我的代码问题与我的函数有关。此代码是会议中足球运动员的一个非常基本的 UI 菜单。当我对代码进行重大更改时，问题就出现了。最初，我的添加、搜索、更新和删除功能都保存在一个唯一的头文件“player.h”中，然后将其包含在我的 main.cpp 文件中。我遇到的错误是当我使用这些函数并将它们移动到我的 int main() 下方时。我收到所有 4 个函数的标识符未找到错误。请指教
#include <iostream>
using namespace std;
int const SIZE = 20;
int playerCount = 0;
int option;
string names[SIZE];
int ID[SIZE];
string schools[SIZE];
string nationality[SIZE];
int main()
{
cout << "Welcome to Ultimate Soccer Database" << endl;
cout << endl << "This is the complete database of all College in the WHAC." << endl;
cout << endl << "Currently we only have players from LTU" << endl;
while (1)
{
cout << "**********************************" << endl;
cout << "1. Add Player" << endl;
cout << "2. Search Player" << endl;
cout << "3. Update Player" << endl;
cout << "4. Delete Player" << endl;
cout << "5. Exit" << endl;
cout << "**********************************" << endl;
cout << "Enter your option : ";
cin >> option;
cout << "\n";
if (option == 1)
{
add();
}
else if (option == 2)
{
search();
}
else if (option == 3)
{
update();
}
else if (option == 4)
{
delete_player();
}
else if (option == 5)
{
break;
}
cout << "\n\n";
}
return 0;
}
void add()
{
std::cout << "--------> Enter name : ";
std::cin >> names[playerCount];
std::cout << "--------> Enter ID : ";
std::cin >> ID[playerCount];
std::cout << "--------> Enter school : ";
std::cin >> schools[playerCount];
std::cout << "--------> Enter nationality : ";
std::cin >> nationality[playerCount];
playerCount++;
}
void search()
{
int id;
cout << "Enter ID : ";
cin >> id;
bool found = false;
for (int i = 0; i < playerCount; i++)
{
if (ID[i] == id)
{
cout << "Player Found" << endl;
cout << "--------> ID : " << ID[i] <<
"\n--------> Name : " << names[i] <<
"\n--------> School : " << schools[i] <<
"\n--------> Nationality : " << nationality[i];
found = true;
break;
}
}if (!found)
{
cout << "-------->Player not found" << endl;
}
}
void update()
{
int id;
string school;
cout << "Enter ID : ";
cin >> id;
cout << "Enter new school : ";
cin >> school;
bool found = false;
for (int i = 0; i < playerCount; i++)
{
if (ID[i] == id)
{
schools[i] = school;
cout << "--------> Player school updated" << endl;
found = true;
break;
}
}
if (!found)
{
cout << "--------> Player not found" << endl;
}
}
void delete_player()
{
int id;
cout << "Enter ID : ";
cin >> id;
bool found = false;
for (int i = 0; i < playerCount; i++)
{
if (ID[i] == id)
{
for (int j = i; j < playerCount - 1; j++)
{
ID[j] = ID[j + 1];
names[j] = names[j + 1];
schools[j] = schools[j + 1];
nationality[j] = nationality[j + 1];
}
playerCount--;
cout << "--------> Player deleted" << endl;
found = true;
break;
}
}
if (!found)
{
cout << "--------> Player not found" << endl;
}
}
