我在 C++ 中有关于 SMMA 的课程项目，其中我有这些课程：客户、活动、分析、发票、邮政。
#include<iostream>
#include<cstring>
#include<vector>
using namespace std;
class IOinterface{
public:
virtual istream& input(istream&) = 0;
virtual ostream& output(ostream&) const = 0;
};
class Client {
protected:
char* client_name;
const int clientID;
static int numberOfClients;
string company;
long marketing_budget;
bool contract;
public:
void setClientName(const char* newClientName) {
if(this->client_name != nullptr) {
delete[] this->client_name;
this->client_name = nullptr;
}
this->client_name = new char [strlen(newClientName) + 1];
strcpy(this->client_name, newClientName);
}
const char* getClientName() const {return this-> client_name;}
void setCompany(string newCompany) {this->company = newCompany;}
string getCompany() {return this->company;}
void setMarketingBudget(long newMarketingBudget) {this->marketing_budget = newMarketingBudget;}
long getMarketingBudget() {return this->marketing_budget;}
void setContract(bool newContract) {this->contract = newContract;}
bool getContract() {return this->contract;}
Client();
Client(const char* client_name, const string company, const long marketing_budget, const bool contract);
Client(const Client& obj);
Client& operator=(const Client& obj);
~Client();
friend istream& operator>>(istream& in, Client& obj);
friend ostream& operator<<(ostream& out, const Client& obj);
};
int Client::numberOfClients = 0;
Client::Client():clientID(++numberOfClients){
this->client_name = new char[strlen("NULL") + 1];
strcpy(this->client_name, "NULL");
this->company = "NULL";
this->marketing_budget = 0;
this->contract = 0;
}
Client::Client(const char* client_name, const string company, const long marketing_budget, const bool contract):clientID(++numberOfClients) {
this->client_name = new char[strlen(client_name) + 1];
strcpy(this->client_name, client_name);
this->company = company;
this->marketing_budget = marketing_budget;
this->contract = contract;
}
Client::Client(const Client& obj):clientID(++numberOfClients) {
this->client_name = new char[strlen(obj.client_name) + 1];
strcpy(this->client_name, obj.client_name);
this->company = obj.company;
this->marketing_budget = obj.marketing_budget;
this->contract = obj.contract;
}
Client& Client::operator=(const Client& obj) {
if(this != &obj) {
if(this->client_name != nullptr) {
delete[] this->client_name;
this->client_name = nullptr;
}
this->client_name = new char[strlen(obj.client_name) + 1];
strcpy(this->client_name, obj.client_name);
this->company = obj.company;
this->marketing_budget = obj.marketing_budget;
this->contract = obj.contract;
}
return *this;
}
Client::~Client() {
if (this->client_name != nullptr) {
delete[] this->client_name;
this->client_name = nullptr;
}
}
istream& operator>>(istream& in, Client& obj) {
cout << "Client name: ";
char name[150];
in.getline(name, 150);
if (obj.client_name != nullptr) {
delete[] obj.client_name;
obj.client_name = nullptr;
}
obj.client_name = new char[strlen(name) + 1];
strcpy(obj.client_name, name);
cout << "Company: ";
getline(in, obj.company);
cout << "Marketing budget: ";
in >> obj.marketing_budget;
cout << "Contract: ";
in >> obj.contract;
return in;
}
ostream& operator<<(ostream& out, const Client& obj) {
out << "---------------------------------------------------" << endl;
out << "ClientID: " << obj.clientID << "\n";
out << "Client name: "<< obj.client_name << "\n";
out << "Number of clients: " << obj.numberOfClients << "\n";
out << "Company: " << obj.company << "\n";
out << "Marketing budget: " << obj.marketing_budget << "\n";
out << "Contract: " << obj.contract << "\n";
out << "---------------------------------------------------" << endl;
return out;
};
class Campaign : public IOinterface, virtual public Client {
private:
char* campaign_name;
vector<string> objectives;
