/* ============================================================================ Name : staff_info_system.c Author : CodeSun Compiler : GCC4.7 System : Fedora17 Version : 0.0.1 Description : Staff Information System ============================================================================ */#include#include #include //----------------------------Data Block---------------------------------------typedef struct Staff{ char id[10],name[20],sex[5],birth[10],edu[20],job[20]; int pay; struct Staff* next;} Node;typedef struct linkedlist_t { struct Staff* head; struct Staff* tail;} LinkedList;//------------------------------------------------------------------------------void menu();void mode(LinkedList* list);void input(Node* rhs);void output(Node* rhs);void search_edu(LinkedList* list);void search_pay(LinkedList* list);void initlinkedlist(LinkedList* list);void readlinkedlist(LinkedList* list);void writelinkedlist(LinkedList* list);void insert(LinkedList* list);void scan(LinkedList* list);void delete(LinkedList* list);void update(LinkedList* list);_Bool empty(LinkedList* list);//-----------------------------------------------------------------------------int main(void) { char flag='z'; LinkedList list_m; initlinkedlist(&list_m); readlinkedlist(&list_m); mode(&list_m); printf("Are you sure to save the change?(y/n)"); scanf(" %c",&flag); if(flag=='y') writelinkedlist(&list_m); return 0;}//---------------------------------------------------------------------------------------void menu(){ printf("|----------------|\n"); printf("| Menu |\n"); printf("|----------------|\n"); printf("| 1.Insert |\n"); printf("| 2.Scan |\n"); printf("| 3.Search |\n"); printf("| 4.Delete |\n"); printf("| 5.Update |\n"); printf("| 0.Exit |\n"); printf("|----------------|\n");}void mode(LinkedList* list){ int mode; int mmode; while(1) { menu(); printf("Please enter the mode: "); scanf("%d",&mode); switch(mode) { case 0: return; case 1: insert(list); break; case 2: scan(list); break; case 3: printf("Search by\n1.payment\n2.edubackground\n"); scanf("%d",&mmode); if(mmode==1) search_pay(list); else search_edu(list); break; case 4: delete(list); break; case 5: update(list); break; default: printf("Error:wrong mode!\n"); } }}//-------------------------------------------------------------------------------------------//---------------------------------------IO---------------------------------void input(Node* rhs){ printf("ID: "); scanf("%s",rhs->id); printf("Name: "); scanf("%s",rhs->name); printf("Sex: "); scanf("%s",rhs->sex); printf("Birthday: "); scanf("%s",rhs->birth); printf("EducationBackground: "); scanf("%s",rhs->edu); printf("Position: "); scanf("%s",rhs->job); printf("Payment: "); scanf("%d",&(rhs->pay)); rhs->next=0;}void output(Node* rhs){ printf("ID: %s\n",rhs->id); printf("Name: %s\n",rhs->name); printf("Sex: %s\n",rhs->sex); printf("Birthday: %s\n",rhs->birth); printf("Education: %s\n",rhs->edu); printf("Position: %s\n",rhs->job); printf("Payment: %d\n",rhs->pay);}//----------------------------------------------------------------------------//------------------------------Function Search-------------------------------void search_edu(LinkedList* list){ char edu_m[20]; printf("Enter the education background: "); scanf("%s",edu_m); for(Node* p=list->head;p!=0;p=p->next) { if(strcmp(edu_m,p->edu)==0) output(p); }}void search_pay(LinkedList* list){ int pay_m; printf("Enter the payment: "); scanf("%d",&pay_m); for(Node* p=list->head;p!=0;p=p->next) { if(pay_m==p->pay) output(p); }}//------------------------------------------------------------------------------_Bool empty(LinkedList* list){ return list->head==0;}void insert(LinkedList* list){ if(!empty(list)) { Node* temp=(Node*)malloc(sizeof(Node)); input(temp); list->tail->next=temp; list->tail=temp; } else { list->head=list->tail=(Node*)malloc(sizeof(Node)); input(list->head); } }void delete(LinkedList* list){ if(empty(list)) { printf("Error: no person in the list!\n"); return; } char id_m[10]; printf("Enter the id whose you want to delete: "); scanf("%s",id_m); Node* p=list->head; if(strcmp(p->id,id_m)==0) { list->head=p->next; free(p); //If the queue is empty, the tail should be NULL(0) if(empty(list)) list->tail=0; return; } for(;p!=0;p=p->next) { //Take care, don't ignore the tail of the queue! if(strcmp(p->next->id,id_m)==0) { if(p->next->next==0) list->tail=p; Node* temp=p->next; p->next=temp->next; free(temp); break; } }}void scan(LinkedList* list){ if(empty(list)) { printf("Error: no person in the list!\n"); return; } for(Node* p=list->head;p!=0;p=p->next) output(p);}void update(LinkedList* list){ if(empty(list)) { printf("Error: no person in the list!\n"); return; } char id_m[10]; printf("Enter the ID you want to update: "); scanf("%s",id_m); for(Node* p=list->head;p!=0;p=p->next) { if(strcmp(p->id,id_m)==0) { char flag='z'; printf("Update Name?(y/n)"); scanf(" %c",&flag); if(flag=='y') { printf("Name: "); scanf("%s",p->name); } flag='z'; printf("Update Sex?(y/n)"); scanf(" %c",&flag); if(flag=='y') { printf("Sex: "); scanf("%s",p->sex); } flag='z'; printf("Update Birthday?(y/n)"); scanf(" %c",&flag); if(flag=='y') { printf("Birthday: "); scanf("%s",p->birth); } flag='z'; printf("Update Education?(y/n)"); scanf(" %c",&flag); if(flag=='y') { printf("Education: "); scanf("%s",p->edu); } flag='z'; printf("Update Position?(y/n)"); scanf(" %c",&flag); if(flag=='y') { printf("Position: "); scanf("%s",p->job); } flag='z'; printf("Update Payment?(y/n)"); scanf(" %c",&flag); if(flag=='y') { printf("Payment: "); scanf("%d",&(p->pay)); } break; } }}//-------------------Get ready for LinkedList---------------------//Initlize the queuevoid initlinkedlist(LinkedList* list){ list->head=list->tail=0;}//Read the data in the filevoid readlinkedlist(LinkedList* list){ FILE* fp; Node* p=list->head=(Node*)malloc(sizeof(Node)); p->next=0; if((fp=fopen("data.dat","r"))!=NULL) { while(fscanf(fp,"%s %s %s %s %s %s %d",p->id,p->name,p->sex,p->birth,p->edu,p->job,&(p->pay))!=EOF) { list->tail=p; p->next=(Node*)malloc(sizeof(Node)); p=p->next; p->next=0; } } fclose(fp); free(p); if(list->head==p) list->head=list->tail=0; else list->tail->next=0;}//Write the data to the filevoid writelinkedlist(LinkedList* list){ FILE* fp; if((fp=fopen("data.dat","w"))!=NULL) { for(Node* p=list->head;p!=0;p=p->next) fprintf(fp,"%s %s %s %s %s %s %d\n",p->id,p->name,p->sex,p->birth,p->edu,p->job,p->pay); } fclose(fp);}//----------------------------------------------------------------昨儿，刚看完《C primer plus》，写段代码玩玩，欢迎评论