1.实验任务4
1 #include <iostream>
2 #include <stdexcept>
3
4 template <typename T>
5 class Vector {
6 private:
7 T* data;
8 size_t size;
9 public:
10 Vector(size_t n) : size(n) {
11 data = new T[size];
12 }
13 Vector(size_t n, const T& value) : size(n) {
14 data = new T[size];
15 for (size_t i = 0; i < size; ++i) {
16 data[i] = value;
17 }
18 }
19 Vector(const Vector& other) : size(other.size) {
20 data = new T[size];
21 for (size_t i = 0; i < size; ++i) {
22 data[i] = other.data[i];
23 }
24 }
25 ~Vector() {
26 delete[] data;
27 }
28
29 size_t get_size() const {
30 return size;
31 }
32
33 T& at(size_t i) {
34 if (i >= size) {
35 throw std::out_of_range("Index out of range");
36 }
37 return data[i];
38 }
39 T& operator[](size_t i) {
40 if (i >= size) {
41 throw std::out_of_range("Index out of range");
42 }
43 return data[i];
44 }
45 friend void output(const Vector& v) {
46 for (size_t i = 0; i < v.size; ++i) {
47 std::cout << v.data[i] << " ";
48 }
49 std::cout << std::endl;
50 }
51 };
vector.hpp
1 #include <iostream>
2 #include "Vector.hpp"
3
4 void test() {
5 using namespace std;
6 int n;
7 cin >> n;
8 Vector<double> x1(n);
9 for (auto i = 0; i < n; ++i)
10 x1.at(i) = i * 0.7;
11 output(x1);
12 Vector<int> x2(n, 42);
13 Vector<int> x3(x2);
14 output(x2);
15 output(x3);
16 x2.at(0) = 77;
17 output(x2);
18 x3[0] = 999;
19 output(x3);
20
21 int main() {
22 test();
23 return 0;
24 }
task4.cpp
2.实验任务5
1 #include <iostream>
2 #include <fstream>
3 #include <iomanip>
4
5 using namespace std;
6
7 void printCharRow(std::ostream& out, int row, char baseChar)
8 {
9 for (int i = 0; i < 26; i++) {
10 char n = baseChar + (row + i) % 26;
11 out << setw(2) << n << ' ';
12 }
13 out << endl;
14 }
15
16 void output(std::ostream& out)
17 {
18 for (int i = 0; i < 26; i++) {
19 if (i == 0) {
20 out << ' ' << setw(2) << ' ';
21 }
22 else {
23 out << setw(2) << i << ' ';
24 }
25 printCharRow(out, i, (i == 0) ? 'a' : 'A');
26 }
27 }
28
29 int main()
30 {
31 cout << "屏幕上打印出：\n" << endl;
32 output(cout);
33
34 ofstream outfile("cipher_key.txt");
35 if (outfile.is_open()) {
36 output(outfile);
37 outfile.close();
38 }
39 else {
40 cout << "无法打开文件 cipher_key.txt" << endl;
41 }
42
43 return 0;
44 }
task5.cpp
1 a b c d e f g h i j k l m n o p q r s t u v w x y z 2 1 B C D E F G H I J K L M N O P Q R S T U V W X Y Z A 3 2 C D E F G H I J K L M N O P Q R S T U V W X Y Z A B 4 3 D E F G H I J K L M N O P Q R S T U V W X Y Z A B C 5 4 E F G H I J K L M N O P Q R S T U V W X Y Z A B C D 6 5 F G H I J K L M N O P Q R S T U V W X Y Z A B C D E 7 6 G H I J K L M N O P Q R S T U V W X Y Z A B C D E F 8 7 H I J K L M N O P Q R S T U V W X Y Z A B C D E F G 9 8 I J K L M N O P Q R S T U V W X Y Z A B C D E F G H 10 9 J K L M N O P Q R S T U V W X Y Z A B C D E F G H I 11 10 K L M N O P Q R S T U V W X Y Z A B C D E F G H I J 12 11 L M N O P Q R S T U V W X Y Z A B C D E F G H I J K 13 12 M N O P Q R S T U V W X Y Z A B C D E F G H I J K L 14 13 N O P Q R S T U V W X Y Z A B C D E F G H I J K L M 15 14 O P Q R S T U V W X Y Z A B C D E F G H I J K L M N 16 15 P Q R S T U V W X Y Z A B C D E F G H I J K L M N O 17 16 Q R S T U V W X Y Z A B C D E F G H I J K L M N O P 18 17 R S T U V W X Y Z A B C D E F G H I J K L M N O P Q 19 18 S T U V W X Y Z A B C D E F G H I J K L M N O P Q R 20 19 T U V W X Y Z A B C D E F G H I J K L M N O P Q R S 21 20 U V W X Y Z A B C D E F G H I J K L M N O P Q R S T 22 21 V W X Y Z A B C D E F G H I J K L M N O P Q R S T U 23 22 W X Y Z A B C D E F G H I J K L M N O P Q R S T U V 24 23 X Y Z A B C D E F G H I J K L M N O P Q R S T U V W 25 24 Y Z A B C D E F G H I J K L M N O P Q R S T U V W X 26 25 Z A B C D E F G H I J K L M N O P Q R S T U V W X Ycipher_key.txt
标签：out,Vector,实验,output,include,data,size From： https://www.cnblogs.com/ZJY1203/p/17909902.html