string socialMediaPlatform;
public:
void setCampaignName(const char* newCampaignName) {
if(this->campaign_name != nullptr) {
delete[] this->campaign_name;
this->campaign_name = nullptr;
}
this->campaign_name = new char[strlen(newCampaignName) + 1];
strcpy(this->campaign_name, newCampaignName);
}
const char* getCampaignName() {return this->campaign_name;}
void setObjectives(const vector<string>& newObjectives) {this->objectives = objectives;}
const vector<string>& getObjectives() {return this-> objectives;}
void setSocialMediaPlatform(string newSocialMediaPlatform) {this->socialMediaPlatform = newSocialMediaPlatform;}
string getSocialMediaPlatform() {return this->socialMediaPlatform;}
Campaign();
Campaign(const char* campaign_name, const vector<string> objectives, const string socialMediaPlatform);
Campaign(const Campaign& obj);
Campaign& operator=(const Campaign& obj);
~Campaign();
friend istream& operator>>(istream& in, Campaign& obj);
friend ostream& operator<<(ostream& out, const Campaign& obj);
};
Campaign::Campaign() {
this->campaign_name = new char[strlen("NULL") + 1];
strcpy(this->campaign_name, "NULL");
this->objectives = {};
this->socialMediaPlatform = "NULL";
};
Campaign::Campaign(const char* campaign_name, const vector<string> objectives, const string socialMediaPlatform) {
this->campaign_name = new char[strlen(campaign_name) + 1];
strcpy(this->campaign_name, campaign_name);
this->objectives = objectives;
this->socialMediaPlatform = socialMediaPlatform;
}
Campaign::Campaign(const Campaign& obj) {
this->campaign_name = new char[strlen(obj.campaign_name) + 1];
strcpy(this->campaign_name, obj.campaign_name);
this->objectives = obj.objectives;
this->socialMediaPlatform = obj.socialMediaPlatform;
}
Campaign& Campaign::operator=(const Campaign& obj) {
if (this != &obj) {
if(this->campaign_name != nullptr) {
delete[] this-> campaign_name;
this->campaign_name = nullptr;
}
this->campaign_name = new char[strlen(obj.campaign_name) + 1];
strcpy(this->campaign_name, obj.campaign_name);
this->objectives = obj.objectives;
this->socialMediaPlatform = obj.socialMediaPlatform;
}
return *this;
}
Campaign::~Campaign() {
if(this->campaign_name != nullptr) {
delete[] this->campaign_name;
this->campaign_name = nullptr;
}
}
istream& operator>>(istream& in, Campaign &obj) {
cout << "Campaign name: ";
char name[100];
in.getline(name, 100);
if(obj.campaign_name != nullptr) {
delete[] obj.campaign_name;
obj.campaign_name = nullptr;
}
obj.campaign_name = new char[strlen(name) + 1];
strcpy(obj.campaign_name, name);
cout << "Objectives: ";
string temp;
while(getline(in, temp)) {
if (temp.empty()) {
break;
}
obj.objectives.push_back(temp);
cout << "Enter another objective (or press Enter to finish): ";
}
cout << "Social media platform: ";
in >> obj.socialMediaPlatform;
return in;
}
ostream& operator<<(ostream& out, const Campaign& obj) {
out << "---------------------------------------------------" << endl;
out << "Campaign name: " << obj.campaign_name << "\n";
out << "Objectives: ";
for (int i = 0; i < obj.objectives.size(); i++)
if (i == 0) {
out << "-" << obj.objectives[i] << endl;
} else {
out << " -" << obj.objectives[i] << endl;
}
out << "Social media platform: " << obj.socialMediaPlatform << "\n";
out << "---------------------------------------------------" << endl;
return out;
}
int main() {
Campaign a("pix", {"bani", "likes"}, "Instagram"), b;
cin>>b;
cout <<b;
}
打字时我要
int main() {
Client A;
Campaign B;
cin >> A >> B;
cout << B;
}
提示输入有关 Client 对象的详细信息，然后输入有关 Campaign 对象的详细信息，然后在执行“cout << B" I want to see on the screen all the information specific to the Campaign object and also some things inherited from the Client object. Instead, for those things inherited from the Client object, it shows NULL or 0, like in the default constructor of the class.