C语言课设-航班订票系统-源码+文件
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http://t.csdnimg.cn/7xfIh源码+文件 #include<stdio.h>#include<string.h>#include<math.h>#include<stdlib.h>#define SIZE 20#define NUM 100typedef struct{char flightNum[SIZE];char take_off_Time[SIZE];char land_Time[SIZE];char take_off_City[SIZE];char land_City[SIZE];float pre_Price;float discount;float now_Price;int tickets;}FLIGHT,*PFLIGHT;typedef struct{char flightNum[SIZE];char take_off_Time[SIZE];char land_Time[SIZE];char take_off_City[SIZE];char land_City[SIZE];float price;}ORDERFLIGHT,*PORDERFLIGHT;typedef struct{char orderId[SIZE];char name[SIZE];char userId[SIZE];ORDERFLIGHT order;}ORDER,*PORDER;void input_flight(){FILE* fp;int i=0;int n;FLIGHT f[NUM];if((fp=fopen("./flight/flight.dat","ab"))==NULL){printf("无法打开文件!系统将返回上一级菜单!\n");return;}printf("请输入预计要录入的航班数: ");scanf("%d",&n);printf("请按照顺序(航班号,起飞时间,降落时间,起飞城市,降落城市,原票价,折扣,剩余票数)依次输入相应信息;\n其中起飞和降落时间请按照形如\"2020-01-01/12:45\"的形式输入,若无折扣请输入1.0:\n");while(1){scanf("%s%s%s%s%s%f%f%d",f[i].flightNum,f[i].take_off_Time,f[i].land_Time,f[i].take_off_City,f[i].land_City,&f[i].pre_Price,&f[i].discount,&f[i].tickets);f[i].now_Price=f[i].pre_Price*f[i].discount;if((fwrite(&f[i],sizeof(FLIGHT),1,fp))!=1)printf("信息写入文件错误!\n");i++;if(i==n){int x; printf("已达到您预计要录入的数量,是否想要继续录入,若需要请输入要继续录入的数量,若需要退出请按0: ");scanf("%d",&x);if(x==0)break;else {printf("请输入:\n");n+=x;}}}printf("航班信息录入完成!\n");printf("\n");fclose(fp);}void check_flight(){FLIGHT f[NUM];FILE* fp;int i=0;if((fp=fopen("./flight/flight.dat","rb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}printf("所有航班的信息如下所示:\n");printf("航班号 起飞时间 降落时间 起飞地 目的地 原价 折扣 现价 剩余票数\n");while(fread(&f[i],sizeof(FLIGHT),1,fp)) {printf("%-s %-s %-s %-8s %-s %8.2f %8.2f %8.2f %3d\n",f[i].flightNum,f[i].take_off_Time,f[i].land_Time,f[i].take_off_City,f[i].land_City,f[i].pre_Price,f[i].discount,f[i].now_Price,f[i].tickets);i++;}printf("\n");fclose(fp);}void change_flight(){FLIGHT f[NUM];ORDER o[NUM];FILE* fp1;FILE* fp2;FILE* op1;FILE* op2; char str[SIZE];char str1[SIZE];int i=0;int a=0;int x;int flag=0;if((fp1=fopen("./flight/flight.dat","rb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}while(fread(&f[i],sizeof(FLIGHT),1,fp1)) {i++;}if((op1=fopen("./flight/order.dat","rb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}while(fread(&o[a],sizeof(ORDER),1,op1)) {a++;}fclose(fp1);fclose(op1);printf("请输入需要修改航班的航班号: ");scanf("%s",str);for(int j=0;j<i;j++){if(strcmp(str,f[j].flightNum)==0){printf("已找到该航班:\n");printf("航班号 起飞时间 降落时间 起飞地 目的地 原价 折扣 现价 剩余票数\n");printf("%-s %-s %-s %-8s %-s %8.2f %8.2f %8.2f %3d\n",f[j].flightNum,f[j].take_off_Time,f[j].land_Time,f[j].take_off_City,f[j].land_City,f[j].pre_Price,f[j].discount,f[j].now_Price,f[j].tickets);printf("请重新输入该航班的信息;\n请按照(起飞时间,降落时间,起飞城市,降落城市,原票价,折扣,剩余票数)顺序依次输入相应信息;\n其中起飞和降落时间请按照形如\"2020-01-01/12:45\"的形式输入,若无折扣请输入1.0:\n");scanf("%s%s%s%s%f%f%d",f[j].take_off_Time,f[j].land_Time,f[j].take_off_City,f[j].land_City,&f[j].pre_Price,&f[j].discount,&f[j].tickets);f[j].now_Price=f[j].pre_Price*f[j].discount;x=j;flag=1;}}if(flag==0)printf("您所要修改的航班并不存在!