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分享程序为什么单步执行没有问题，直接运行就会出现问题
#include<iostream>
#include<iomanip>
#include <stdlib.h>
using namespace std;
class Book
{
public:
int book_id;
char book_name[20];
char writer[20];
int now_number;
int sum_number;
Book();
};
class Member
{
public:
int ID;
int borrow_number;
int borrow_book_id;
int time;
Member()
{
borrow_book_id=0;
time=0;
ID=0;
borrow_number=0;
}
};
class Node
{
public:
int data;
Node* next;
Node(int _data)
{
data=_data;
next = NULL;
}
};
class Index
{
private:
Node* head;
public:
Index()
{
head = NULL;
}
void insert(Node *node, int index)
{
if (head == NULL)
{
head = node;
return;
}
if (index == 0)
{
node->next = head;
head = node;
return;
}
Node *current_node = head;
int count = 0;
while (current_node->next != NULL && count < index - 1)
{
current_node = current_node->next;
count++;
}
if (count == index - 1)
{
node->next = current_node->next;
current_node->next = node;
}
}
void output()
{
if (head == NULL)
{
return;
}
Node *current_node = head;
while (current_node != NULL)
{
cout << current_node->data <<endl;
current_node = current_node->next;
}
cout << endl;
}
void delete_node(int index)
{
if(head==NULL)
{
return ;
}
Node *current_node=head;
int count=0;
if(index==0)
{
head=head->next;
delete current_node;
return ;
}
while(current_node->next!=NULL&&count<index-1)
{
current_node=current_node->next;
count++;
}
if(count==index-1 &¤t_node->next!=NULL)
{
Node *delete_node=current_node->next;
current_node->next=delete_node->next;
delete delete_node;
}
}
int serch(int index)
{
if (head == NULL)
{
return 0;
}
Node *current_node = head;
while(current_node->data!=index && current_node->next != NULL)
{
current_node=current_node->next;
}
if(current_node->data==index)
{
return 1;
}
else
{
return 0;
}
}
};
Book::Book()
{
book_id=0;
now_number=0;
sum_number=0;
}
void add(Book *str_book,Index *str_index)
{
system("cls");
int new_id,count=0;
cout<<"请输入图书的书号"<<endl;
cin>>new_id;
while(str_book->book_id==new_id||str_book->book_id==0)
{
str_book++;
count++;
}
if(str_book->book_id==new_id)
{
cout<<"此图书存在，请输入增加库存量"<<endl;
int i;
cin>>i;
str_book->sum_number=i;
}
else
{
int i;
str_book->book_id=new_id;
cout<<"请输入图书书名"<<endl;
cin.ignore(1024,'\n');
cin.getline(str_book->book_name,20);
cout<<"作者姓名"<<endl;
cin.getline(str_book->writer,20);
cout<<"请输入采购量"<<endl;
cin>>i;
str_book->now_number=i;
str_book->sum_number=i;
cout<<"收录完毕"<<endl;
cout<<"请按回车键确认"<<endl;
getchar();
}
}
void serch(Book *str_book)
{
system("cls");
int x;
cout<<"请输入图书书号"<<endl;
cin>>x;
while(str_book->book_id==x||str_book->book_id==0)
{
str_book++;
}
if(str_book==0)
{
cout<<"对不起，没有此图书"<<endl;
}
else
{
cout<<"图书书号："<<str_book->book_id<<endl;
cout<<"图书书名："<<str_book->book_name<<endl;
cout<<"作者姓名："<<str_book->writer<<endl;
cout<<"现存量："<<str_book->now_number<<endl;
cout<<"库存量："<<str_book->sum_number<<endl;
}
getchar();
}
void borrow(Book *str_book,Member *str_member)
{
system("cls");
int x,y;
cout<<"请输入借书会员号："<<endl;
cin>>y;
while(str_member->ID==y||str_member->ID==0)
{
str_member++;
}
if(str_member->ID==0)
{
cout<<"对不起，没有此会员"<<endl;
}
else
{
cout<<"请输入所借图书书号"<<endl;
cin>>x;
while(str_book->book_id==x||str_book->book_id==0)
{
str_book++;
}
if(str_book->book_id==0)
{
cout<<"对不起，没有此图书"<<endl;
}
else
{
if(str_book->now_number==0)
{
cout<<"图书库存为0，无法借阅"<<endl;
}
else
{
int y;
cout<<"请输入借书时间："<<endl;
cin>>y;
str_member->time=y;
str_book->now_number--;
str_member->borrow_number++;
str_member->borrow_book_id=x;
cout<<"借书成功"<<endl;
}
}
}
