tongxunlu.rar_C语言_visual c

#include<stdio.h> #include<stdlib.h> #include<string.h> #define LEN sizeof(struct people) struct people { char nam[20]; char mobilephone[20]; char officephone[20]; char homephone[20]; char email[20]; char province[20]; char workunit[20]; char familyaddress[20]; char classes[20]; struct people * next; }; int n; struct people *creat(void); struct people *assign(struct people *head); void add(); void del(); void modify(); void search(); void shuchu(); void main() {struct people *p=NULL; int m; while(1) {printf("\n **********通讯录管理系统**********\n"); printf("\n** 创建，请按1 **"); printf("\n** 追加，请按2 **"); printf("\n** 删除，请按3 **"); printf("\n** 修改，请按4 **"); printf("\n** 查询，请按5 **"); printf("\n** 输出，请按6 **"); printf("\n** 退出，请按0 **\n"); scanf("%d",&m); if(m>=0&&m<=6) { switch(m) { case 1:p=creat(); break; case 2: add(); break; case 3: del(); break; case 4: modify(); break; case 5: search(); break; case 6: shuchu(); break; case 0: exit(0); } printf("操作完成，再次输入\n"); } else printf("操作错误，再次选择\n"); } }//主函 struct people *creat(void) {FILE *fp; int a=1; struct people *p1,*p2,*head; p1=p2=head=(struct people*)malloc(LEN); n=0; while(a) {p1=(struct people*)malloc(LEN); printf("输入姓名"); scanf("%s",p1->nam); printf("输入手机号"); scanf("%s",p1->mobilephone); printf("输入办公室电话号"); scanf("%s",p1->officephone); printf("输入家庭号码"); scanf("%s",p1->homephone); printf("输入邮件号"); scanf("%s",p1->email); printf("输入省市"); scanf("%s",p1->province); printf("输入工作单位"); scanf("%s",p1->workunit); printf("输入住址"); scanf("%s",p1->familyaddress); printf("输入类别"); scanf("%s",p1->classes); n=n+1; if(n==1)head=p1; else p2->next=p1; p2=p1; printf("是否输继续入信息，'是按1'or'否按0':\n"); scanf("%d",&a); p1=(struct people*)malloc(LEN); } p2->next=NULL; head=assign(head); fp=fopen("peo.txt","w"); p1=head; while(p1!=NULL) { fwrite(p1,LEN,1,fp); p1=p1->next; } free(p1); fclose(fp); return(head); }//建立连表、文件，排序 struct people *assign(struct people *head) {struct people *first; //排列后有序链的表头指针 struct people *tail; //排列后有序链的表尾指针 struct people *p_min; //保留键值更小的节点的前驱节点的指针 struct people *min; //存储最小节点 struct people *p; //当前比较的节点 first = NULL; while(head!=NULL) { for(p=head,min=head;p->next!=NULL; p=p->next) {if(strcmp(p->next->nam,min->nam)<0) {min=p->next; p_min=p; } } if(min==head) head=head->next; else p_min->next=min->next;//中间和尾部节点删除 if(first==NULL) {first=min; tail=min; } else { tail->next=min; tail=min; } } tail->next=NULL; head=first; return(head); }//排序 void add() { FILE *fp; struct people *head,*p1,*p2; p1=(struct people*)malloc(LEN); if((fp=fopen("peo.txt","a"))==NULL) {printf("无法打开文件"); exit(0); } printf("输入姓名"); scanf("%s",p1->nam); printf("输入手机号"); scanf("%s",p1->mobilephone); printf("输入办公室电话号"); scanf("%s",p1->officephone); printf("输入家庭号码"); scanf("%s",p1->homephone); printf("输入邮件号"); scanf("%s",p1->email); printf("输入省市"); scanf("%s",p1->province); printf("输入工作单位"); scanf("%s",p1->workunit); printf("输入住址"); scanf("%s",p1->familyaddress); printf("输入类别"); scanf("%s",p1->classes); fwrite(p1,LEN,1,fp); rewind(fp); p1=(struct people*)malloc(LEN); if((fp=fopen("peo.txt","r"))==NULL) {printf("无法打开文件"); exit(0); } fread(p1,LEN,1,fp); p2=p1; head=p1; while(!feof(fp)) {p1=(struct people*)malloc(LEN); fread(p1,LEN,1,fp); p2->next=p1; p2=p1; } p2->next=NULL; head=assign(head); p2=p1=(struct people*)malloc(LEN); if((fp=fopen("stu.txt","w"))==NULL) {printf("无法打开文件"); exit(0); } while(head!=NULL) {fwrite(head,LEN,1,fp); head=head->next; } free(p1); fclose(fp); }//添加 void del() { FILE *fp; int i=1; struct people *head,*p1,*p2; while(i) {p1=(struct people*)malloc(LEN); if((fp=fopen("peo.txt","r+"))==NULL) {printf("无法打开文件"); exit(0); } fread(p1,LEN,1,fp); p2=p1; head=p1; while(!feof(fp)) {p1=(struct people*)malloc(LEN); fread(p1,LEN,1,fp); p2->next=p1; p2=p1; } p2->next=NULL; rewind(fp); p1=(struct people*)malloc(LEN); printf("请输入要删除的姓名"); scanf("%s",p1->nam); if(strcmp(p1->nam,head->nam)==0) head=head->next; else { p2=head; while(p2->next!=NULL&&(p2->next->nam!=p1->nam)) p2=p2->next; if(p2->next!=NULL) { if(p2->next->next==NULL) p2->next=NULL; else p2->next=p2->next->next; } else printf("要删除的人不存在"); } if((fp=fopen("peo.txt","w"))==NULL) {printf("无法打开文件"); exit(0); } rewind(fp); while(head!=NULL) {fwrite(head,LEN,1,fp); head=head->next; } fclose(fp); free(p1); printf("\n已删除\n继续删除请输入1，否则输入0"); scanf("%d",&i); } }//删除 void modify() {FILE *fp; int m,i=1,k; struct people *p1,*p2,*p; p1=(struct people*)malloc(LEN); while(i) { k=0; printf("请输入要修改的人的姓名"); scanf("%s",p1->nam); if((fp=fopen("peo.txt","r+"))==NULL) {printf("无法打开文件"); exit(0); } while(!feof(fp)) {p2=(struct people*)malloc(LEN); fread(p2,LEN,1,fp); if(strcmp(p1->nam,p2->nam)==0) {k=1; break; } } if(k) {while(m!=7) { printf("\n 已找到该人,\n 修改姓名请输入1\n"); printf("\n 修改手机请输入2\n"); printf("\n 修改办公电话请输入3\n"); printf("\n 修改家庭电话请输入4\n"); printf("\n 修改电子邮箱请输入5\n"); printf("\n 修改所在省市请输入6\n"); printf("\n 修改工作单位请输入7\n"); printf("\n 修改家庭住址请输入8\n"); printf("\n 修改群组请输入9\n"); printf("\n 修改完成请输入10\n"); scanf("%d",&m); if(m>=1&&m<=10) { switch(m) { case 1:{printf("输入新姓名"); scanf("%s",p2->nam); fseek(fp,-LEN,1); fw