那位大佬看这什么意思啊

[取什么名呢]

#include<iostream>
#include<fstream>
#include<stdlib.h>
#include<string>
using namespace std;
struct Meetinglist //定义类 Meetinglist
{
char name[10];
char number[50];
char department[40];
char address[40];
char time[15];
char moderator[20];
char recoder[15];
char presentmembers[300];
char digest[500];
};

void Add(fstream); //添加会议记录
void modification(fstream); //修改会议记录
void Delete(fstream); //删除会议记录
void Inquire(fstream); //按不同字段（会议编号）查询会议记录和浏览所有会议记录信息


int main()
{
int choice;
fstream field("F:\\aaa.dat", ios::in | ios::out | ios::binary);
if (!field)
{
cerr << "文件不能打开" << endl;
return 0;
}

while (choice)
{
cout << "**会议记录管理系统**\n";
cout << "1.添加会议记录:\n"
<< "2.修改会议记录:\n"
<< "3.删除会议记录:\n"
<< "4.按不同字段（会议编号）查询会议记录和浏览所有会议记录信息:\n"
<< "0.退出!\n";


do
{
cin >> choice;
} while (choice != 0 && choice != 1 && choice != 2 && choice != 3 && choice != 4 && choice != 5);

switch (choice)
{
case 1: Add(field); break;
case 2: modification(field); break;
case 3: Delete(field); break;
case 4: Inquire(field); break;
case 0: cout << "退出系统!\n"; return 0;
default:cout << "输入错误,请重新输入\n";
}
}

field.close();
}

void Add(fstream f)
{
Meetinglist list;

cout << "请输入会议名称:\n";
cin >> list.name;

cout << "请输入会议编号(3位):\n";
cin >> list.number;

cout << "請输入部门名称:\n";
cin >> list.department;

cout << "请输入会议地点:\n";
cin >> list.address;

cout << "请输入会议日期:\n";
cin >> list.time;

cout << "请输入会议主持人:\n";
cin >> list.moderator;

cout << "请输入会议记录人:\n";
cin >> list.recoder;

cout << "请输入出席人员:\n";
cin >> list.presentmembers;

cout << "请输入会议摘要:\n";
cin >> list.digest;

f.write((char*)& list, sizeof(Meetinglist));
}



void modification(fstream f)
{
Meetinglist List;
int a = 0;
int m = 0;
int choice;
char num[50];
char information[50];
f.seekg(0, ios::end);
long posEnd = (long)f.tellg();
f.seekg(0, ios::beg);


cout << "*请输入要修改会议记录的编号:*\n";
cin >> num;
do
{
f.read((char*)& List, sizeof(Meetinglist));
for (int i = 0; i < 50; i++)
{
if (num[i] == List.number[i])
m++;
if (num[i] != List.number[i])
{
m = 0;
break;
}
}
} while (m != 50 && posEnd != f.tellg());

if (m <= 50)
cout << "*找到这个会议*\n"
<< "1.修改会议名称:\n"
<< "2.修改会议编号:\n"
<< "3.修改部门名称:\n"
<< "4.修改会议地点:\n"
<< "5.修改会议日期:\n"
<< "6.修改会议主持人:\n"
<< "7.修改会议记录人:\n"
<< "8.修改出席人员:\n"
<< "9.修改会议摘要:\n"
<< "0.退出:\n";

if (m != 50)
{
cout << "*没有这个会议*!\n";
return;
}

while (choice)
{
do
{
cin >> choice;
} while (choice != 1 && choice != 2 && choice != 3 && choice != 4 && choice != 5 &&
choice != 6 && choice != 7 && choice != 8 && choice != 9 && choice != 0);

