实验任务5
TextCoder.hpp源码
1 #include<iostream>
2 #include<string>
3
4 using std::string;
5
6 class TextCoder {
7 private:
8 string text;
9 void encoder();
10 void decoder();
11 public:
12 TextCoder(string &str);
13 TextCoder(const TextCoder &t);
14 string get_ciphertext();
15 string get_deciphertext();
16 };
17 TextCoder::TextCoder(string &str)
18 : text{str} {
19 }
20 TextCoder::TextCoder(const TextCoder &t)
21 : text{t.text} {
22 }
23 void TextCoder::encoder() {
24 for (auto &i : text) {
25 if (i >= 'a' && i <= 'z')
26 i = 'a' + ((i - 'a') + 7) % 26;
27 else if (i >= 'A' && i <= 'Z')
28 i = 'A' + ((i - 'A') + 7) % 26;
29 }
30 }
31 void TextCoder::decoder() {
32 for (auto &i : text) {
33 if (i >= 'a' && i <= 'z')
34 i = 'a' + ((i - 'a') + 26 - 7) % 26;
35 else if (i >= 'A' && i <= 'Z')
36 i = 'A' + ((i - 'A') + 26 - 7) % 26;
37 }
38
39 }
40 string TextCoder::get_ciphertext() {
41 encoder();
42 return text;
43 }
44 string TextCoder::get_deciphertext() {
45 decoder();
46 return text;
47 }
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task5.cpp源码
1 #include "textcoder.hpp"
2 #include <iostream>
3 #include <string>
4
5 void test() {
6 using namespace std;
7
8 string text, encoded_text, decoded_text;
9
10 cout << "输入英文文本: ";
11 while (getline(cin, text)) {
12 encoded_text = TextCoder(text).get_ciphertext(); // 这里使用的是临时无名对象
13 cout << "加密后英文文本:\t" << encoded_text << endl;
14
15 decoded_text = TextCoder(encoded_text).get_deciphertext(); // 这里使用的是临时无名对象
16 cout << "解密后英文文本:\t" << decoded_text << endl;
17 cout << "\n输入英文文本: ";
18 }
19 }
20
21 int main() {
22 test();
23 }
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实验任务6
Info.hpp文件源码
1 #include<iostream>
2
3 using std::string;
4
5 class Info {
6 private:
7 string nickname;
8 string contact;
9 string city;
10 int n;
11 public:
12 Info(string&,string&,string&,int&);
13 void print();
14 };
15 Info::Info(string &nickname,string &contact,string &city,int &n) {
16 this->nickname = nickname;
17 this->contact = contact;
18 this->city = city;
19 this->n = n;
20 }
21 void Info::print() {
22 std::cout<<"昵称：\t\t"<<nickname<<std::endl;
23 std::cout<<"联系方式：\t"<<contact<<std::endl;
24 std::cout<<"所在城市：\t"<<city<<std::endl;
25 std::cout<<"预定人数：\t"<<n<<std::endl;
26 }
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task6.cpp源码
1 #include <iostream>
2 #include <string>
3 #include <vector>
4 #include"Info.hpp"
5 using namespace std;
6
7 int main() {
8 const int capacity = 100;
9 vector<Info> audience_info_list;
10 vector<Info> &v = audience_info_list;
11 int sum = 0;
12
13 cout << "录入信息：\n\n";
14 cout << "昵称\t\t";
15 cout << "联系方式(邮箱/手机号)\t\t";
16 cout << "所在城市\t";
17 cout << "预定人数" << endl;
18 string nickname, contact, city;
19 int n;
20 while (cin >> nickname >> contact >> city >> n) {
21 if (sum + n <= capacity) {
22 Info a(nickname, contact, city, n);
23 v.push_back(a);
24 sum += n;
25 }
26 else {
27 cout << "对不起，只剩" << capacity - sum << "个位置。\n";
28 cout << "1.输入u，更新(updata)预定信息" << endl;
29 cout << "2.输入q，退出预定" << endl;
30 cout << "你的选择：";
31
32 char c;
33 cin >> c;
34 if (c == 'q') break;
35 else if (c == 'u') continue;
36 else break;
37 }
38 if (sum == capacity) break;
39 }
40 cout << endl;
41
42 cout << "截至目前，一共有" << sum << "位听众预定参加。";
43 if (sum != 0) {
44 cout << "预定听众信息如下：" << endl;
45 for (int i = 0; i < v.size(); i++) {
46 v[i].print();
47 cout << endl;
48 }
49 }
50 }
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运行测试截图
