#include<string> #include<iostream> using namespace std; class info { public: info(string nickname,string contact,string city,int n); info(); void print() const; private: string nickname,contact,city; int n; }; info::info(string nickname,string contact,string city,int n){ this->nickname=nickname; this->contact=contact; this->city=city; this->n=n; } void info::print() const { cout<<"称呼:\t\t"<<this->nickname<<endl; cout<<"联系方式:\t"<<this->contact<<endl; cout<<"所在城市:\t"<<this->city<<endl; cout<<"预定人数:\t"<<this->n<<endl; }
#include<vector> #include<string> #include"info.hpp" #include<iostream> int main() { using namespace std; vector<info>audience_info_list; int const capacity=100; string nickname,contact,city; int n,t=0; cout<<"录入信息:"<<endl; cout<<endl; cout<<"称呼/昵称,联系方式(邮箱/手机号),所在城市,预定参加人数"<<endl; while(cin>>nickname>>contact>>city>>n) { t+=n; if(t>capacity) { t-=n; char s; cout<<"对不起,只剩"<<100-t<<"个位置."<<endl; cout<<"1.输入u,更新(update)预定信息"<<endl; cout<<"2.输入q,退出预定"<<endl; cout<<"你的选择"; cin>>s; if(s=='q') break; else continue; } info info(nickname,contact,city,n); audience_info_list.push_back(info); } cout<<"截至目前,一共有"<<t<<"位听众预定参加。预定听众信息如下:"<<endl; for(vector<info>::iterator it=audience_info_list.begin();it!=audience_info_list.end();it++) { it->print(); } }
#include<string> #include<iostream> using namespace std; class textcoder { public: textcoder(string text); textcoder(); string encoder(); string decoder(); private: string text; }; textcoder::textcoder(string text) { this->text=text; } string textcoder::encoder() { int n,i; char c; const char*p=text.data(); n=strlen(p); char a[100]; for(i=0;i<n;i++) { c=*p; if(c>='a'&&c<'v') c+=5; else if(c=='v') c='a'; else if(c=='w') c='b'; else if(c=='x') c='c'; else if(c=='y') c='d'; else if(c=='z') c='e'; else if(c>='A'&&c<'V') c+=5; else if(c=='V') c='A'; else if(c=='W') c='B'; else if(c=='X') c='C'; else if(c=='Y') c='D'; else if(c=='Z') c='E'; a[i]=c; *p++; } a[n]='\0'; text=a; return this->text; } string textcoder::decoder() { int n,i; char c; const char*p=text.data(); n=strlen(p); char a[100]; for(i=0;i<n;i++) { c=*p; if(c>='f'&&c<='z') c-=5; else if(c=='a') c='v'; else if(c=='b') c='w'; else if(c=='c') c='x'; else if(c=='d') c='y'; else if(c=='e') c='z'; else if(c>='F'&&c<='Z') c-=5; else if(c=='A') c='V'; else if(c=='B') c='W'; else if(c=='C') c='X'; else if(c=='D') c='Y'; else if(c=='E') c='Z'; a[i]=c; *p++; } a[n]='\0'; text=a; return this->text; }
#include"textcoder.hpp" #include<iostream> #include<string> int main() { using namespace std; string text,encoded_text,decoded_text; cout<<"输入英文文本:"; while(getline(cin, text)) { encoded_text=textcoder(text).encoder(); cout<<"加密后英文文本:"<<encoded_text<<endl; decoded_text=textcoder(encoded_text).decoder(); cout<<"解密后英文文本:"<<decoded_text<<endl; cout<<"\n输入英文文本:"; } }