0x00DDD8F0 处(位于 test.exe 中)引发的异常: 0xC0000005: 写入位置 0x0000001E 时发生访问冲突。

Question

//设计一个person类，从键盘输入每个人的姓名、身份证号、年龄、地址等数据，并将每个人的信息保存在目录

//C:下的二进制文件person.dat中，然后将文件中的个人信息读出来，保存在vector类型的向量中并显示出来

//Eg9-8.cpp

#include"iostream"

#include"vector"

#include"string"

#include"fstream"

#include"stdlib.h"

using namespace std;

class Person {

public:

Person() {};

Person(string _name, string _id, string _age, string _addr){

m_strName = _name;

m_strId = _id;

m_strAge = _age;

m_strAddr = _addr;

}

void display() {

cout << m_strName << "\t" << m_strId << "\t" << m_strAge << "\t" << m_strAddr << endl;

}

private:

string m_strName;

string m_strId;

string m_strAge;

string m_strAddr;

};

void main() {

vector<Person>p;

vector<Person>::iterator q;

char ch;

ofstream out("c:\\person.dat", ios::out | ios::app | ios::binary);

string name;

string id;

string age;

string addr;

cout << "-----输入个人档案-----" << endl << endl;

do {

cout << "姓名:"; cin >> name;

cout << "身份证号:"; cin >> id;

cout << "年龄:"; cin >> age;

cout << "地址:"; cin >> addr;

Person s1(name, id, age, addr); //调用构造函数创建一个对象s1

out.write((char*)&s1,sizeof(s1));//函数write()一次插入n个字节到输出流中，即一次写入n字节内容到文件中

cout << "Enter another person (y/n)?"; cin >> ch;

} while (ch == 'y');

out.close();

fstream in("c:\\person.dat", ios::in | ios::binary);

Person s2;

/*do {

in.read((char*)&s2, sizeof(s2));

p.push_back(s2);

} while (!in.eof());*/

in.read((char*)&s2,sizeof(s2));

while (!in.eof())

{

p.push_back(s2);

in.read((char*)&s2, sizeof(s2));

}

in.close();

cout << "/n-----输入个人档案-----" << endl << endl;

//q = p.begin(),

for(q = p.begin(); q != p.end(); q++)

{

(*q).display();

}

system("pause");

}