实验任务1
point.hpp
1 #pragma once 2 #include <iostream> 3 using std::cout; 4 using std::endl; 5 class Point 6 { 7 public: 8 Point(int x0 = 0, int y0 = 0); 9 ~Point() = default; 10 int get_x() const; 11 int get_y() const; 12 void show() const; 13 void move(int new_x, int new_y); 14 private: 15 int x, y; 16 }; 17 Point::Point(int x0, int y0): x{x0}, y{y0} 18 { 19 } 20 int Point::get_x() const 21 { 22 return x; 23 } 24 int Point::get_y() const 25 { 26 return y; 27 } 28 void Point::show() const 29 { 30 cout << "(" << x << ", " << y << ")" << endl; 31 } 32 void Point::move(int new_x, int new_y) 33 { 34 x = new_x; 35 y = new_y; 36 }
task1.cpp
1 #include <iostream> 2 #include "point.hpp" 3 #include <vector> 4 using std::vector; 5 using std::cin; 6 void output(const vector<Point> &v) 7 { 8 for(auto &t: v) 9 t.show(); 10 } 11 void test() 12 { 13 int n; 14 cin >> n; 15 vector<Point> x(n); 16 cout << "x" << endl; 17 output(x); 18 vector<Point> y(x); 19 cout << "\nx " << endl; 20 output(y); 21 cout << "\nupdate x" << endl; 22 x.at(0).move(30, 50); 23 x.push_back(Point(2, 2)); 24 cout << "\nx total:" << endl; 25 output(x); 26 cout << "\ny total: " << endl; 27 output(y); 28 } 29 int main() 30 { 31 test(); 32 }
实验任务2
point.hpp
1 #pragma once 2 #include <iostream> 3 using std::cout; 4 using std::endl; 5 class Point { 6 public: 7 Point(int x0 = 0, int y0 = 0); 8 ~Point() = default; 9 int get_x() const; 10 int get_y() const; 11 void show() const; 12 void move(int new_x, int new_y); 13 private: 14 int x, y; 15 }; 16 Point::Point(int x0, int y0): x{x0}, y{y0} { 17 } 18 int Point::get_x() const { 19 return x; 20 } 21 int Point::get_y() const { 22 return y; 23 } 24 void Point::show() const { 25 cout << "(" << x << ", " << y << ")" << endl; 26 } 27 void Point::move(int new_x, int new_y) { 28 x = new_x; 29 y = new_y; 30 }
vectorPoint.hpp
1 #pragma once 2 #include "point.hpp" 3 #include <cassert> 4 #include <iostream> 5 class vectorPoint{ 6 public: 7 vectorPoint(int n); 8 ~vectorPoint(); 9 int get_size() const; 10 Point& at(int index); 11 Point& at(int index) const; 12 private: 13 int size; 14 Point *ptr; 15 }; 16 vectorPoint::vectorPoint(int n) : size{n} { 17 ptr = new Point[n]; 18 } 19 vectorPoint::~vectorPoint() { 20 delete[] ptr; 21 } 22 int vectorPoint::get_size() const { 23 return size; 24 } 25 Point& vectorPoint::at(int index) { 26 assert(index >= 0 && index < size); 27 return ptr[index]; 28 } 29 Point& vectorPoint::at(int index) const { 30 assert(index >= 0 && index < size); 31 return ptr[index]; 32 }
task2.cpp
1 #include "vectorPoint.hpp" 2 #include <iostream> 3 void output(const vectorPoint &v) { 4 for(auto i = 0; i < v.get_size(); ++i) 5 v.at(i).show(); 6 } 7 void test() { 8 using namespace std; 9 int n; 10 cout << "vectorPoint yuansugeshu: "; 11 cin >> n; 12 vectorPoint x(n); 13 cout << "x information: " << endl; 14 output(x); 15 vectorPoint y(x); 16 cout << "\ny information: " << endl; 17 output(y); 18 cout << "\nupdate x information......" << endl; 19 x.at(0).move(30, 50); 20 x.at(1).move(-1, -1); 21 cout << "x information: " << endl; 22 output(x); 23 cout << "\ny information: " << endl; 24 output(y); 25 } 26 int main() { 27 test(); 28 }
