任务一
point.hpp
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#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; }View Code
task1.cpp
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#include <iostream> #include "point.hpp" #include <vector> using std::vector; using std::cin; void output(const vector<Point> &v) { for(auto &t: v) t.show(); } void test() { int n; cin >> n; vector<Point> x(n); cout << "x" << endl; output(x); vector<Point> y(x); cout << "\nx " << endl; output(y); cout << "\nupdate x" << endl; x.at(0).move(30, 50); x.push_back(Point(2, 2)); cout << "\nx total:" << endl; output(x); cout << "\ny total: " << endl; output(y); } int main() { test(); }View Code
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任务二
Point.hpp
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#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; }View Code
vectorPoint.hpp
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#pragma once #include "point.hpp" #include <cassert> #include <iostream> class vectorPoint{ public: vectorPoint(int n); ~vectorPoint(); int get_size() const; Point& at(int index); Point& at(int index) const; private: int size; Point *ptr; }; vectorPoint::vectorPoint(int n) : size{n} { ptr = new Point[n]; } vectorPoint::~vectorPoint() { delete[] ptr; } int vectorPoint::get_size() const { return size; } Point& vectorPoint::at(int index) { assert(index >= 0 && index < size); return ptr[index]; } Point& vectorPoint::at(int index) const { assert(index >= 0 && index < size); return ptr[index]; }View Code
task2.cpp
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#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 << "vectorPoint yuansugeshu: "; cin >> n; vectorPoint x(n); cout << "x information: " << endl; output(x); vectorPoint y(x); cout << "\ny information: " << endl; output(y); cout << "\nupdate x information......" << endl; x.at(0).move(30, 50); x.at(1).move(-1, -1); cout << "x information: " << endl; output(x); cout << "\ny information: " << endl; output(y); } int main() { test(); }View Code
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任务三
Point.hpp
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#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; }View Code
vectorPoint.hpp
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#pragma once #include "point.hpp" #include <cassert> #include <iostream> class vectorPoint{ public: vectorPoint(int n); vectorPoint(const vectorPoint &vp); ~vectorPoint(); int get_size() const; Point& at(int index); Point& at(int index) const; private: int size; Point *ptr; }; vectorPoint::vectorPoint(int n) : size{n} { ptr = new Point[n]; } vectorPoint::vectorPoint(const vectorPoint &vp): size{vp.size}, ptr{new Point[size]} { for(auto i = 0; i < size; ++i) ptr[i] = vp.ptr[i]; } vectorPoint::~vectorPoint() { delete[] ptr; } int vectorPoint::get_size() const { return size; } Point& vectorPoint::at(int index) { assert(index >= 0 && index < size); return ptr[index]; } Point& vectorPoint::at(int index) const { assert(index >= 0 && index < size); return ptr[index]; }View Code
task3.cpp
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#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 << "input vectorPoint how much number: "; cin >> n; vectorPoint x(n); cout << "x information: " << endl; output(x); vectorPoint y(x); cout << "\ny information: " << endl; output(y); cout << "\nupdate x information......" << endl; x.at(0).move(30, 50); x.at(1).move(-1, -1); cout << "x information: " << endl; output(x); cout << "\ny information: " << endl; output(y); } int main() { test(); }View Code
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任务四
task4_1.cpp
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#include <iostream> using namespace std; void swap1(int &rx, int &ry); void swap2(int *px, int *py); void print(int x, int y); void test() { int x = 3, y = 4; print(x, y); swap1(x, y); print(x, y); cout << endl; x = 3, y = 4; print(x, y); swap2(&x, &y); print(x, y); } int main() { test(); } void swap1(int &rx, int &ry) { int t; t = rx; rx = ry; ry = t; } void swap2(int *px, int *py) { int t; t = *px; *px = *py; *py = t; } void print(int x, int y) { std::cout << "x = " << x << ", y = " << y << "\n"; }View Code
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task4_2.cpp
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#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; }View Code
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task4_3.cpp
