小甲鱼C++视频，读写文件的课后作业
#include<iostream>#include <fstream>
#include<string>
using namespace std;
struct Fishoil {
public:
Fishoil();
string name;
string number;
char male;
void change_name();
void change_number();
void change_male();
void writein();
void buttony_n();
void button();
void button1();
void button2();
};
Fishoil::Fishoil() {
name = "伍东升";
number = "3140205306";
male = 'M';
}
void Fishoil::change_name() {
string new_name;
cout << "姓名：";
cin >>new_name;
name = new_name;
}
void Fishoil::change_number() {
string new_number;
cout << "编号： ";
cin >> new_number;
number = new_number;
}
void Fishoil::change_male() {
Fishoil fishoil;
char new_male;
cout << "性别： ";
cin >> new_male;
if (new_male != 'F' && new_male != 'M')
{
cout << "please try again,F means Female,M mean Male !";
fishoil.change_male();
}
else
male = new_male;
}
void Fishoil:: writein() { //录入数据的按钮
ofstream myfile("fishoil.txt", ios::app);
Fishoil fishoil;
if (!myfile.is_open())
{
cout << "未成功打开文件" << endl;
}
myfile << fishoil.name << "" << fishoil.number << "" << fishoil.male<<"\n" << endl;
myfile.close();
}
void Fishoil::buttony_n() { // 判断Y/N的按钮，
Fishoil fishoil;
int c1=0;
cout << "您是否需要继续录入数据 ？\n";
char yorn;
cin >> yorn;
if (yorn == 'Y')
{
fishoil.button1();
fishoil.buttony_n(); //递归实现再次的判断
}
else if (yorn == 'N')
//预留了一个返回按钮，以后可以做成N是返回上一级菜单，需要设置switch的递归，初步估计
fishoil.button();
else
fishoil.buttony_n();
}
void Fishoil::button() { //进行选择1~3的按键主面，和按键的选择。
Fishoil fishoil;
int choice;
cout << "1. 录入信息\n" << "2. 打印已录入结果\n" << "3. 退出\n";
cout << "Please choice which button you want !\n";
cin >>choice; // 判断选择的按钮
switch (choice)
{
case(1):
fishoil.button1(); //录入信息按钮
fishoil.button(); //进入主页面选择界面
case(2):
fishoil.button2();// 读取 .txt文件
fishoil.button(); // 进入主界面选择界面
case(3):
break;
default:
cout << "choice number 1~3,if you want to quit '3' means quit .\n";
fishoil.button();
break;
}
}
void Fishoil::button1() {//录入数据按钮
Fishoil fishoil;
fishoil.change_name();
fishoil.change_number();
fishoil.change_male();
fishoil.writein(); //进入写入信息到 .txt 文件程序
cout << "您此次录入的信息为：\n";
cout << fishoil.name << ""
<< fishoil.number << ""
<< fishoil.male << "" << endl;
fishoil.buttony_n(); //进入是否需要继续输入的判断按钮
}
void Fishoil::button2() { // 打印数据按钮
ifstream in("fishoil.txt");
string filename;
string line;
if (in) // 有该文件
{
while (getline(in, line)) // line中不包括每行的换行符
{
cout << line << endl;
}
}
else // 没有该文件
{
cout << "no such file" << endl;
}
}
int main() {
Fishoil fishoil;
fishoil.button();//进入主页面选择按钮
cout << "您的操作已经结束，正在退出...\n";
system("pause");
return 0;
}
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