实验任务3
point.hpp
1 #pragma once 2 3 #include <iostream> 4 using std::cout; 5 using std::endl; 6 7 class Point { 8 public: 9 Point(int x0 = 0, int y0 = 0); 10 ~Point() = default; 11 12 int get_x() const; 13 int get_y() const; 14 void show() const; 15 void move(int new_x, int new_y); 16 17 private: 18 int x, y; 19 }; 20 21 Point::Point(int x0, int y0): x{x0}, y{y0} { 22 } 23 24 int Point::get_x() const { 25 return x; 26 } 27 28 int Point::get_y() const { 29 return y; 30 } 31 32 void Point::show() const { 33 cout << "(" << x << ", " << y << ")" << endl; 34 } 35 36 void Point::move(int new_x, int new_y) { 37 x = new_x; 38 y = new_y; 39 }
vectorPoint.hpp
1 #pragma once 2 #include "point.hpp" 3 #include <cassert> 4 #include <iostream> 5 class vectorPoint{ 6 public: 7 vectorPoint(int n); 8 vectorPoint(const vectorPoint &vp); 9 ~vectorPoint(); 10 int get_size() const; 11 Point& at(int index); 12 Point& at(int index) const; 13 private: 14 int size; 15 Point *ptr; 16 }; 17 vectorPoint::vectorPoint(int n) : size{n} { 18 ptr = new Point[n]; 19 } 20 vectorPoint::vectorPoint(const vectorPoint &vp): size{vp.size}, ptr{new 21 Point[size]} { 22 for(auto i = 0; i < size; ++i) 23 ptr[i] = vp.ptr[i]; 24 } 25 vectorPoint::~vectorPoint() { 26 delete[] ptr; 27 } 28 int vectorPoint::get_size() const { 29 return size; 30 } 31 Point& vectorPoint::at(int index) { 32 assert(index >= 0 && index < size); 33 return ptr[index]; 34 } 35 Point& vectorPoint::at(int index) const { 36 assert(index >= 0 && index < size); 37 return ptr[index]; 38 }
task3.cpp
1 #include "vectorPoint.hpp" 2 #include <iostream> 3 void output(const vectorPoint &v) { 4 for(auto i = 0; i < v.get_size(); ++i) 5 v.at(i).show(); 6 } 7 void test() { 8 using namespace std; 9 int n; 10 cout << "input vectorPoint how much number: "; 11 cin >> n; 12 vectorPoint x(n); 13 cout << "x information: " << endl; 14 output(x); 15 vectorPoint y(x); 16 cout << "\ny information: " << endl; 17 output(y); 18 cout << "\nupdate x information......" << endl; 19 x.at(0).move(30, 50); 20 x.at(1).move(-1, -1); 21 cout << "x information: " << endl; 22 output(x); 23 cout << "\ny information: " << endl; 24 output(y); 25 } 26 int main() { 27 test(); 28 }
实验任务4
task4_1.cpp
1 #include <iostream> 2 using namespace std; 3 4 void swap1(int &rx, int &ry); 5 void swap2(int *px, int *py); 6 void print(int x, int y); 7 8 void test() { 9 int x = 3, y = 4; 10 11 print(x, y); 12 swap1(x, y); 13 print(x, y); 14 15 cout << endl; 16 17 x = 3, y = 4; 18 print(x, y); 19 swap2(&x, &y); 20 print(x, y); 21 } 22 23 int main() { 24 test(); 25 } 26 27 void swap1(int &rx, int &ry) { 28 int t; 29 30 t = rx; rx = ry; ry = t; 31 } 32 33 void swap2(int *px, int *py) { 34 int t; 35 36 t = *px; *px = *py; *py = t; 37 } 38 39 void print(int x, int y) { 40 std::cout << "x = " << x << ", y = " << y << "\n"; 41 }