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#include <iostream> #include <vector> using namespace std; template<typename T> void output(const T &x) { for(auto i: x) std::cout << i << ", "; std::cout << "\b\b \n"; } template<typename T> void square1(T &x) { for(auto i: x) i *= i; } template<typename T> void square2(T &x) { for(auto &i: x) i *= i; } void test1() { vector<int> x {1, 2, 3, 4, 5}; cout << "动态int型数组对象x内的元素值: "; output(x); cout << "调用函数square1()......" << endl; square1(x); cout << "动态int型数组对象x内的元素值: "; output(x); } void test2() { vector<int> x {1, 2, 3, 4, 5}; cout << "动态int型数组对象x内的元素值: "; output(x); cout << "调用函数square2()......" << endl; square2(x); cout << "动态int型数组对象x内的元素值: "; output(x); } int main() { cout << "测试1: " << endl; test1(); cout << "\n测试2: " << endl; test2(); }View Code
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任务五
task5.cpp
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#include "vectorInt.hpp" #include <iostream> using std::cout; using std::cin; using std::endl; void output(const vectorInt &vi) { for(auto i = 0; i < vi.get_size(); ++i) cout << vi.at(i) << ", "; cout << "\b\b \n"; } void test() { int n; cout << "输入vectorInt对象中元素个数: "; cin >> n; vectorInt x1(n); for(auto i = 0; i < n; ++i) x1.at(i) = i*i; cout << "vectorInt对象x1: "; output(x1); vectorInt x2(n, 42); cout << "vectorInt对象x2: "; output(x2); vectorInt x3(x2); 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(); }View Code
vectorInt.hpp
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#include<iostream> #include<cassert> using namespace std; class vectorInt { public: vectorInt(int n); vectorInt(int n,int m); vectorInt(const vectorInt & vc); int get_size() const; ~vectorInt(); int& at(int index); int& at(int index) const; private: int size; int *ptr; }; vectorInt::vectorInt(int n) { size=n; ptr =new int[n]; cout<<"constructor vectorInt(int n) called."<<endl; } vectorInt::vectorInt(int n,int m) { size=n;ptr= new int[n]; for(int i=0;i<size;i++) ptr[i]=m; cout<<"constructor vectorInt(int n,int value) called"<<endl; } vectorInt::vectorInt(const vectorInt & vc) { size=vc.size; ptr=new int[size]; for(int i = 0; i < size; ++i) ptr[i] = vc.ptr[i]; cout<<"copy constructor called"<<endl; } vectorInt::~vectorInt() { delete[] ptr; cout<<"destructor called"<<endl; } int vectorInt::get_size() const { return size; } int& vectorInt::at(int index) { assert(index >= 0 && index < size); return ptr[index]; } int& vectorInt::at(int index) const { assert(index >= 0 && index < size); return ptr[index]; }View Code
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任务六
task6.cpp
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#include <iostream> #include "matrix.hpp" using namespace std; const int N1 = 3; const int N2 = 2; void output(const Matrix &m, int index) { for(int 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); m1.set(x); cout << "矩阵对象m1: " << endl; m1.print(); 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); m3.set(0, 0, 999); cout << "矩阵对象m3:" << endl; m3.print(); cout << endl; Matrix m4(2); m4.set(x); cout << "矩阵对象m4:" << endl; m4.print(); } int main() { test(); }View Code
matrix.hpp
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#include <iostream> #include <cassert> using std::cout; using std::endl; class Matrix { public: Matrix(int n, int m); Matrix(int n); Matrix(const Matrix &x); ~Matrix(); void set(const double *pvalue); void set(int i, int j, double value); double& at(int i, int j) const; double& at(int i, int j); int get_lines() const; int get_cols() const; void print() const; private: int lines; int cols; double *ptr; }; Matrix::Matrix(int n,int m) { lines=n;cols=m; ptr= new double[n*m]; } Matrix::Matrix(int n) { lines=n;cols=n; ptr=new double[lines*cols]; } Matrix::Matrix(const Matrix &x) { lines=x.lines; cols=x.cols; ptr=new double[cols*lines]; for(int i=0;i<lines;i++) for(int j=0;j<cols;j++) ptr[i*cols+j]=x.ptr[i*cols+j]; } Matrix::~Matrix() { delete[] ptr; } void Matrix::set(const double *pvaule) { for(int i=0;i<lines;i++) for(int j=0;j<cols;j++) ptr[i*cols+j]=pvaule[i*cols+j]; } void Matrix::set(int i,int j,double value) { ptr[i*cols+j]=value; } double& Matrix::at(int i,int j) { return ptr[i*cols+j]; } double& Matrix::at(int i,int j) const { return ptr[i*cols+j]; } int Matrix::get_lines() const { return lines; } int Matrix::get_cols() const { return cols; } void Matrix::print() const { for(int i=0;i<lines;i++) { for(int j=0;j<cols;j++) { cout<<ptr[i*cols+j]<<" "; } cout<<endl; } }View Code
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标签:index,const,vectorPoint,Point,int,实验,数组,include,指针 From: https://www.cnblogs.com/NFurioso/p/17811033.html