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  • 大小: 11KB
    文件類型: .cpp
    金幣: 1
    下載: 0 次
    發布日期: 2021-06-08
  • 語言: C/C++
  • 標簽:

資源簡介

這是老師布置的C++實驗,我自己寫的實驗

資源截圖

代碼片段和文件信息

#include?
#include?
#include?
#include?
#include?
using?namespace?std;

class?person
{
public:
void?add();????
????void?del();????
????void?alter();???
????void?save_new();??
void?show();???
????void?select();???
private:
????string?author;
string?sex;
string?telephone;
};

class?keyan
{
public:
????keyan();?????//默認構造函數
char?menu();//首頁
????void?show();//顯示所有科研項目
????void?select();//查詢科研項目
private:
??? string?name;??????//科研名稱?????????
string?author;???//科研作者
string?sex;??????//性別
string?publishing_company;???//經費
string?date;?????//科研編號
string?state;????//科研狀態
string?laiyuan;??//科研來源
string?telephone;???//聯系方式
};

class?manage_keyan
{
public:
????void?add();????
????void?del();????
????void?alter();???
????void?save_new();??
private:
????string?name;??????????????
string?author;???
????string?sex;??????
string?publishing_company;???
string?date;??????
string?state;????
string?laiyuan;????
string?telephone;???
};


keyan::keyan()
{
????name?=?“\0“;
????author?=?“\0“;
????publishing_company?=?“\0“;
????date?=?“\0“;
}


//?主界面?????
char?keyan::menu()????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
{
system(“cls“);
cout<
cout< cout< cout<<“\t\t\t\t??主菜單?“< cout<<“\t\t\t1.?添加科研項目“< cout<<“\t\t\t2.?刪除科研項目?“< cout<<“\t\t\t3.?顯示所有科研項目“< cout<<“\t\t\t4.?修改科研項目?“< cout<<“\t\t\t5.?查詢科研項目??“< cout<<“\t\t\t6.?結束??“< cout<<“\t\t\t???請選擇:“;??
????char?choose;
?????????cin?>>choose;
????????fflush(stdin);
????????return?choose;
}


//增加科研項目
void?manage_keyan::add()
{
????cout?<????????<<“科研項目名稱?:“?;
????cin?>>name;
cout<????fflush(stdin);
????cout?<<“科研作者?:?“;
????cin?>>author;
cout<????fflush(stdin);

cout?<<“性別?:?“;
????cin?>>sex;
cout<????fflush(stdin);

????cout?<<“經費:?“;
????cin?>>publishing_company;
cout<????fflush(stdin);
????cout?<<“科研編號?:?“;
????cin?>>date;
cout<????fflush(stdin);
????cout?<<“項目狀態?:?“;
????cin?>>state;
cout<??? fflush(stdin);
cout?<<“科研項目來源?:?“;
????cin?>>laiyuan;
cout<????fflush(stdin);

cout?<<“聯系方式?:?“;
????cin?>>telephone;
cout<????fflush(stdin);

????save_new();
????cout?<????system(“pause“);
}
??
//刪除科研項目
void?manage_keyan::del()
{
????ofstream?outData(“temp.txt“?ios::out);
????ifstream?inData(“pbook.txt“?ios::in);?
if?(!outData?||?!inData)
????{
????????cout?<????????system(“pause“);
????????return;
????}
????
????string?sign;
????cout?<

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