
    			case 2:
    				alter_sex(temp);
    				break;
    			case 3:
    				alter_number(temp);
    				break;
    			case 4:
    				alter_qq(temp);
    				break;
    			case 5:
    				alter_addr(temp);
    				break;
    			default:
    				printf("input error!\n");
    				break;
    		}
    	}
    
    }
    
    void clear(Link *head)// 娓呯┖閾捐〃
    {
    	Link temp = (*head)->next;
    
    	while(temp != NULL)
    	{
    		(*head)->next = (temp->next);
    		free(temp);
    		temp = (*head)->next;
    	}
    
    	(*head)->next = NULL;
    }
    
    int main()
    {
    	Link head;
    
    	int n;
    
    	char pos[5];
    	
    	creat_list(&head);
    
    	openfile(&head);
    
    	system("clear");
    	while(1)
    	{
    		printf("\n1:鍒涘缓閫氳褰昞n2閬嶅巻閫氳褰?\n3:鏌ユ壘鑱旂郴浜篭n4:鍒犻櫎鑱旂郴浜篭n5:娣诲姞鑱旂郴浜篭n6:淇敼鑱旂郴浜篭n0:閫€鍑篭n");
    		printf("璇疯緭鍏ヤ綘鐨勯€夋嫨:\n");
    		scanf("%d",&n);
    		
    		switch(n)
    		{
    			case 1:
    				insert_tail(&head);
    				break;
    			case 2:
    				display(head);
    				break;
    			case 3:
    				search_node(head);
    				break;
    			case 4:
    				delete_node(&head);
    				
    				while(1)
    				{
    					printf("鏄惁缁х画鍒犻櫎[Y/N]?");
    					scanf("%s",pos);
    
    					if(strcmp(pos,"y"))
    					{
    						delete_node(&head);
    					}
    					else
    					{
    						break;
    					}
    				}
    				break;
    			case 5:
    				insert_tail(&head);
    				while(1)
    				{
    					printf("鏄惁缁х画娣诲姞[Y/N]?");
    					scanf("%s",pos);
    
    					if(strcmp(pos,"y") == 0)
    					{
    						insert_tail(&head);
    					}
    					else
    					{
    						break;
    					}
    				}
    				break;
    			case 6:
    				atler(head);
    				while(1)
    				{
    					printf("鏄惁缁х画淇敼[Y/N]?");
    					scanf("%s",pos);
    
    					if(strcmp(pos,"y") == 0)
    					{
    						atler(head);
    					}
    					else
    					{
    						break;
    					}
    				}
    				break;
    			case 7:
    				clear(&head);
    				break;
    			case 0:
    				savefile(head);
    				exit(0);
    				break;
    			default:
    				printf("input error!\n");
    				break;
    		}
    	}
    
        return 0;
    }