65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
#include <fstream>
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#include <iostream>
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//向量是一个能够存放任意类型的动态数组
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#include <cstring>
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#include <vector>
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using namespace std;
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class Person {
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private:
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char name[20];
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char id[18];
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int age;
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char addr[20];
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public:
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Person() {}
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Person(char *n, char *pid, int Age, char *Addr) {
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strcpy(name, n);
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strcpy(id, pid);
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age = Age;
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strcpy(addr, Addr);
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}
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void display() {
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cout << name << "\t" << id << "\t" << age << "\t" << addr << endl;
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}
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};
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int main(int argc, char const *argv[]) {
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vector<Person> v;
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vector<Person>::iterator
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pos; //声明一个迭代器，来访问vector容器，作用：遍历或者指向vector容器的元素
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char ch;
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ofstream out("d:/person.dat", ios::out | ios::app | ios::binary);
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char Name[20], ID[18], Addr[20];
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int Age;
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cout << "------输入个人档案------" << endl << endl;
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do {
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cout << "姓名： ";
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cin >> Name;
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cout << "身份证号： ";
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cin >> ID;
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cout << "年龄： ";
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cin >> Age;
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cout << "地址： ";
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cin >> Addr;
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Person per(Name, ID, Age, Addr);
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out.write((char *)&per, sizeof(per));
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cout << "Enter another Person(y/n)?";
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cin >> ch;
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} while (ch == 'y');
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out.close();
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ifstream in("d:/person.dat", ios::in | ios::binary); // L9
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Person s;
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in.read((char *)&s, sizeof(s));
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while (!in.eof()) {
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v.push_back(s);
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in.read((char *)&s, sizeof(s));
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}
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cout << "\n---------从文件中读出的数据--------" << endl << endl; // L15
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pos = v.begin();
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for (pos = v.begin(); pos != v.end(); pos++)
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(*pos).display();
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return 0;
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}
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