task4_2.cpp
1 #include <iostream> 2 #include <typeinfo> 3 using namespace std; 4 5 int main() { 6 int a; 7 8 int &ra = a; 9 ra = 4; 10 11 int *pa = &a; 12 *pa = 5; 13 14 cout << "&a = " << hex << &a << endl; 15 cout << "&ra = " << hex << &ra << endl; 16 cout << "&pa = " << hex << &pa << "\n\n"; 17 18 cout << "a = " << a << endl; 19 cout << "ra = " << a << endl; 20 cout << "pa = " << hex << pa << endl; 21 22 cout << "*pa = " << *pa << "\n\n"; 23 24 cout << "type a: " << typeid(a).name() << endl; 25 cout << "type ra: " << typeid(ra).name() << endl; 26 cout << "type pa: " << typeid(pa).name() << endl; 27 }
task4_3.cpp
1 #include <iostream> 2 #include <vector> 3 4 using namespace std; 5 6 template<typename T> 7 void output(const T &x) { 8 for(auto i: x) 9 std::cout << i << ", "; 10 std::cout << "\b\b \n"; 11 } 12 13 template<typename T> 14 void square1(T &x) { 15 for(auto i: x) 16 i *= i; 17 } 18 19 template<typename T> 20 void square2(T &x) { 21 for(auto &i: x) 22 i *= i; 23 } 24 25 void test1() { 26 vector<int> x {1, 2, 3, 4, 5}; 27 28 cout << "动态int型数组对象x内的元素值: "; 29 output(x); 30 31 cout << "调用函数square1()......" << endl; 32 square1(x); 33 34 cout << "动态int型数组对象x内的元素值: "; 35 output(x); 36 } 37 38 void test2() { 39 vector<int> x {1, 2, 3, 4, 5}; 40 41 cout << "动态int型数组对象x内的元素值: "; 42 output(x); 43 44 cout << "调用函数square2()......" << endl; 45 square2(x); 46 47 cout << "动态int型数组对象x内的元素值: "; 48 output(x); 49 } 50 51 int main() { 52 cout << "测试1: " << endl; 53 test1(); 54 55 cout << "\n测试2: " << endl; 56 test2(); 57 }
实验任务5
vectorInt.hpp
1 #include<iostream> 2 #include<cassert> 3 using namespace std; 4 class vectorInt 5 { 6 public: 7 vectorInt(int n); 8 vectorInt(int n,int a); 9 vectorInt(const vectorInt & vc); 10 int get_size() const; 11 ~vectorInt(); 12 int& at(int c); 13 int& at(int c) const; 14 private: 15 int b; 16 int *ptr; 17 }; 18 vectorInt::vectorInt(int n) 19 { 20 b=n; 21 ptr =new int[n]; 22 cout<<"constructor vectorInt(int n) called."<<endl; 23 } 24 vectorInt::vectorInt(int n,int a) 25 { 26 b=n;ptr= new int[n]; 27 for(int i=0;i<b;i++) 28 ptr[i]=a; 29 cout<<"constructor vectorInt(int n,int value) called"<<endl; 30 31 } 32 vectorInt::vectorInt(const vectorInt & vc) 33 { 34 b=vc.b; 35 ptr=new int[b]; 36 for(int i = 0; i < b; ++i) 37 ptr[i] = vc.ptr[i]; 38 cout<<"copy constructor called"<<endl; 39 } 40 vectorInt::~vectorInt() 41 { 42 delete[] ptr; 43 cout<<"destructor called"<<endl; 44 } 45 int vectorInt::get_size() const 46 { 47 return b; 48 } 49 int& vectorInt::at(int c) 50 { 51 assert(c >= 0 && c < b); 52 return ptr[c]; 53 } 54 int& vectorInt::at(int c) const 55 { 56 assert(c >= 0 && c < b); 57 return ptr[c]; 58 }
task5.cpp