switch (choice)
{
case 1: cin >> information;
for (a = 0; a < sizeof(List.name); a++)
List.name[a] = information[a];
f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& List, sizeof(List));
return;
case 2: cin >> information;
for (a = 0; a < sizeof(List.number); a++)
List.number[a] = information[a];
f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& List, sizeof(List));
return;
case 3: cin >> information;
for (a = 0; a < sizeof(List.department); a++)
List.department[a] = information[a];
f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& List, sizeof(List));
return;
case 4: cin >> information;
for (a = 0; a < sizeof(List.address); a++)
List.address[a] = information[a];
f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& List, sizeof(List));
return;
case 5: cin >> information;
for (a = 0; a < sizeof(List.time); a++)
List.time[a] = information[a];
f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& List, sizeof(List));
return;
case 6: cin >> information;
for (a = 0; a < sizeof(List.moderator); a++)
List.moderator[a] = information[a];
f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& List, sizeof(List));
return;
case 7: cin >> information;
for (a = 0; a < sizeof(List.recoder); a++)
List.recoder[a] = information[a];
f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& List, sizeof(List));
return;
case 8: cin >> information;
for (a = 0; a < sizeof(List.presentmembers); a++)
List.presentmembers[a] = information[a];
f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& List, sizeof(List));
return;
case 9: cin >> information;
for (a = 0; a < sizeof(List.digest); a++)
List.digest[a] = information[a];
f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& List, sizeof(List));
return;
case 0: cout << "退出!\n"; return;
}

}


}

void Delete(fstream f)
{
Meetinglist list;
int m = 0;
char a;
char num[50];
char Fill[80] = { ' ' };
int i;
cout << "*请输入要删除的会议的编号Y/N:*" << endl;
cin >> num;
f.seekg(0, ios::end);
long posEnd =(long)f.tellg();
f.seekg(0, ios::beg);
do
{
f.read((char*)& list, sizeof(Meetinglist));
for (int i = 0; i < 50; i++)
{
if (num[i] == list.number[i])
m++;
if (num[i] != list.number[i])
{
m = 0;
break;
}
}
} while (m != 50 && posEnd != f.tellg());
if (m <= 50)
cout << "*找到这个会议*\n";

if (m != 50)
{
cout << "*没有这个会议!*\n";
return;
}
cout << "*确定删除这个会议?*" << endl;
do
{
cin >> a;
} while (a != 'Y' && a != 'N' && a != 'y' && a != 'n');

if (a == 'Y' || a == 'y')
{
for (int i = 0; i < sizeof(list.name); i++)
{
list.name[i] = Fill[i];
}
for (i = 0; i < sizeof(list.number); i++)
{
list.number[i] = Fill[i];
}
for (i = 0; i < sizeof(list.department); i++)
{
list.department[i] = Fill[i];
}
for (i = 0; i < sizeof(list.address); i++)
{
list.address[i] = Fill[i];
}
for (i = 0; i < sizeof(list.time); i++)
{
list.time[i] = Fill[i];
}
for (i = 0; i < sizeof(list.moderator); i++)
{
list.moderator[i] = Fill[i];
}
for (i = 0; i < sizeof(list.recoder); i++)
{
list.recoder[i] = Fill[i];
}
for (i = 0; i < sizeof(list.presentmembers); i++)
{
list.presentmembers[i] = Fill[i];
}
for (i = 0; i < sizeof(list.digest); i++)
{
list.digest[i] = Fill[i];
}

f.seekp(-long(sizeof(Meetinglist)), ios::cur);
f.write((char*)& list, sizeof(list));
return;
}
if (a == 'N' || a == 'n')

return;
}



void Inquire(fstream f)
{
int choice;
Meetinglist list;
char num[50];
f.seekg(0, ios::end);
long posEnd = (long)f.tellg();
cout << "**查询会议资料**\n";
while (1)
{
cout << "请输入操作选项\n"
<< "1:按会议编号查询\t"
<< "2:浏览\t"
<< "0:退出\n";
cin >> choice;
switch (choice)
{
case 1:
{f.seekg(0, ios::beg);
cout << "会议编号:\n";
cin >> num;
do
{
f.read((char*)& list, sizeof(Meetinglist));
} while (list.number != num && f.tellg() != posEnd);
if (list.number == num)
cout << list.number << '\t'
<< list.name << '\t'
<< list.department << '\t'
<< list.address << '\t'
<< list.time << '\t'
<< list.moderator << '\t'
<< list.recoder << '\t'
<< list.presentmembers << '\t'
<< list.digest << endl;
else
{
cout << "*会议编号输入错误*\n";
continue;
}
break;
}
case 2:
{f.seekg(0, ios::beg);
do
{
f.read((char*)& list, sizeof(Meetinglist));
cout << list.number << '\t'
<< list.name << '\t'
<< list.department << '\t'
<< list.address << '\t'
<< list.time << '\t'
<< list.moderator << '\t'
<< list.recoder << '\t'
<< list.presentmembers << '\t'
<< list.digest << endl;
} while (list.number != num && f.tellg() != posEnd);
break;
}
case 0: return;
}
}
}


