航班查询系统 C语言源程序.doc

#include #include #include #define NOD struct plane_liststruct planechar number 10;char start10;char arrive 10;char date10;char starttime10;char arrivingtime10;char price10;char model10;NODchar number 10;char start10;char arrive 10;char date10;char starttime10;char arrivingtime10;char price10;char model10;NOD*next;FILE *fp;/*由文件中的数据生成一个飞机航班的链表，如果文件不存在，则是一个空链表*/NOD *load(char planename) NOD *p,*q,*head; struct plane per; p=(NOD *)malloc(sizeof(NOD); q=head=NULL; if(fp=fopen(planename,rb)=NULL) return head; else while(!feof(fp) if(fread(&per,sizeof(struct plane),1,fp)=1) p=(NOD *)malloc(sizeof(NOD); strcpy(p-number,per.number); strcpy(p-start,per.start); strcpy(p-arrive,per.arrive); strcpy(p-date,per.date); strcpy(p-starttime,per.starttime); strcpy(p-arrivingtime,per.arrivingtime); strcpy(p-price,per.price); strcpy(p-model,per.model); head=p; p-next=q; q=head; fclose(fp); return(head);/*输入*/NOD *insert(NOD *head) NOD *temp,*p; p=head; temp=(NOD *)malloc(sizeof(NOD);printf(nt请输入航班号:);scanf(%s,temp-number);printf(nt请输入起点站:);scanf(%s,temp-start);printf(nt请输入终点站:);scanf(%s,temp-arrive);printf(nt请输入起飞时间:);scanf(%s,temp-starttime);printf(nt请输入到达时间:);scanf(%s,temp-arrivingtime);printf(nt请输入班期:);scanf(%s,temp-date);printf(nt请输入票价:);scanf(%s,temp-price);printf(nt请输入航班型号:);scanf(%s,temp-model);head=temp;temp-next=p;return head;/*保存*/void save(NOD *head, char filename)NOD*p; struct plane per; if(fp=fopen(filename,wb)=NULL) printf( 文件无法写入); exit(0); else p=head; while(p!=NULL) strcpy(per.number,p-number); strcpy(per.start,p-start); strcpy(per.arrive,p-arrive); strcpy(per.date,p-date); strcpy(per.starttime,p-starttime); strcpy(per.arrivingtime,p-arrivingtime); strcpy(per.price,p-price); strcpy(per.model,p-model);if(fwrite(&per,sizeof(struct plane),1,fp)!=1)printf(文件不能写入数据，请检查后重新运行.n);exit(0);p=p-next; fclose(fp); /*显示*/void display(NOD *head) NOD *p; p=head; while(p!=NULL) printf(航班号:%sn,p-number); printf(起点站:%sn,p-start); printf(终点站:%sn,p-arrive); printf(班期:%sn,p-date); printf(起飞时间:%sn,p-starttime);printf(到达时间:%sn,p-arrivingtime); printf(票价:%sn,p-price); printf(飞机型号:%sn,p-model);p=p-next;/*航班号查找*/void finda(NOD *head) NOD *p; char number10; printf(请输入查找航班的编号:); scanf(%s,number); p=head; while (p!=NULL) if(strcmp(number,p-number)=0) printf(航班号:%sn,p-number); printf(起点站:%sn,p-start); printf(终点站:%sn,p-arrive); printf(班期:%sn,p-date); printf(起飞时间:%sn,p-starttime);printf(到达时间:%sn,p-arrivingtime); printf(票价:%sn,p-price); printf(飞机型号:%sn,p-model);break; else p=p-next; if(p=NULL) printf(nt查无此航班n);/*起点站查找*/void findb(NOD *head) NOD *p; char start10; printf(请输入查找航班的起点站:); scanf(%s,start); p=head; while (p!=NULL) if(strcmp(start,p-start)=0) printf(航班号:%sn,p-number); printf(起点站:%sn,p-start); printf(终点站:%sn,p-arrive); printf(班期:%sn,p-date); printf(起飞时间:%sn,p-starttime);printf(到达时间:%sn,p-arrivingtime); printf(票价:%sn,p-price); printf(飞机型号:%sn,p-model);break; else p=p-next; if(p=NULL) printf(nt查无此航班n);/*终点站查找*/void findc(NOD *head) NOD *p; char arrive10; printf(请输入查找航班的终点站:); scanf(%s,arrive); p=head; while (p!=NULL) if(strcmp(arrive,p-arrive)=0) printf(航班号:%sn,p-number); printf(起点站:%sn,p-start); printf(终点站:%sn,p-arrive); printf(班期:%sn,p-date); printf(起飞时间:%sn,p-starttime);printf(到达时间:%sn,p-arrivingtime); printf(票价:%sn,p-price); printf(飞机型号:%sn,p-model);break; else p=p-next; if(p=NULL) printf(nt查无此航班n);/*起飞时间查找*/void findd(NOD *head) NOD *p; char starttime10; printf(请输入查找航班的起飞时间:); scanf(%s,starttime); p=head; while (p!=NULL) if(strcmp(starttime,p-starttime)=0) printf(航班号:%sn,p-number); printf(起点站:%sn,p-start); printf(终点站:%sn,p-arrive); printf(班期:%sn,p-date); printf(起飞时间:%sn,p-starttime);printf(到达时间:%sn,p-arrivingtime); printf(票价:%sn,p-price); printf(飞机型号:%sn,p-model);break; else p=p-next; if(p=NULL) printf(nt查无此航班n);/*到达时间查找*/void finde(NOD *head) NOD *p; char arrivingtime10; printf(请输入查找航班的到达时间:); scanf(%s,arrivingtime); p=head; while (p!=NULL) if(strcmp(arrivingtime,p-arrivingtime)=0) printf(航班号:%sn,p-number); printf(起点站:%sn,p-start); printf(终点站:%sn,p-arrive); printf(班期:%sn,p-date); printf(起飞时间:%sn,p-starttime);printf(到达时间:%sn,p-arrivingtime); printf(票价:%sn,p-price); printf(飞机型号:%sn,p-model);break; else p=p-next; if(p=NULL) printf(nt查无此航班n);/*删除*/NOD *dele(NOD *head) NOD *p,*q; char number5; printf(:请输入要删除的航班编号); scanf(%s,number); p=q=head; while(p!=NULL) if(strcmp(number,p-number)=0) if(head=p) head=p-next; else q-next=p-next; free(p); break; else q=p; p=p-next; if(p=NULL)printf(nt查无此航班n); return head;/*主函数*/void main() NOD *head;char fnum10;int choise;printf(nt欢迎光临航班查询系统:);scanf(%s,fnum);head=load(fnum);while(1) printf(ntt 航班信息检索与查询n); printf(tt*n); printf(tt 1.航班号查找n); printf(tt 2.起点站查找n); printf(tt 3.终点站查找n); printf(tt 4.起飞时间查找n); printf(tt 5.到达时间查找n); printf(tt 6.航班号删除n); printf(tt 7.增加新航班n); printf(tt 8.显示所有航班n); printf(tt 9.存盘并退出n); printf(nt请选择1-9:); scanf(%d,&choise); switch(choise) case 1:finda(head);break;