关于C++中出现Debug Error!的问题，详情请看下面，各位高手帮帮忙！

错误：
Debug Error!program:C:\Documents and Administrator\桌面\额\Debug\Cpp1.exe
abnomal program termination
(Press Retry to debug the application)
源代码：

#include<iostream.h>
#include<string>
#include<iomanip.h>
#include<fstream>

using namespace std;

struct course
{
char cNo[10];//课程号
char cName[20];//课程名
char cSchoolroom[20];//课室
char cTeacher[20];//任课教师
int cTime;//学时
int cCredit;//学分

};
struct Course
{
course curriculum;
Course *next;
Course(){next=NULL;}
};

class Subject
{
Course *head;//头指针
Course *p;//当前指针
public:
Subject(){head=NULL;p=NULL;}
void Add();//录入新课程信息
void Delete();//删除不开课程
int Search(char d[]);//根据课程号寻找课程，返回1或0
void Show();//打印所有课程
//void ReadFile();//从文件中读出数据信息
void WriteFile();//向文件中写入信息
//void SelectCourse();//选课
};

void Subject::Add()
{
cout<<"录入几门课程信息：";
int n;
cin>>n;
head=new Course;
head->next=NULL;
Course *s;
s=head;
for(int i=0;i<n;i++)
{
p=new Course;
cout<<"\t输入课程号：";
cin>>p->curriculum.cNo;
if(Search(p->curriculum.cNo)==0)
{
cout<<"\t输入课程名：";
cin>>p->curriculum.cName;
cout<<"\t输入课时：";
cin>>p->curriculum.cTime;
cout<<"\t输入任课老师：";
cin>>p->curriculum.cTeacher;
cout<<"\t输入授课教室：";
cin>>p->curriculum.cSchoolroom;
cout<<"\t输入课程学分：";
cin>>p->curriculum.cCredit;
}
else{cout<<"\n\t已经存在该课程，不能重复添加！";}
s->next=p;
s=p;
}
s->next=NULL;
}

int Subject::Search(char d[])
{Course *f=head->next;
while(f!=NULL)
{
if(strcmp(f->curriculum.cNo,d)==0)break;
f=f->next;
}
if(f==NULL)
return 0;
else return 1;
}

void Subject::Delete()
{char t[10];
Course *q1=head->next;
Course *q2=q1->next;
cout<<"\t请问要删除课程号：";
cin>>t;
int n=0;
Course *s=head->next;
while(s!=NULL)
{
n++;
if(strcmp(s->curriculum.cNo,t))break;
s=s->next;
}
if(s==NULL)
cout<<"不存在该课程号！"<<endl;
else
for(int i=1;i<n-1;i++)
{
q1=q2;
q2=q2->next;
}
q1->next=q2->next;
cout<<"\t删除成功！"<<endl;
}

void Subject::Show()
{
Course* k=head->next;
while(k!=NULL)
{
cout<<setiosflags(ios::left)<<setw(10)<<k->curriculum.cNo
<<setw(35)<<k->curriculum.cName
<<setw(15)<<k->curriculum.cTeacher
<<setw(10)<<k->curriculum.cSchoolroom
<<setw(7)<<k->curriculum.cTime
<<setw(6)<<k->curriculum.cCredit<<endl;
k=k->next;
}

}

void Subject::WriteFile()
{
ofstream out;
Course *c=head->next;
out.open("e:\\课程信息表.txt",ios::binary|ios::app|ios::trunc);
if(!out)
{
cout<<"\t课程信息表.txt无法打开！";
abort();
}
else
while(c)
{
out.write((char*)&c,sizeof(c));
c=c->next;
}
out.close();
}
void main()
{

Subject subject;
subject.Add();
subject.Delete();

subject.Show();
subject.WriteFile();
}

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