1>C:\Users\Administrator\Desktop\课设\课设\课设.cpp(52,1): error C2280: “std::basic_fstream<char,std::char_traits<char>>::basic_fstream(const std::basic_fstream<char,std::char_traits<char>> &)”: 尝试引用已删除的函数

[qq_44501430]

抄的代码还拿出来看？

[636f6c696e]

抄的代码就别贴出来了

[赵4老师]

#include<iostream>
#include<fstream>
#include<stdlib.h>
#include<string.h>
#include<string>
using namespace std;
struct Meetinglist                                  //定义类  Meetinglist
{
    char name[10];
    char number[50];
    char department[40];
    char address[40];
    char time[15];
    char moderator[20];
    char recoder[15];
    char presentmembers[300];
    char digest[500];
};

void Add(fstream&);                                 //添加会议记录
void modification(fstream&);                          //修改会议记录
void Delete(fstream&);                               //删除会议记录
void Inquire(fstream&);                               //按不同字段（会议编号）查询会议记录和浏览所有会议记录信息


int main() {
    int choice;
    fstream field("F:\\aaa.dat", ios::in | ios::out | ios::binary);
    if (!field) {
        cerr << "文件不能打开" << endl;
        return 0;
    }

    while (true) {
        cout << "**会议记录管理系统**\n";
        cout << "1.添加会议记录:\n"
        << "2.修改会议记录:\n"
        << "3.删除会议记录:\n"
        << "4.按不同字段（会议编号）查询会议记录和浏览所有会议记录信息:\n"
        << "0.退出!\n";


        do {
            cin >> choice;
        } while (choice != 0 && choice != 1 && choice != 2 && choice != 3 && choice != 4 && choice != 5);

        switch (choice) {
        case 1: Add(field); break;
        case 2: modification(field); break;
        case 3: Delete(field); break;
        case 4: Inquire(field); break;
        case 0: cout << "退出系统!\n"; return 0;
        default:cout << "输入错误,请重新输入\n";
        }
    }

    field.close();
}

void Add(fstream &f) {
    Meetinglist list;

    cout << "请输入会议名称:\n";
    cin >> list.name;

    cout << "请输入会议编号(3位):\n";
    cin >> list.number;

    cout << "請输入部门名称:\n";
    cin >> list.department;

    cout << "请输入会议地点:\n";
    cin >> list.address;

    cout << "请输入会议日期:\n";
    cin >> list.time;

    cout << "请输入会议主持人:\n";
    cin >> list.moderator;

    cout << "请输入会议记录人:\n";
    cin >> list.recoder;

    cout << "请输入出席人员:\n";
    cin >> list.presentmembers;

    cout << "请输入会议摘要:\n";
    cin >> list.digest;

    f.write((char*)& list, sizeof(Meetinglist));
}



void modification(fstream &f) {
    Meetinglist List;
    int a = 0;
    int m = 0;
    int choice;
    char num[50];
    char information[50];
    f.seekg(0, ios::end);
    long posEnd = (long)f.tellg();
    f.seekg(0, ios::beg);


    cout << "*请输入要修改会议记录的编号:*\n";
    cin >> num;
    do {
        f.read((char*)& List, sizeof(Meetinglist));
        for (int i = 0; i < 50; i++) {
            if (num[i] == List.number[i])
                m++;
            if (num[i] != List.number[i]) {
                m = 0;
                break;
            }
        }
    } while (m != 50 && posEnd != f.tellg());

    if (m <= 50)
        cout << "*找到这个会议*\n"
        << "1.修改会议名称:\n"
        << "2.修改会议编号:\n"
        << "3.修改部门名称:\n"
        << "4.修改会议地点:\n"
        << "5.修改会议日期:\n"
        << "6.修改会议主持人:\n"
        << "7.修改会议记录人:\n"
        << "8.修改出席人员:\n"
        << "9.修改会议摘要:\n"
        << "0.退出:\n";

