我建議你使用一個std::vector,因爲你有很多球隊。
#include <iostream>
#include <vector>
#include <string>
#include <fstream>
using namespace std;
class Team
{
public:
string name;
string dificulty;
string section;
};
void GetTeamInfo(vector<Team>& ko_v);
int main()
{
vector<Team> ko; // a vector of Teams
GetTeamInfo(ko); // read from file inside a vector
// print every team
for(unsigned int i = 0; i < ko.size(); ++i) {
cout << ko[i].name << " ";
cout << ko[i].dificulty<< " ";
cout << ko[i].section<< " ";
cout << "\n";
}
//system("PAUSE"); // don't use system()
return 0; // return 0 should be placed at the end of main
}
void GetTeamInfo(vector<Team>& ko_v) // you had an extra parameter here, no need to
{
ifstream fd;
fd.open("Team.txt");
if (fd.is_open()) // check if file is open
{
while (!fd.eof()) // while you have more to read
{
Team ko; // create a Team
fd >> ko.name; // read data
fd >> ko.dificulty;
fd >> ko.section;
ko_v.push_back(ko); // store that Team in the vector of teams
}
}
else
{
cout << "File not opened!\n";
}
}
爲什麼不使用數組?你當然可以使用數組,但由於這是C++,所以鼓勵使用std :: vector的用法。此外,您不必擔心要從文件中讀取的Team
的數量。如果你想使用一個數組,你應該知道apriori的數量,或者動態分配內存。
Why not use system(pause); ?
只是爲了一目瞭然,我修改與使用陣列的例子。
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
class Team
{
public:
string name;
string dificulty;
string section;
};
void GetTeamInfo(Team* ko_ar, const int N);
int main()
{
const int N = 3; // number of teams in the file
Team ko[N]; // a vector of Teams
GetTeamInfo(ko, N); // read from file inside a vector
// print every team
for(int i = 0; i < N; ++i) {
cout << ko[i].name << " ";
cout << ko[i].dificulty<< " ";
cout << ko[i].section<< " ";
cout << "\n";
}
//system("PAUSE"); // don't use system()
return 0; // return 0 should be placed at the end of main
}
void GetTeamInfo(Team* ko_ar, const int N)
{
ifstream fd;
fd.open("Team.txt");
int i = 0;
if (fd.is_open()) // check if file is open
{
while (!fd.eof()) // while you have more to read
{
Team ko; // create a Team
fd >> ko.name; // read data
fd >> ko.dificulty;
fd >> ko.section;
if(i == N) {
cout << "Read more than " << N << " teams\n";
break;
}
ko_ar[i++] = ko; // store that Team in the vector of teams
}
}
else
{
cout << "File not opened!\n";
}
cout << "Read " << i << " teams\n";
}
嘗試使用數組。 – d3L 2014-09-29 13:51:03
如何在這裏使用數組? – Blank 2014-09-29 14:37:02
如果有3個以上的團隊會怎麼樣?像一次10人隊其他25人?隨機。 – Blank 2014-09-29 15:16:21