1 #include "vectorInt.hpp" 2 #include <iostream> 3 4 using std::cout; 5 using std::cin; 6 using std::endl; 7 8 void output(const vectorInt &vi) { 9 for(auto i = 0; i < vi.get_size(); ++i) 10 cout << vi.at(i) << ", "; 11 cout << "\b\b \n"; 12 } 13 14 void test() { 15 int n; 16 cout << "输入vectorInt对象中元素个数: "; 17 cin >> n; 18 19 vectorInt x1(n); 20 for(auto i = 0; i < n; ++i) 21 x1.at(i) = i*i; 22 cout << "vectorInt对象x1: "; 23 output(x1); 24 25 vectorInt x2(n, 42); 26 cout << "vectorInt对象x2: "; 27 output(x2); 28 vectorInt x3(x2); 29 cout << "vectorInt对象x3: "; 30 output(x3); 31 32 cout << "更新vectorInt对象x2......\n"; 33 x2.at(0) = 77; 34 x2.at(1) = -999; 35 36 cout << "vectorInt对象x2: "; 37 output(x2); 38 cout << "vectorInt对象x3: "; 39 output(x3); 40 } 41 42 int main() { 43 test(); 44 }
实验任务6
matrix.hpp
1 #include <iostream> 2 #include <cassert> 3 using std::cout; 4 using std::endl; 5 6 class Matrix { 7 public: 8 Matrix(int n, int m); 9 Matrix(int n); 10 Matrix(const Matrix &x); 11 ~Matrix(); 12 void set(const double *pvalue); 13 void set(int i, int j, double value); 14 double& at(int i, int j) const; 15 double& at(int i, int j); 16 int get_lines() const; 17 int get_cols() const; 18 void print() const; 19 private: 20 int lines; 21 int cols; 22 double *ptr; 23 }; 24 25 26 27 28 Matrix::Matrix(int n,int m) 29 { 30 lines=n;cols=m; 31 ptr= new double[n*m]; 32 } 33 Matrix::Matrix(int n) 34 { 35 lines=n;cols=n; 36 ptr=new double[lines*cols]; 37 } 38 Matrix::Matrix(const Matrix &x) 39 { 40 lines=x.lines; 41 cols=x.cols; 42 ptr=new double[cols*lines]; 43 for(int i=0;i<lines;i++) 44 for(int j=0;j<cols;j++) 45 ptr[i*cols+j]=x.ptr[i*cols+j]; 46 } 47 Matrix::~Matrix() 48 { 49 delete[] ptr; 50 } 51 void Matrix::set(const double *pvaule) 52 { 53 for(int i=0;i<lines;i++) 54 for(int j=0;j<cols;j++) 55 ptr[i*cols+j]=pvaule[i*cols+j]; 56 } 57 void Matrix::set(int i,int j,double value) 58 { 59 ptr[i*cols+j]=value; 60 } 61 double& Matrix::at(int i,int j) 62 { 63 return ptr[i*cols+j]; 64 } 65 double& Matrix::at(int i,int j) const 66 { 67 return ptr[i*cols+j]; 68 } 69 int Matrix::get_lines() const 70 { 71 return lines; 72 } 73 int Matrix::get_cols() const 74 { 75 return cols; 76 } 77 void Matrix::print() const 78 { 79 for(int i=0;i<lines;i++) 80 { 81 for(int j=0;j<cols;j++) 82 { 83 cout<<ptr[i*cols+j]<<" "; 84 } 85 cout<<endl; 86 } 87 }
task6.cpp
1 #include <iostream> 2 #include "matrix.hpp" 3 4 using namespace std; 5 6 const int N1 = 3; 7 const int N2 = 2; 8 9 void output(const Matrix &m, int index) { 10 for(int j = 0; j < m.get_cols(); ++j) 11 cout << m.at(index, j) << ", "; 12 cout << "\b\b \n"; 13 } 14 15 void test() { 16 17 18 double x[N1*N2] = {1, 2, 3, 4, 5, 6}; 19 20 Matrix m1(N1, N2); 21 m1.set(x); 22 cout << "矩阵对象m1: " << endl; 23 m1.print(); 24 cout << "矩阵对象m1第0行是: " << endl; 25 output(m1, 0); 26 cout << endl; 27 28 Matrix m2(N2, N1); 29 m2.set(x); 30 cout << "矩阵对象m2: " << endl; 31 m2.print(); 32 cout << "矩阵对象m2第0行是: " << endl; 33 output(m2, 0); 34 cout << endl; 35 36 Matrix m3(m2); 37 m3.set(0, 0, 999); 38 cout << "矩阵对象m3:" << endl; 39 m3.print(); 40 cout << endl; 41 42 Matrix m4(2); 43 m4.set(x); 44 cout << "矩阵对象m4:" << endl; 45 m4.print(); 46 } 47 48 int main() { 49 test(); 50 }