    if (m != 50) {
        cout << "*没有这个会议*!\n";
        return;
    }

    while (true) {
        do {
            cin >> choice;
        } while (choice != 1 && choice != 2 && choice != 3 && choice != 4 && choice != 5 &&
                 choice != 6 && choice != 7 && choice != 8 && choice != 9 && choice != 0);

        switch (choice) {
        case 1: cin >> information;
            for (a = 0; a < sizeof(List.name); a++)
                List.name[a] = information[a];
            f.seekp(-long(sizeof(Meetinglist)), ios::cur);
            f.write((char*)& List, sizeof(List));
            return;
        case 2: cin >> information;
            for (a = 0; a < sizeof(List.number); a++)
                List.number[a] = information[a];
            f.seekp(-long(sizeof(Meetinglist)), ios::cur);
            f.write((char*)& List, sizeof(List));
            return;
        case 3: cin >> information;
            for (a = 0; a < sizeof(List.department); a++)
                List.department[a] = information[a];
            f.seekp(-long(sizeof(Meetinglist)), ios::cur);
            f.write((char*)& List, sizeof(List));
            return;
        case 4: cin >> information;
            for (a = 0; a < sizeof(List.address); a++)
                List.address[a] = information[a];
            f.seekp(-long(sizeof(Meetinglist)), ios::cur);
            f.write((char*)& List, sizeof(List));
            return;
        case 5: cin >> information;
            for (a = 0; a < sizeof(List.time); a++)
                List.time[a] = information[a];
            f.seekp(-long(sizeof(Meetinglist)), ios::cur);
            f.write((char*)& List, sizeof(List));
            return;
        case 6: cin >> information;
            for (a = 0; a < sizeof(List.moderator); a++)
                List.moderator[a] = information[a];
            f.seekp(-long(sizeof(Meetinglist)), ios::cur);
            f.write((char*)& List, sizeof(List));
            return;
        case 7: cin >> information;
            for (a = 0; a < sizeof(List.recoder); a++)
                List.recoder[a] = information[a];
            f.seekp(-long(sizeof(Meetinglist)), ios::cur);
            f.write((char*)& List, sizeof(List));
            return;
        case 8: cin >> information;
            for (a = 0; a < sizeof(List.presentmembers); a++)
                List.presentmembers[a] = information[a];
            f.seekp(-long(sizeof(Meetinglist)), ios::cur);
            f.write((char*)& List, sizeof(List));
            return;
        case 9: cin >> information;
            for (a = 0; a < sizeof(List.digest); a++)
                List.digest[a] = information[a];
            f.seekp(-long(sizeof(Meetinglist)), ios::cur);
            f.write((char*)& List, sizeof(List));
            return;
        case 0: cout << "退出!\n"; return;
        }

    }


}

void Delete(fstream &f) {
    Meetinglist list;
    int m = 0;
    char a;
    char num[50];
    char Fill[80] = { ' ' };
    int i;
    cout << "*请输入要删除的会议的编号Y/N:*" << endl;
    cin >> num;
    f.seekg(0, ios::end);
    long posEnd =(long)f.tellg();
    f.seekg(0, ios::beg);
    do {
        f.read((char*)& list, sizeof(Meetinglist));
        for (int i = 0; i < 50; i++) {
            if (num[i] == list.number[i])
                m++;
            if (num[i] != list.number[i]) {
                m = 0;
                break;
            }
        }
    } while (m != 50 && posEnd != f.tellg());
    if (m <= 50)
        cout << "*找到这个会议*\n";

    if (m != 50) {
        cout << "*没有这个会议!*\n";
        return;
    }
    cout << "*确定删除这个会议?*" << endl;
    do {
        cin >> a;
    } while (a != 'Y' && a != 'N' && a != 'y' && a != 'n');

    if (a == 'Y' || a == 'y') {
        for (int i = 0; i < sizeof(list.name); i++) {
            list.name[i] = Fill[i];
        }
        for (i = 0; i < sizeof(list.number); i++) {
            list.number[i] = Fill[i];
        }
        for (i = 0; i < sizeof(list.department); i++) {
            list.department[i] = Fill[i];
        }
        for (i = 0; i < sizeof(list.address); i++) {
            list.address[i] = Fill[i];
        }
        for (i = 0; i < sizeof(list.time); i++) {
            list.time[i] = Fill[i];
        }
        for (i = 0; i < sizeof(list.moderator); i++) {
            list.moderator[i] = Fill[i];
        }
        for (i = 0; i < sizeof(list.recoder); i++) {
            list.recoder[i] = Fill[i];
        }
        for (i = 0; i < sizeof(list.presentmembers); i++) {
            list.presentmembers[i] = Fill[i];
        }
        for (i = 0; i < sizeof(list.digest); i++) {
            list.digest[i] = Fill[i];
        }

