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我在做一個搜索方法，其中檢查2個ID只存儲整數。搜索方法失敗
首先，我有一個客戶數據庫。我按順序輸入姓名，姓氏，身份證和地址，然後將這些文件立即保存到文件中
當用戶輸入身份證時，會調用此搜索方法並檢查所有文件以查看是否該ID是唯一的或不是。如果不是，那麼它返回0，否則返回1
現在的問題是這樣的。 當我輸入ID時，無論它是否是唯一的，它一直在繼續，但是當它輸出我寫的內容時，對於NAME和SURNAME，它只顯示我在那裏存儲的第一條記錄（如卡住某種的緩衝區），ID和地址輸出正常。
文件也沒有更新的意思，保存文件沒有發生。 現在當我刪除這個方法時，附加功能正常工作，但我無法訪問ID的比較。
任何建議爲什麼發生這種情況？如果可能的話，任何想法如何我可以解決它？ 這就像每當我使用這種搜索方法時，整個文件從一開始就開始陷入困境。我試圖用布爾值使用該方法，但仍然無濟於事。當我嘗試使用它與布爾，而不是行「if（customerID（scanf（」％d「，& cCheck））== 1）」我做它== TRUE，它給我一個錯誤，輸出將 始終爲== FALSE，因爲數據不是NULL。
哦TRUE和FALSE是在我的情況下，有效的，因爲我有在COMMON.H
的代碼如下[張貼整個文件]一個typedef枚舉布爾： 涉及的方法[無效addCustomer （）]和[int customerID（int cCheck） 但我發佈全部，因爲其中一些互連。
編輯！ - 即使它們不是唯一的ID，它仍然被接受...
/*
* CustomerMainMenu.c
* Author: DodoSerebro
*
* This class will output the Customer's Main Menu and re-directs to the
* corresponding section
*
*/
#include<io.h>
#include<fcntl.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "..\Headers\common.h"
#include "..\Headers\customerManagement.h"
static FILE *cfp;
static customer c;
#define STRUCTSIZE sizeof (customer)
/** This is the Customers's Main Menu in which the various sections can be
* accessed from here
*/
boolean customerMainMenu()
{
int optionC;
clrscr();
copyright();
printf ("\n\n\n\n\t\t ************* Customer's Main Menu *************\n \n \n");
printf ("Press [1] to add a new Customer\n");
printf ("Press [2] to edit a Customer\n");
printf ("Press [3] to list all Customers\n");
printf ("Press [4] to Show a Customer's last Order\n");
printf ("Press [5] to go back to Main Menu\n\n\n");
if (scanf ("%d",&optionC) == 1)
{
switch (optionC)
{
case 1:
{
clrscr();
getchar();
addCustomer();
break;
}
case 2:
{
printf ("Edit a Customer\n");
break;
}
case 3:
{
clrscr();
listCustomers();
system ("PAUSE");
break;
}
case 4:
{
printf ("Customer's Last Order\n");
break;
}
case 5:
{
system ("PAUSE");
break;
}
default:
{
if (optionC != 1 || optionC != 2 || optionC != 3 || optionC != 4 || optionC !=5)
{
clrscr();
printf ("Invalid option!\n");
system ("PAUSE");
customerMainMenu();
}
break;
}
}
}
return TRUE;
}
/**
* This following method will append a customer to the
* database at the end of the file
*
* */
void addCustomer()
{
char ch;
copyright();
printf ("\n\n\n\n\t\t ************* Add Client **********\n \n \n");
if ((cfp = fopen ("customers.dat","a+b")) == NULL)
{
fputs("Can't open customers.dat file\n",stderr);
}
printf ("\tThis will add another customer to the the database\n");
printf ("\tPress 'Y' to confirm or 'N' to return to the Client Main Menu\n\tWITHOUT adding a customer\n");
ch = getchar();
if (ch == 'n' || ch == 'N')
{
customerMainMenu();
}
else if (ch == 'y' || ch == 'Y')
{
fflush(stdin);
clrscr();
printf ("\n\n\n\n\t\t ************* Add Client **********\n \n \n");
printf ("Please enter Name:\n");
while (scanf ("%s", c.name) == 0 || cCheck(c.name,100) == FALSE);
{
}
printf ("Please Enter Surname: \n");
while (scanf ("%s",c.surname) == 0 && cCheck (c.surname,100) == FALSE);
{
}
printf ("Please Enter ID Card, [NOTE! Only numbers are allowed!]\n");
int cCheck;
if (customerID(scanf ("%d",&cCheck)) == 1)
{
printf ("ID already Taken, Client exists!\n");
printf ("Do you want to enter another ID? 'Y' for Yes and 'N' to return to Main Menu\n");
ch = getchar();
if (ch == 'Y' || ch == 'y')
{
scanf ("%d",&cCheck);
customerID(cCheck);
c.ID = cCheck;
}
else
{
customerMainMenu();
}
}
else
{
c.ID = cCheck;
}
getchar();
printf ("Please Enter Address:\n");
gets(c.address);
fwrite (&c,STRUCTSIZE, 1, cfp);
printf ("For Testing purposes:\n");
printf (" %s\n %s\n %s\n %d\n", c.name, c.surname, c.address, c.ID);
askAnother();
}
else
{
printf ("\nInvalid choice! Either Y or N is accepted\n");
system ("PAUSE");
getchar();
clrscr();
addCustomer();
}
}
void listCustomers()
{
if ((cfp = fopen ("customers.dat","rb")) == NULL)
{
fputs("Can't open customers.dat file\n",stderr);
printf ("Returning to Customer Main Menu");
system ("PAUSE");
customerMainMenu();
}
rewind (cfp);
while (fread (&c,STRUCTSIZE,1,cfp)==1)
{
printf ("Customer: %s %s ID: %d\n", c.surname, c.name, c.ID);
}
fclose (cfp);
}
void askAnother()
{
printf ("Do you want to add another Customer?\n");
printf ("Enter 'Y' for yes and 'N' to return to the Main Menu\n");
char input;
input = getchar();
if (input == 'Y' || input == 'y')
{
getchar();
addCustomer();
}
else if (input == 'N'|| input == 'n')
{
fclose (cfp);
customerMainMenu();
}
else
{
printf ("Invalid Option! Only Y or N are allowed\n");
system ("PAUSE");
clrscr();
askAnother();
}
}
boolean cCheck(char *test, int max)
{
int x;
for (x =0; x<max; x++)
{
if (isdigit(test[x]))
{
return FALSE;
}
if (x==max)
{
return TRUE;
}
x++;
}
return TRUE;
}
/**
* This method will compare the ID passed from the ID of the customer to check
* whether it is exists or not. If it exists it will output 1 otherwise it
* will output -1. This will make sure that the Person's ID is unique
*
*/
int customerID (int cCheck)
{
rewind (cfp);
while (fread (&c,STRUCTSIZE,1,cfp)==1)
{
if (c.ID == cCheck)
{
return 1;
}
else
{
return 0;
}
}
return 1;
}
編輯！
上傳圖片展示了我的意思，如果我不清楚
（請注意如何姓名從這些輸入不同） HTTP：//s017.radikal.ru/i443/1212/c8 /1ea9bc56d980.jpg
下面顯示我有什麼文件中 （只有一個文件） HTTP：//s017.radikal.ru/i431/1212/49/2a0df6acf9ec.jpg
現在給我一個失敗的行號，不要指望我通讀這個爛攤子。 – 2012-12-20 22:40:29
145是它開始失敗.. 然後SearchMethod從273行開始 – DodoSerebro