JZTXT

实验3

发布时间 2023-11-05 19:14:46作者: 二十四桥as
#pragma once
#include<iostream>
using std::cout;
using std::endl;

class Point
{  public:
    Point(int x0 = 0, int y0 = 0);
    ~Point() = default;
    int get_x() const;
    int get_y()  const;
    void show() const;
    void move(int new_x, int new_y);
private:
    int x, y;
};
Point::Point(int x0, int y0) :x{ x0 }, y{ y0 } {
}
int Point::get_x() const {
    return x;
}
int Point::get_y() const {
    return y;
}
void Point::show() const {
    cout << "(" << x << "," << y << ")" << endl;
}
void Point::move(int new_x, int new_y) {
    x = new_x;
    y = new_y;
}

 #pragma once
#include <iostream>
using std::cout;
using std::endl;
class Point {
public:
Point(int x0 = 0, int y0 = 0);
~Point() = default;
int get_x() const;
int get_y() const;
void show() const;
void move(int new_x, int new_y);
private:
int x, y;
};
Point::Point(int x0, int y0): x{x0}, y{y0} {
}
int Point::get_x() const {
return x;
}
int Point::get_y() const {
return y;
}
void Point::show() cons
复制代码
#include "vectorPoint.hpp"
#include <iostream>
void output(const vectorPoint &v) {
for(auto i = 0; i < v.get_size(); ++i)
v.at(i).show();
}
void test() {
using namespace std;
int n;
cout << "输入vectorPoint对象中元素个数: ";
cin >> n;
vectorPoint x(n);
cout << "x对象中所有点坐标信息: " << endl;
output(x);
vectorPoint y(x);
cout << "\ny对象中所有点坐标信息: " << endl;
复制代码
 

t {
cout << "(" << x << ", " << y << ")" << endl;}
void Point::move(int new_x, int new_y) {
x = new_x;
y = new_y;}

#include "vectorPoint.hpp"
#include <iostream>
// 输出vectorPoint对象内的所有数据
void output(const vectorPoint &v) {
for(auto i = 0; i < v.get_size(); ++i)
v.at(i).show();
}
// 测试vectorPoint类：构造对象、复制构造对象
void test() {
using namespace std;
int n;
cout << "输入vectorPoint对象中元素个数: ";
cin >> n;
vectorPoint x(n);
cout << "x对象中所有点坐标信息: " << endl;
output(x);
vectorPoint y(x);
cout << "\ny对象中所有点坐标信息: " << endl;
output(y);
cout << "\n更新x对象中点坐标信息......" << endl;
x.at(0).move(30, 50);
x.at(1).move(-1, -1);
cout << "x对象中所有点坐标信息: " << endl;
output(x);
cout << "\ny对象中所有点坐标信息: " << endl;
output(y);
}
int main() {
test();}

#include <iostream>
#include <typeinfo>
using namespace std;
int main() {
int a;
int &ra = a;
ra = 4;
int *pa = &a;
*pa = 5;
cout << "&a = " << hex << &a << endl;
cout << "&ra = " << hex << &ra << endl;
cout << "&pa = " << hex << &pa << "\n\n";
cout << "a = " << a << endl;
cout << "ra = " << a << endl;
cout << "pa = " << hex << pa << endl;
cout << "*pa = " << *pa << "\n\n";
cout << "type a: " << typeid(a).name() << endl;
cout << "type ra: " << typeid(ra).name() << endl;
cout << "type pa: " << typeid(pa).name() << endl;}

#include "vectorInt.hpp"
#include <iostream>
using std::cout;
using std::cin;
using std::endl;
// 函数output()的定义：遍历输出vectorInt对象内的所有元素
void output(const vectorInt& vi) {
    for (auto i = 0;i < vi.get_size();i++)
        cout << vi.at(i);
}
void test() {
    int n;
    cout << "输入vectorInt对象中元素个数: ";
    cin >> n;
    vectorInt x1(n); // 构造动态int数组对象x1，包含n个元素，不对元素初始化
    for (auto i = 0; i < n; ++i)
        x1.at(i) = i * i;
    cout << "vectorInt对象x1: ";
    output(x1);
    vectorInt x2(n, 42); // 构造动态int数组对象x1，包含n个元素，每个元素初始值为42
    cout << "vectorInt对象x2: ";
    output(x2);
    vectorInt x3(x2); // 使用x2构造x3
    cout << "vectorInt对象x3: ";
    output(x3);
    cout << "更新vectorInt对象x2......\n";
    x2.at(0) = 77;
    x2.at(1) = -999;
    cout << "vectorInt对象x2: ";
    output(x2);
    cout << "vectorInt对象x3: ";
    output(x3);
}
int main() {
    test();
}

#include <iostream>
#include "matrix.hpp"
using namespace std;
const int N1 = 3;
const int N2 = 2;
// 输出一个矩阵对象中索引为index对应的行的所有元素值
void output(const Matrix &m, int index) {
for(auto j = 0; j < m.get_cols(); ++j)
cout << m.at(index, j) << ", ";
cout << "\b\b \n";
}
void test() {
double x[N1*N2] = {1, 2, 3, 4, 5, 6};
Matrix m1(N1, N2); // 创建一个N1×N2矩阵
m1.set(x); // 用一维数组x的值按行为矩阵m1赋值
cout << "矩阵对象m1: " << endl;
m1.print(); // 打印矩阵m1的值
cout << "矩阵对象m1第0行是: " << endl;
output(m1, 0);
cout << endl;
Matrix m2(N2, N1);
m2.set(x);
cout << "矩阵对象m2: " << endl;
m2.print();
cout << "矩阵对象m2第0行是: " << endl;
output(m2, 0);
cout << endl;
Matrix m3(m2); // 用矩阵m2构造新的矩阵m3
m3.set(0, 0, 999); // 讲矩阵对象m2索引(0,0)元素设为999
cout << "矩阵对象m3:" << endl;
m3.print();
cout << endl;
Matrix m4(2); // 创建一个2*2矩阵对象
m4.set(x); // 用一维数组x的值按行为矩阵m4赋值
cout << "矩阵对象m4:" << endl;
m4.print();
}
int main() {
test();
}