        f.seekp(-long(sizeof(Meetinglist)), ios::cur);
        f.write((char*)& list, sizeof(list));
        return;
    }
    if (a == 'N' || a == 'n')

        return;
}



void Inquire(fstream &f) {
    int choice;
    Meetinglist list;
    char num[50];
    f.seekg(0, ios::end);
    long posEnd = (long)f.tellg();
    cout << "**查询会议资料**\n";
    while (1) {
        cout << "请输入操作选项\n"
        << "1:按会议编号查询\t"
        << "2:浏览\t"
        << "0:退出\n";
        cin >> choice;
        switch (choice) {
        case 1: {
                f.seekg(0, ios::beg);
                cout << "会议编号:\n";
                cin >> num;
                do {
                    f.read((char*)& list, sizeof(Meetinglist));
                } while (strcmp(list.number,num) && (long)f.tellg() != posEnd);
                if (list.number == num)
                    cout << list.number << '\t'
                    << list.name << '\t'
                    << list.department << '\t'
                    << list.address << '\t'
                    << list.time << '\t'
                    << list.moderator << '\t'
                    << list.recoder << '\t'
                    << list.presentmembers << '\t'
                    << list.digest << endl;
                else {
                    cout << "*会议编号输入错误*\n";
                    continue;
                }
                break;
            }
        case 2: {
                f.seekg(0, ios::beg);
                do {
                    f.read((char*)& list, sizeof(Meetinglist));
                    cout << list.number << '\t'
                    << list.name << '\t'
                    << list.department << '\t'
                    << list.address << '\t'
                    << list.time << '\t'
                    << list.moderator << '\t'
                    << list.recoder << '\t'
                    << list.presentmembers << '\t'
                    << list.digest << endl;
                } while (strcmp(list.number,num) && (long)f.tellg() != posEnd);
                break;
            }
        case 0: return;
        }
    }
}

[棉猴]

VS2015编译通过

#include<iostream>
#include<fstream>
#include<stdlib.h>
#include<string>
using namespace std;
struct Meetinglist                                  //定义类  Meetinglist
{
	char name[10];
	char number[50];
	char department[40];
	char address[40];
	char time[15];
	char moderator[20];
	char recoder[15];
	char presentmembers[300];
	char digest[500];
};

void Add(fstream&);                                 //添加会议记录
void modification(fstream&);                          //修改会议记录                     
void Delete(fstream&);                               //删除会议记录
void Inquire(fstream&);                               //按不同字段（会议编号）查询会议记录和浏览所有会议记录信息


int main()
{
	int choice = 1;
	fstream field("F:\\aaa.dat", ios::in | ios::out | ios::binary);
	if (!field)
	{
		cerr << "文件不能打开" << endl;
		return 0;
	}

	while (choice)
	{
		cout << "**会议记录管理系统**\n";
		cout << "1.添加会议记录:\n"
			<< "2.修改会议记录:\n"
			<< "3.删除会议记录:\n"
			<< "4.按不同字段（会议编号）查询会议记录和浏览所有会议记录信息:\n"
			<< "0.退出!\n";


		do
		{
			cin >> choice;
		} while (choice != 0 && choice != 1 && choice != 2 && choice != 3 && choice != 4 && choice != 5);

		switch (choice)
		{
		case 1: Add(field); break;
		case 2: modification(field); break;
		case 3: Delete(field); break;
		case 4: Inquire(field); break;
		case 0: cout << "退出系统!\n"; return 0;
		default:cout << "输入错误,请重新输入\n";
		}
	}

	field.close();
}

void Add(fstream& f)
{
	Meetinglist list;

	cout << "请输入会议名称:\n";
	cin >> list.name;

	cout << "请输入会议编号(3位):\n";
	cin >> list.number;

	cout << "請输入部门名称:\n";
	cin >> list.department;

	cout << "请输入会议地点:\n";
	cin >> list.address;