\n");if((fp2=fopen("./flight/flight.dat","wb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}for(int j=0;j<i;j++){if((fwrite(&f[j],sizeof(FLIGHT),1,fp2))!=1)printf("信息写入文件错误!\n");}fclose(fp2);for(int b=0;b<a;b++){if(strcmp(str,o[b].order.flightNum)==0){strcpy(o[b].order.take_off_Time,f[x].take_off_Time);strcpy(o[b].order.land_Time,f[x].take_off_Time);strcpy(o[b].order.take_off_City,f[x].take_off_City);strcpy(o[b].order.land_City,f[x].land_City);strcpy(str1,f[x].flightNum);strcpy(o[b].orderId,strcat(str1,o[b].userId));o[b].order.price=f[x].now_Price;}}if((op2=fopen("./flight/order.dat","wb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}for(int j=0;j<a;j++){if((fwrite(&o[j],sizeof(ORDER),1,op2))!=1)printf("信息写入文件错误!\n");}fclose(op2);printf("\n");}void delete_flight(){FLIGHT f[NUM];ORDER o[NUM];FILE* fp1;FILE* fp2;FILE* op1;FILE* op2;char str[SIZE];int i=0;int j=0;int a=0;int b=0;int x;int flag=0;int c=0;if((fp1=fopen("./flight/flight.dat","rb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}while(fread(&f[i],sizeof(FLIGHT),1,fp1)) {i++;}if((op1=fopen("./flight/order.dat","rb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}while(fread(&o[a],sizeof(ORDER),1,op1)) {a++;}fclose(fp1);fclose(op1);printf("请输入需要删除航班的航班号:");scanf("%s",str);for(j=0;j<i;j++){if(strcmp(str,f[j].flightNum)==0){printf("已找到该航班:\n");printf("航班号 起飞时间 降落时间 起飞地 目的地 原价 折扣 现价 剩余票数\n");printf("%-s %-s %-s %-8s %-s %8.2f %8.2f %8.2f %3d\n",f[j].flightNum,f[j].take_off_Time,f[j].land_Time,f[j].take_off_City,f[j].land_City,f[j].pre_Price,f[j].discount,f[j].now_Price,f[j].tickets);printf("确认要删除吗?(1 删除/0 取消):");scanf("%d",&c);printf("\n");flag=1;x=j;}}if(flag==0)printf("您所要删除的航班并不存在!\n\n");if(c==1){if((fp2=fopen("./flight/flight.dat","wb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}for(int k=0;k<x;k++){if((fwrite(&f[k],sizeof(FLIGHT),1,fp2))!=1)printf("信息写入文件错误!\n");}for(int k=x+1;k<i;k++){if((fwrite(&f[k],sizeof(FLIGHT),1,fp2))!=1)printf("信息写入文件错误!\n");}printf("\n");fclose(fp2); }for(b=0;b<a;b++){if(strcmp(str,o[b].order.flightNum)==0){if(c==1){if((op2=fopen("./flight/order.dat","wb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}for(int k=0;x<b;k++){if((fwrite(&o[k],sizeof(ORDER),1,op2))!=1)printf("信息写入文件错误!\n");}for(int k=b+1;k<a;k++){if((fwrite(&o[k],sizeof(ORDER),1,op2))!=1)printf("信息写入文件错误!\n");}fclose(op2);}}}}void searchByFligtNum(){FLIGHT f[NUM];char str[SIZE];FILE* fp;int i=0;int flag=0;printf("请输入您想要查询的航班号: ");scanf("%s",str);if((fp=fopen("./flight/flight.dat","rb"))==NULL){printf("无法打开文件!系统将返回上一级!\n");return;}while(fread(&f[i],sizeof(FLIGHT),1,fp)){i++;}for(int j=0;j<i;j++){if(strcmp(str,f[j].flightNum)==0){printf("查询到相关信息,如下所示:\n");printf("航班号 起飞时间 降落时间 起飞地 目的地 原价 折扣 现价 剩余票数\n");printf("%-s %-s %-s %-8s %-s %8.2f %8.2f %8.2f %3d\n",f[j].flightNum,f[j].take_off_Time,f[j].land_Time,f[j].take_off_City,f[j].land_City,f[j].pre_Price,f[j].discount,f[j].now_Price,f[j].tickets);flag=1;}}if(flag==0)printf("您所要查询的航班并不存在!\n");printf("\n");fclose(fp);} void searchByAddr(){FLIGHT f[NUM];char str1[SIZE];char str2[SIZE];FILE* fp;int i=0;int flag=0;printf("请输入您想要