getchar();
}
void get(Book *str_book,Member *str_member)
{
system("cls");
int x,y;
cout<<"请输入归还图书会员号："<<endl;
cin>>y;
while(str_member->ID==y||str_member->ID==0)
{
str_member++;
}
if(str_member->ID==0)
{
cout<<"对不起，没有此会员"<<endl;
}
else
{
cout<<"请输入归还图书书号："<<endl;
cin>>x;
while(str_book->book_id==x||str_book->book_id==0)
{
str_book++;
}
if(str_book->book_id==0)
{
cout<<"对不起，没有此图书"<<endl;
}
else
{
str_book->now_number++;
str_member->borrow_number--;
str_member->time=0;
str_member->borrow_book_id=0;
cout<<"还书成功"<<endl;
}
}
getchar();
}
void drop(Book *str_book,Index *str_index)
{
system("cls");
int x,count=0;
cout<<"请输入删除图书书号："<<endl;
cin>>x;
while(str_book->book_id==x||str_book->book_id==0)
{
str_book++;
count++;
}
if(str_book->book_id==0)
{
cout<<"对不起，没有此图书"<<endl;
}
else
{
while(str_book->book_id==0)
{
str_book[count]=str_book[count+1];
count++;
cout<<"删除成功"<<endl;
}
}
getchar();
}
void add_member(Member *str_member)
{
system("cls");
while(str_member->ID==0)
{
str_member++;
}
cout<<"请输入会员ID："<<endl;
cin>>str_member->ID;
cout<<"增加成功"<<endl;
getchar();
}
void serch_member(Member *str_member)
{
system("cls");
int y;
cout<<"请输入查询会员号："<<endl;
cin>>y;
while(str_member->ID==y||str_member->ID==0)
{
str_member++;
}
if(str_member->ID==0)
{
cout<<"对不起，没有此会员"<<endl;
}
else
{
cout<<"会员ID为："<<str_member->ID<<endl;
cout<<"会员所借图书册数为："<<str_member->borrow_number<<endl;
}
getchar();
}
void drop_member(Member *str_member)
{
system("cls");
int y,count=0;
cout<<"请输入删除会员号："<<endl;
cin>>y;
while(str_member->ID==y||str_member->ID==0)
{
str_member++;
count++;
}
if(str_member->ID==0)
{
cout<<"对不起，没有此会员"<<endl;
}
else
{
while(str_member->ID==0)
{
str_member[count]=str_member[count+1];
count++;
cout<<"删除成功"<<endl;
}
}
getchar();
}
void borrow_book(Book *str_book,Member *str_member)
{
system("cls");
while(str_member->borrow_number==0)
{
cout<<'\t'<<setw(8)<<"会员ID"<<'\t'<<setw(8)<<"所借图书ID"<<'\t'<<setw(8)<<"借书期限"<<endl;
cout<<'\t'<<setw(8)<<str_member->ID<<'\t'<<setw(8)<<str_member->borrow_book_id<<'\t'<<setw(8)<<str_member->time;
str_member++;
}
getchar();
}
void put()
{
system("cls");
cout<<'\t'<<"********************欢迎进入图书馆借阅系统********************"<<endl;
cout<<'\t'<<"******************** 请选择所需要的功能 ********************"<<endl;
cout<<'\t'<<"*****1 增加图书 2 查询图书******"<<endl;
cout<<'\t'<<"*****3 图书借阅 4 归还图书******"<<endl;
cout<<'\t'<<"*****5 删除图书 6 增加会员******"<<endl;
cout<<'\t'<<"*****7 查询会员 8 删除会员******"<<endl;
cout<<'\t'<<"*****9 借书信息 0 退出系统******"<<endl;
cout<<'\t'<<"*************************************************************"<<endl;
}
int main()
{
int x;
Member *str_member=new Member[100];
Book *str_book=new Book[100];
Index *str_index=new Index;
while(1)
{
put();
cin>>x;
switch(x)
{
case 1:add(str_book,str_index) ;break;
case 2:serch(str_book); break;
case 3:borrow(str_book,str_member); break;
case 4:get(str_book,str_member); break;
case 5:drop(str_book,str_index); break;
case 6:add_member(str_member); break;
case 7:serch_member(str_member);break;
case 8:drop_member(str_member);break;
case 9:borrow_book(str_book,str_member);break;
}
}
}以上是完整程序，每次进入主函数中while循环后，子程序就很快结束，直接回到循环
...全文
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未狂 2015-12-24
- 打赏
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单步调试没问题，直接运行出错
有很大可能就是索引越界，前几步都正常，推进大了，代码逻辑出错，指针越界、数组越界都有可能
seanking1987 2015-12-23
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LZ会单步跟踪，到关键步骤打印一下值不就找到错误所在了？
lm_whales 2015-12-23
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- 举报
插入算法错误，书被你插入到数组外部了