	cout << "请输入会议日期:\n";
	cin >> list.time;

	cout << "请输入会议主持人:\n";
	cin >> list.moderator;

	cout << "请输入会议记录人:\n";
	cin >> list.recoder;

	cout << "请输入出席人员:\n";
	cin >> list.presentmembers;

	cout << "请输入会议摘要:\n";
	cin >> list.digest;

	f.write((char*)& list, sizeof(Meetinglist));
}



void modification(fstream& f)
{
	Meetinglist List;
	int a = 0;
	int m = 0;
	int choice =1;
	char num[50];
	char information[50];
	f.seekg(0, ios::end);
	long posEnd = (long)f.tellg();
	f.seekg(0, ios::beg);


	cout << "*请输入要修改会议记录的编号:*\n";
	cin >> num;
	do
	{
		f.read((char*)& List, sizeof(Meetinglist));
		for (int i = 0; i < 50; i++)
		{
			if (num[i] == List.number[i])
				m++;
			if (num[i] != List.number[i])
			{
				m = 0;
				break;
			}
		}
	} while (m != 50 && posEnd != f.tellg());

	if (m <= 50)
		cout << "*找到这个会议*\n"
		<< "1.修改会议名称:\n"
		<< "2.修改会议编号:\n"
		<< "3.修改部门名称:\n"
		<< "4.修改会议地点:\n"
		<< "5.修改会议日期:\n"
		<< "6.修改会议主持人:\n"
		<< "7.修改会议记录人:\n"
		<< "8.修改出席人员:\n"
		<< "9.修改会议摘要:\n"
		<< "0.退出:\n";

	if (m != 50)
	{
		cout << "*没有这个会议*!\n";
		return;
	}

	while (choice)
	{
		do
		{
			cin >> choice;
		} while (choice != 1 && choice != 2 && choice != 3 && choice != 4 && choice != 5 &&
			choice != 6 && choice != 7 && choice != 8 && choice != 9 && choice != 0);

		switch (choice)
		{
		case 1: cin >> information;
			for (a = 0; a < sizeof(List.name); a++)
				List.name[a] = information[a];
			f.seekp(-long(sizeof(Meetinglist)), ios::cur);
			f.write((char*)& List, sizeof(List));
			return;
		case 2: cin >> information;
			for (a = 0; a < sizeof(List.number); a++)
				List.number[a] = information[a];
			f.seekp(-long(sizeof(Meetinglist)), ios::cur);
			f.write((char*)& List, sizeof(List));
			return;
		case 3: cin >> information;
			for (a = 0; a < sizeof(List.department); a++)
				List.department[a] = information[a];
			f.seekp(-long(sizeof(Meetinglist)), ios::cur);
			f.write((char*)& List, sizeof(List));
			return;
		case 4: cin >> information;
			for (a = 0; a < sizeof(List.address); a++)
				List.address[a] = information[a];
			f.seekp(-long(sizeof(Meetinglist)), ios::cur);
			f.write((char*)& List, sizeof(List));
			return;
		case 5: cin >> information;
			for (a = 0; a < sizeof(List.time); a++)
				List.time[a] = information[a];
			f.seekp(-long(sizeof(Meetinglist)), ios::cur);
			f.write((char*)& List, sizeof(List));
			return;
		case 6: cin >> information;
			for (a = 0; a < sizeof(List.moderator); a++)
				List.moderator[a] = information[a];
			f.seekp(-long(sizeof(Meetinglist)), ios::cur);
			f.write((char*)& List, sizeof(List));
			return;
		case 7: cin >> information;
			for (a = 0; a < sizeof(List.recoder); a++)
				List.recoder[a] = information[a];
			f.seekp(-long(sizeof(Meetinglist)), ios::cur);
			f.write((char*)& List, sizeof(List));
			return;
		case 8: cin >> information;
			for (a = 0; a < sizeof(List.presentmembers); a++)
				List.presentmembers[a] = information[a];
			f.seekp(-long(sizeof(Meetinglist)), ios::cur);
			f.write((char*)& List, sizeof(List));
			return;
		case 9: cin >> information;
			for (a = 0; a < sizeof(List.digest); a++)
				List.digest[a] = information[a];
			f.seekp(-long(sizeof(Meetinglist)), ios::cur);
			f.write((char*)& List, sizeof(List));
			return;
		case 0: cout << "退出!\n"; return;
		}

