崩溃了，求解。银行管理系统中的销户与修改密码，谢谢，一输入密码和账号，就退出，其他函数的没有附上，希望能帮忙，万分感谢，
程序代码：#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<conio.h>
#define N 1000
#define E 10
struct chuhu
{
char idnum[9]; //账户
char password[7]; //密码
char name[11]; //姓名
char idnumber[19]; //身份证
double cunkuan; //存款金额
struct chuhu *next;
}hu[N];
struct chuhu *deleta(struct chuhu *head);
int rrekey() ; //修改密码
void enter(); //登录函数
void menu(); //输出主菜单2
void display(); //显示账户余额
int A=0,key; //A为开户数
double jin;
char ch='y';
char password[7];
int k;
int flag=0;
struct chuhu*Readfile(struct chuhu*head)
{
struct chuhu *p=NULL,*pr=head;
FILE *fp;
if((fp=fopen("chuhu.txt","r"))==NULL)
{
printf("Failure to open yonghu,txt!\n");
exit(0);
}
while(!feof(fp))
{
p=(struct chuhu *)malloc(sizeof(struct chuhu));
fread(p,sizeof(struct chuhu),1,fp);
if(head==NULL)
{
head=p;
//pr=head;
}
else
{
while(pr->next!=NULL)
{
pr=pr->next;
}
pr->next=p;
//pr=p;
}
//pr->next=NULL;
p->next=NULL;
}
fclose(fp);
return head;
}
struct chuhu *saveTorfile(struct chuhu *head)
{
struct chuhu *p=head;
FILE *fp;
if((fp=fopen("chuhu.txt","w"))==NULL)
{
printf("Failure to open idcard.txt!\n");
exit(0);
}
else
{
while(p->next!=NULL)
{
fwrite(p,sizeof(struct chuhu),1,fp);
p=p->next;
}
}
fclose(fp);
return head;
}
void Displynode(struct chuhu *head)
{
struct chuhu *p=head;
while(p->next!=NULL)
{
printf("%10s%10s%20s%10s%15lf\n",p->idnum,p->name,p->idnumber,p->password,p->cunkuan);
p=p->next;
}
}
int main()//输出主菜单1
{
FILE *fkey = fopen("key.txt","r");
char c;
int t=0;
system("cls");
printf("\n\n");
printf(" 欢迎登陆银行管理系统\n");
printf(" 请确保您周边的取款环境安全\n");
printf(" 请勿相信周边粘贴的任何信息\n");
printf(" 如有任何疑问请你致电本行24小时服务热线\n");
printf(" 是否继续，继续请按Y,否按N\n");
fflush(stdin);//清除输入缓冲区
{
c=getchar();
getchar();
if(c=='N')
exit(0);
else if(c=='y'||c=='Y')
system("cls");
menu();
enter();
return 0;
}
}
void menu()//输出主菜单2
{
int a;
printf("\n");
printf(" ----------------------------------------\n");
printf(" ***! 请选择操作类型 !***\n");
printf(" ***$ 开户请按1 $***\n");
printf(" ***& 登录请按2 &***\n");
printf(" ***# 返回请按3 #***\n");
printf(" ----------------------------------------\n");
printf(" &&&&&^^^^ ");
fflush(stdin);
scanf("%d",&a);
switch(a)
{
case 1:
insert();
break;
case 2:
enter();
break;
case 3:
exit(0);
default:
printf("invalid operator !\n");
exit(0);
}
}
void enter()
{
int b;
struct chuhu *head=NULL;
do{
printf("\n\n");
printf(" **** 欢迎登录个人账户系统 ****\n");
printf(" !*!* 您可以选择以下操作 *!*\n");
printf(" **** 1.取款 2.存款 ****\n");
printf(" **** 3.转账 4. 销户 ****\n");
printf(" **** 5.挂失 6.查询余额 ****\n");
printf(" **** 7.修改密码 8.查询交易记录 ****\n");
printf(" **** 请选择您需要的服务 ****\n");
printf(" &&&&^^^^^");
fflush(stdin);
scanf("%d",&b);
switch(b)
{
case 1:
withdraw();
break;
case 2:
saving();
break;
case 3:
exit(0);
case 4:
system("cls");
head=Readfile(head);
head=deleta(head);
head=saveTorfile(head);
Displynode(head);
break;
case 5:
flag=guashi();
break;
case 6:
display();
break;
case 7:
rrekey();
break;
default:
printf("invalid operator !\n");
}
}while(1);
}
int rrekey() //修改密码
{
FILE *rekey=fopen("key.txt", "r" );
FILE *rkey=fopen("keynew.txt", "w" );
int mima,mima1,mima2,t;
system("cls");
printf("请输入原密码\n：");
scanf("%d",&mima);
fscanf(rekey,"%d",&key);
if(mima==key)
t=1;
system("cls");
for(;t!=1;)
{
printf("密码错误，请重新输入\n密码：");
scanf("%d",&mima);
if(mima==key)
t=1;
system("cls");
}
printf("请输入新密码：\n");
scanf("%d",&mima1); system("cls");
printf("请再次输入新密码：\n");
scanf("%d",&mima2);
system("cls");
if(mima1==mima2)
{
fprintf(rkey,"%d",mima1);
printf("修改成功\n");
system("pause");
}
else
{
printf("输入错误密码，终止修改密码操作");
system("pause");
}
system("cls");
fclose(rekey);
fclose(rkey);
system("del key.txt");
rename("keynew.txt","key.txt");
return 0;
}
struct chuhu *deleta(struct chuhu *head)
{
FILE *fp;
struct chuhu*p=head,*pr=head;
int w3=0,c=0;
int i,j;
char idnum[9];
char fnumb[9],keyword[7];
printf("请输入你的账号：");
scanf("%s",&fnumb);
for(i=0;i<=99;i++)
{
if(strcmp(fnumb,hu[i].idnum)==0 )
{
do
{
printf("\n\n\t\t*******请输入密码:< >\b\b\b\b\b\b\b");
scanf("%s",keyword);
if(strcmp(hu[i].password,keyword)!=0)
{
printf("\n\n\t\t********密码不正确，请重新输入!**********\n");
continue;
}
else
{
printf("\n\n\t\t**********密 码 正 确 !***********\n");
w3=1;
}
}
while(w3==0&&c<3);
while(p->idnum!=p->idnum||strcmp(p->password,password)!=0&&p->next!=NULL)
{
pr=p;
p=p->next;
}
if(p->idnum==idnum&&strcmp(p->password,password)==0)
{
if(p==head)
{
head=p->next;
}
else
{
pr->next=p->next;
}
free(p);
printf("删除成功！\n");
}
else
{
printf("没有您要删除的信息！,请返回上一级\n");
}
return head;
if((fp=fopen("chuhu.txt","w"))==NULL)
{
printf("打开文件失败!\n");
exit(0);
}
fwrite(hu,sizeof(hu),j,fp);
fclose(fp);
if((fp=fopen("idcard.txt","r"))==NULL)
{
printf("打开文件失败!\n");
exit(0);
}
j=2;
for(i=0;!feof(fp);i++)
{
fread(&hu[i],sizeof(hu),j,fp);
}
fclose(fp);
printf("%10d%10s%20s%10s%15lf%10d\n",
hu[i].idnum,hu[i].name,hu[i].idnumber,hu[i].password,hu[i].cunkuan);
}
else
{
}
}
}
[此贴子已经被作者于2017-3-20 21:03编辑过]
