实验任务5
1 #pragma once
2
3 #include<iostream>
4 #include<iomanip>
5 #include<string>
6
7 using std::cout;
8 using std::endl;
9 using std::cin;
10 using std::setw;
11 using std::string;
12
13 class Info{
14 public:
15 Info(string name, string phone, string city_name, int number):nickname{name}, contact{phone}, city{city_name}, n{number} {}
16 void print();
17
18 private:
19 string nickname; //昵称
20 string contact; // 联系方式
21 string city; // 所在城市
22 int n; // 预定参加人数
23 };
24
25 void Info::print() {
26 cout << "昵称：" << nickname << endl;
27 cout << "联系方式： " << contact << endl;
28 cout << "所在城市：" << city << endl;
29 cout << "预定人数：" << n << endl;
30 cout << endl;
31 }
Info.hpp
1 #include "Info.hpp"
2 #include<string>
3 #include<iostream>
4 #include<vector>
5 #include<iomanip>
6 #include<limits>
7 using namespace std;
8
9 class Liveshow{
10 public:
11 void appointment();
12 void print();
13
14 private:
15 int nums = 0;
16 const int capacity = 100; // 最大容纳听众人数
17 vector<Info> audience_info_list;
18 };
19
20 void Liveshow::appointment(){
21 string title{"录入信息："};
22 cout << title << endl << endl;
23
24 string s1{"昵称"};
25 string s2{"联系方式（邮箱/手机号)"};
26 string s3{"所在城市"};
27 string s4{"预定参加人数"};
28
29 cout << left << setw(30) << s1
30 << left << setw(30) << s2
31 << left << setw(30) << s3
32 << left << setw(30) << s4 ;
33
34 string name;
35 while(cin >> name){
36 string contact, city;
37 int number;
38 cin >> contact;
39 cin >> city;
40 cin >> number;
41 if(nums+number >= capacity) {
42 cout << "对不起，只剩"<< capacity - nums <<"个位置。" << endl;
43 cout << "1. 输入u，更新(update)预定信息" << endl;
44 cout << "2. 输入q，退出预定" << endl;
45 cout << "你的选择：";
46 string choice;
47 cin >> choice;
48 cout << endl;
49 break;
50 }else{
51 nums+=number;
52 }
53 audience_info_list.push_back(Info(name, contact, city, number));
54 cin.ignore(numeric_limits<streamsize>::max(), '\n');
55 }
56
57 print();
58 }
59
60 void Liveshow::print() {
61 cout << "截至目前，一共有" << nums
62 << "位听众预定参加。预定听众信息如下：" << endl;
63
64 for(auto &item : audience_info_list) item.print();
65 }
66
67 int main()
68 {
69 Liveshow show;
70 show. Appointment();
71 }
task5.cpp
程序运行结果截图：
实验任务6
1 #include<string>
2
3 using std::string;
4
5 class TextCoder{
6 public:
7 TextCoder(string txt): text{txt} {}
8 string get_ciphertext();
9 string get_deciphertext();
10
11 private:
12 string text;
13 void encoder();
14 void decoder();
15 };
16
17 void TextCoder::encoder(){
18 for(int i = 0; i < text.size(); i++){
19 if( (text.at(i) >= 'V' && text.at(i) <= 'Z') || (text.at(i) >= 'v' && text.at(i) <= 'z') )
20 {
21 text.at(i) = text.at(i) - 21;
22 }
23 else if( (text.at(i) >= 'A' && text.at(i) <= 'U') || (text.at(i) >= 'a' && text.at(i) <= 'u') ){
24 text.at(i) += 5;
25 }
26 }
27 }
28
29 void TextCoder::decoder(){
30 for(int i = 0; i < text.size(); i++){
31 if( (text.at(i) >= 'A' && text.at(i) <= 'E') || (text.at(i) >= 'a' && text.at(i) <= 'e') )
32 {
33 text.at(i) = text.at(i) + 21;
34 }
35 else if( (text.at(i) >= 'F' && text.at(i) <= 'Z') || (text.at(i) >= 'f' && text.at(i) <= 'z') ){
36 text.at(i) -= 5;
37 }
38 }
39 }
40
41 string TextCoder::get_ciphertext(){
42 encoder();
43 return text;
44 }
45
46 string TextCoder::get_deciphertext(){
47 decoder();
48 return text;
49 }
TextCoder.hpp
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 }
task3.6.cpp
运行结果截图：
实验总结：
通过这次实验我了解了string类库的多种函数的使用，也了解了array和vector库的多种构造和调用方法，以及两者的多种循环调用方式。
但我还是不能熟练的掌握和使用array以及vector库的多种功能。
标签：std,string,text,void,实验,using,include From： https://www.cnblogs.com/gkd-gkd/p/16810884.html