	}


}

void Delete(fstream& f)
{
	Meetinglist list;
	int m = 0;
	char a;
	char num[50];
	char Fill[80] = { ' ' };
	int i;
	cout << "*请输入要删除的会议的编号Y/N:*" << endl;
	cin >> num;
	f.seekg(0, ios::end);
	long posEnd = (long)f.tellg();
	f.seekg(0, ios::beg);
	do
	{
		f.read((char*)& list, sizeof(Meetinglist));
		for (int i = 0; i < 50; i++)
		{
			if (num[i] == list.number[i])
				m++;
			if (num[i] != list.number[i])
			{
				m = 0;
				break;
			}
		}
	} while (m != 50 && posEnd != f.tellg());
	if (m <= 50)
		cout << "*找到这个会议*\n";

	if (m != 50)
	{
		cout << "*没有这个会议!*\n";
		return;
	}
	cout << "*确定删除这个会议?*" << endl;
	do
	{
		cin >> a;
	} while (a != 'Y' && a != 'N' && a != 'y' && a != 'n');

	if (a == 'Y' || a == 'y')
	{
		for (int i = 0; i < sizeof(list.name); i++)
		{
			list.name[i] = Fill[i];
		}
		for (i = 0; i < sizeof(list.number); i++)
		{
			list.number[i] = Fill[i];
		}
		for (i = 0; i < sizeof(list.department); i++)
		{
			list.department[i] = Fill[i];
		}
		for (i = 0; i < sizeof(list.address); i++)
		{
			list.address[i] = Fill[i];
		}
		for (i = 0; i < sizeof(list.time); i++)
		{
			list.time[i] = Fill[i];
		}
		for (i = 0; i < sizeof(list.moderator); i++)
		{
			list.moderator[i] = Fill[i];
		}
		for (i = 0; i < sizeof(list.recoder); i++)
		{
			list.recoder[i] = Fill[i];
		}
		for (i = 0; i < sizeof(list.presentmembers); i++)
		{
			list.presentmembers[i] = Fill[i];
		}
		for (i = 0; i < sizeof(list.digest); i++)
		{
			list.digest[i] = Fill[i];
		}

		f.seekp(-long(sizeof(Meetinglist)), ios::cur);
		f.write((char*)& list, sizeof(list));
		return;
	}
	if (a == 'N' || a == 'n')

		return;
}



void Inquire(fstream& f)
{
	int choice;
	Meetinglist list;
	char num[50];
	f.seekg(0, ios::end);
	long posEnd = (long)f.tellg();
	cout << "**查询会议资料**\n";
	while (1)
	{
		cout << "请输入操作选项\n"
			<< "1:按会议编号查询\t"
			<< "2:浏览\t"
			<< "0:退出\n";
		cin >> choice;
		switch (choice)
		{
		case 1:
		{f.seekg(0, ios::beg);
		cout << "会议编号:\n";
		cin >> num;
		do
		{
			f.read((char*)& list, sizeof(Meetinglist));
		} while (list.number != num && f.tellg() != (streampos)posEnd);
		if (list.number == num)
			cout << list.number << '\t'
			<< list.name << '\t'
			<< list.department << '\t'
			<< list.address << '\t'
			<< list.time << '\t'
			<< list.moderator << '\t'
			<< list.recoder << '\t'
			<< list.presentmembers << '\t'
			<< list.digest << endl;
		else
		{
			cout << "*会议编号输入错误*\n";
			continue;
		}
		break;
		}
		case 2:
		{f.seekg(0, ios::beg);
		do
		{
			f.read((char*)& list, sizeof(Meetinglist));
			cout << list.number << '\t'
				<< list.name << '\t'
				<< list.department << '\t'
				<< list.address << '\t'
				<< list.time << '\t'
				<< list.moderator << '\t'
				<< list.recoder << '\t'
				<< list.presentmembers << '\t'
				<< list.digest << endl;
		} while (list.number != num && f.tellg() != (streampos)posEnd);
		break;
		}
		case 0: return;
		}
	}
}

[棉猴]

请参考《VS2015中使用fstream类时 “error C2280尝试使用已删除的函数”的处理方法》
希望能够帮到你！