jackydi 2015-12-23
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程序也太长了。
赵4老师 2015-12-23
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void add_member(Member *str_member)
{
system("cls");
Member *s=str_member;
while(s->ID==0)
{
s++;
}
cout<<"请输入会员ID："<<endl;
cin>>s->ID;
cout<<"增加成功"<<endl;
Sleep(2000);
}
马凌翔 2015-12-22
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- 举报
目前好了，我发现是因子函数中while的判断条件错误了，已经改正如下
#include<iostream>
#include<iomanip>
#include <stdlib.h>
#include <windows.h>
using namespace std;
class Book
{
public:
int book_id;
char book_name[20];
char writer[20];
int now_number;
int sum_number;
Book();
};
class Member
{
public:
int ID;
int borrow_number;
int borrow_book_id;
int time;
Member()
{
borrow_book_id=0;
time=0;
ID=0;
borrow_number=0;
}
};
class Node
{
public:
int data;
Node* next;
Node(int _data)
{
data=_data;
next = NULL;
}
};
class Index
{
private:
Node* head;
public:
Index()
{
head = NULL;
}
void insert(Node *node, int index)
{
if (head == NULL)
{
head = node;
return;
}
if (index == 0)
{
node->next = head;
head = node;
return;
}
Node *current_node = head;
int count = 0;
while (current_node->next != NULL && count < index - 1)
{
current_node = current_node->next;
count++;
}
if (count == index - 1)
{
node->next = current_node->next;
current_node->next = node;
}
}
void output()
{
if (head == NULL)
{
return;
}
Node *current_node = head;
while (current_node != NULL)
{
cout << current_node->data <<endl;
current_node = current_node->next;
}
cout << endl;
}
void delete_node(int index)
{
if(head==NULL)
{
return ;
}
Node *current_node=head;
int count=0;
if(index==0)
{
head=head->next;
delete current_node;
return ;
}
while(current_node->next!=NULL&&count<index-1)
{
current_node=current_node->next;
count++;
}
if(count==index-1 &¤t_node->next!=NULL)
{
Node *delete_node=current_node->next;
current_node->next=delete_node->next;
delete delete_node;
}
}
int serch(int index)
{
if (head == NULL)
{
return 0;
}
Node *current_node = head;
while(current_node->data!=index && current_node->next != NULL)
{
current_node=current_node->next;
}
if(current_node->data==index)
{
return 1;
}
else
{
return 0;
}
}
};
Book::Book()
{
book_id=0;
now_number=0;
sum_number=0;
}
void add(Book *str_book,Index *str_index)
{
system("cls");
int new_id,count=0;
cout<<"请输入图书的书号"<<endl;
cin>>new_id;
while(str_book->book_id!=new_id&&str_book->book_id==0)
{
str_book++;
count++;
}
if(str_book->book_id==new_id)
{
cout<<"此图书存在，请输入增加库存量"<<endl;
int i;
cin>>i;
str_book->sum_number=i;
}
else
{
int i;
str_book->book_id=new_id;
cout<<"请输入图书书名"<<endl;
cin.ignore(1024,'\n');
cin.getline(str_book->book_name,20);
cout<<"作者姓名"<<endl;
cin.getline(str_book->writer,20);
cout<<"请输入采购量"<<endl;
cin>>i;
str_book->now_number=i;
str_book->sum_number=i;
cout<<"收录完毕"<<endl;
cout<<"回到主程序"<<endl;
Sleep(2000);
}
}
void serch(Book *str_book)
{
system("cls");
int x;
cout<<"请输入图书书号"<<endl;
cin>>x;
while(str_book->book_id!=x&&str_book->book_id!=0)
{
str_book++;
}
if(str_book->book_id==0)
{
cout<<"对不起，没有此图书"<<endl;
}
else
{
cout<<"图书书号："<<str_book->book_id<<endl;
cout<<"图书书名："<<str_book->book_name<<endl;
cout<<"作者姓名："<<str_book->writer<<endl;
cout<<"现存量："<<str_book->now_number<<endl;
cout<<"库存量："<<str_book->sum_number<<endl;
}
Sleep(2000);
}
void borrow(Book *str_book,Member *str_member)
{
system("cls");
int x,y;
cout<<"请输入借书会员号："<<endl;
cin>>y;
while(str_member->ID!=y&&str_member->ID!=0)
{
str_member++;
}
if(str_member->ID==0)
{
cout<<"对不起，没有此会员"<<endl;
}
else
{
cout<<"请输入所借图书书号"<<endl;
