“你帮我助”软件开发
程序语言为C++
首版PSP和代码
第一版代码
第一版代码实现了软件中的4个核心功能，以及比较基本的命令行交互界面。
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///////////////////////////////////////////////////////////////////
// 文件名：“你帮我助”物品交换软件 //
//功能说明：可以实现添加物品的信息，删除物品的信息，显示物品列表，查找物品的信息//
// 作者：赵鹏飞 //
// 日期：2022.10.3 //
///////////////////////////////////////////////////////////////////
include
using namespace std;
class ItemList
{
private:
struct Item
{
string userName, phoneNumber, itemName, itemWant;
int itemQuantity;
Item* next;
Item(const string& uN, const string& pN, const string& iN,
const string& iW, const int iQ, Item* p = NULL){
userName = uN;
phoneNumber = pN;
itemName = iN;
itemWant = iW;
itemQuantity = iQ;
next = p;
}
Item():next(NULL){}
~Item(){}
};
int itemNumber;
Item* head;
public:
ItemList(int initSize = 10){head = new Item; itemNumber = 0;}
~ItemList(){clear(); delete head;}
void add_item(const string& uN, const string& pN, const string& iN,
const string& iW, int iQ);
void delete_item(int number);
void itemlist_display() const;
void item_search(const string& iN) const;
void clear();
};
void ItemList::add_item(const string& uN, const string& pN, const string& iN,
const string& iW, const int iQ) {
Item* p = head;
if(!p) return;
Item* tmp = new Item(uN, pN, iN, iW, iQ, head->next);
p->next = tmp;
++itemNumber;
}
void ItemList::delete_item(const int number) {
Item* p = head;
for(int i = 0; i < itemNumber-number; ++i) p = p->next;
if(!p || !p->next) return;
Item* tmp = p->next;
p->next = tmp->next;
delete tmp;
--itemNumber;
}
void ItemList::itemlist_display() const {
cout<<"---------------------------------------------------------------------------------"<<endl;
cout<<"| Item List |"<<endl;
cout<<"---------------------------------------------------------------------------------"<<endl;
cout<<"| number |usernames| phone numbers | item names | items want |quantity|"<<endl;
Item* p = head;
if(!p) return;
for(int i = itemNumber; i > 0; --i){
p = p->next;
cout<<"---------------------------------------------------------------------------------"<<endl;
cout<<"| "<<i;
cout<<" | "<<p->userName;
cout<<" | "<<p->phoneNumber;
cout<<" | "<<p->itemName;
cout<<" | "<<p->itemWant;
cout<<" | "<<p->itemQuantity;
cout<<" |"<<endl;
}
cout<<"---------------------------------------------------------------------------------"<<endl;
}
void ItemList::item_search(const string& iN) const {
Item* p = head->next;
if(!p) return;
int itemCount = 0;
while(p){
if(p->itemName == iN){
cout<< "Item found:";
cout<<"username:"<< p->userName <<" ";
cout<<"phone number:"<< p->phoneNumber <<" ";
cout<<"item quantity:"<< p->itemQuantity <<" ";
cout<<"items want:"<< p->itemWant <<endl;
++itemCount;
}
p = p->next;
}
cout<<itemCount<<" items found."<<endl;
}
void ItemList::clear() {
Item* p = head->next;
Item* q;
while(p){
q = p->next;
delete p;
p = q;
}
}
int main()
{
cout<<"--------------------------------------------------------------------------"<<endl;
cout<<"| Welcome to 'HELPS'! |"<<endl;
cout<<"--------------------------------------------------------------------------"<<endl;
ItemList a = ItemList();
while(true){
cout<<"--------------------------------------------------------------------------"<<endl;
cout<<"| Please select a function: |"<<endl;
cout<<"| 1:add an item 2:delete an item 3:display all |"<<endl;
cout<<"| 4:search for an item 5:exit and delete the list |"<<endl;
cout<<"--------------------------------------------------------------------------"<<endl;
int func;
cin>>func;
if(func == 5) {a.~ItemList(); break;}
string uN, pN, iN, iW, itemname;
int iQ, delnumber;
switch (func) {
case 1:
cout<<"Please input the information listed in order, using space to separate:";
cout<<"User's name, User's phone number, Item names, Items want, Item quantity:"<<endl;
cin>>uN>>pN>>iN>>iW>>iQ;
a.add_item(uN, pN, iN, iW, iQ);
break;
case 2:
cout<<"Please input the number of the item you want to delete";
cout<<"(tip:you'd better confirm the number by using function 3 first):"<<endl;
cin>>delnumber;
a.delete_item(delnumber);
break;
case 3:
a.itemlist_display();
break;
case 4:
cout<<"Please input the item you want to search:"<<endl;
cin>>itemname;
a.item_search(itemname);
break;
default:
cout<<"Invalid choice, please input again:"<<endl;
break;
}
}
cout<<"Exit successfully, have a great day!"<<endl;
return 0;
}
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