cin>>x;
while(str_book->book_id!=y&&str_book->book_id!=0)
{
str_book++;
}
if(str_book->book_id==0)
{
cout<<"对不起，没有此图书"<<endl;
}
else
{
if(str_book->now_number==0)
{
cout<<"图书库存为0，无法借阅"<<endl;
}
else
{
int y;
cout<<"请输入借书时间："<<endl;
cin>>y;
str_member->time=y;
str_book->now_number--;
str_member->borrow_number++;
str_member->borrow_book_id=x;
cout<<"借书成功"<<endl;
}
}
}
Sleep(2000);
}
void get(Book *str_book,Member *str_member)
{
system("cls");
int x,y;
cout<<"请输入归还图书会员号："<<endl;
cin>>y;
while(str_member->ID!=y&&str_member->ID!=0)
{
str_member++;
}
if(str_member->ID==0)
{
cout<<"对不起，没有此会员"<<endl;
}
else
{
cout<<"请输入归还图书书号："<<endl;
cin>>x;
while(str_book->book_id!=y&&str_book->book_id!=0)
{
str_book++;
}
if(str_book->book_id==0)
{
cout<<"对不起，没有此图书"<<endl;
}
else
{
str_book->now_number++;
str_member->borrow_number--;
str_member->time=0;
str_member->borrow_book_id=0;
cout<<"还书成功"<<endl;
}
}
Sleep(2000);
}
void drop(Book *str_book,Index *str_index)
{
system("cls");
int x,count=0;
cout<<"请输入删除图书书号："<<endl;
cin>>x;
while(str_book->book_id!=x&&str_book->book_id!=0)
{
str_book++;
count++;
}
if(str_book->book_id==0)
{
cout<<"对不起，没有此图书"<<endl;
}
else
{
while(str_book->book_id==0)
{
str_book[count]=str_book[count+1];
count++;
cout<<"删除成功"<<endl;
}
}
Sleep(2000);
}
void add_member(Member *str_member)
{
system("cls");
while(str_member->ID==0)
{
str_member++;
}
cout<<"请输入会员ID："<<endl;
cin>>str_member->ID;
cout<<"增加成功"<<endl;
Sleep(2000);
}
void serch_member(Member *str_member)
{
system("cls");
int y;
cout<<"请输入查询会员号："<<endl;
cin>>y;
while(str_member->ID!=y&&str_member->ID!=0)
{
str_member++;
cout<<str_member->ID<<endl;
}
if(str_member->ID==0)
{
cout<<"对不起，没有此会员"<<endl;
}
else
{
cout<<"会员ID为："<<str_member->ID<<endl;
cout<<"会员所借图书册数为："<<str_member->borrow_number<<endl;
}
Sleep(2000);
}
void drop_member(Member *str_member)
{
system("cls");
int y,count=0;
cout<<"请输入删除会员号："<<endl;
cin>>y;
while(str_member->ID==y&&str_member->ID==0)
{
str_member++;
count++;
}
if(str_member->ID==0)
{
cout<<"对不起，没有此会员"<<endl;
}
else
{
while(str_member->ID==0)
{
str_member[count]=str_member[count+1];
count++;
cout<<"删除成功"<<endl;
}
}
Sleep(2000);
}
void borrow_book(Book *str_book,Member *str_member)
{
system("cls");
while(str_member->borrow_number!=0)
{
cout<<'\t'<<setw(8)<<"会员ID"<<'\t'<<setw(8)<<"所借图书ID"<<'\t'<<setw(8)<<"借书期限"<<endl;
cout<<'\t'<<setw(8)<<str_member->ID<<'\t'<<setw(8)<<str_member->borrow_book_id<<'\t'<<setw(8)<<str_member->time;
str_member++;
}
Sleep(2000);
}
void put()
{
system("cls");
cout<<'\t'<<"********************欢迎进入图书馆借阅系统********************"<<endl;
cout<<'\t'<<"******************** 请选择所需要的功能 ********************"<<endl;
cout<<'\t'<<"*****1 增加图书 2 查询图书******"<<endl;
cout<<'\t'<<"*****3 图书借阅 4 归还图书******"<<endl;
cout<<'\t'<<"*****5 删除图书 6 增加会员******"<<endl;
cout<<'\t'<<"*****7 查询会员 8 删除会员******"<<endl;
cout<<'\t'<<"*****9 借书信息 0 退出系统******"<<endl;
cout<<'\t'<<"*************************************************************"<<endl;
}
int main()
{
int x=1;
Member *str_member=new Member[10];
Book *str_book=new Book[10];
Index *str_index=new Index;
while(x!=0)
{
put();
cin>>x;
switch(x)
{
case 1:add(str_book,str_index) ;break;
case 2:serch(str_book); break;
case 3:borrow(str_book,str_member); break;
case 4:get(str_book,str_member); break;
case 5:drop(str_book,str_index); break;
case 6:add_member(str_member); break;
case 7:serch_member(str_member);break;
case 8:drop_member(str_member);break;
case 9:borrow_book(str_book,str_member);break;
}
}
return 0;
}
