[英]C++ Program need help to debug
#include <iostream>
#include <fstream>
#include <iomanip>
#include <stdlib.h>
using namespace std;
struct football_game
{
string visit_team;
int home_score;
int visit_score;
};
void printMenu();
int main()
{
int i, totalValues = 0;
ifstream inputFile;
string temp = "";
inputFile.open("games.txt");
if (!inputFile)
{
cout << "Error opening Input file!" << endl;
exit(101);
}
inputFile >> totalValues;
getline(inputFile, temp);
cout << " *** Football Game Scores *** " << endl << endl;
cout << " * Total Number of teams : " << totalValues << endl << endl;
football_game* records = new football_game[totalValues];
// while (!inputFile.eof())
// {// == NULL) {
for (i = 0; i < totalValues; i++)
{
getline(inputFile, records[i].visit_team);
cout << records[i].visit_team << endl;
inputFile >> records[i].home_score >> records[i].visit_score;
cout << records[i].home_score << " " << records[i].visit_score << endl;
getline(inputFile, temp);
}
//}
cout << endl;
int choice = 0;
int avg_home_Score = 0;
int avg_visit_Score = 0;
printMenu(); // prints menu
cout << "Please Enter a choice from the Menu : ";
cin >> choice;
cout << endl << endl;
while (true)
{
switch (choice)
{
case 1:
cout << " Score Table " << endl;
cout << " ***********************" << endl << endl;
cout << " VISIT_TEAM"
<< " "
<< " HIGH_SCORE"
<< " "
<< "VISIT_SCORE " << endl;
cout << " -----------"
<< " "
<< "-----------"
<< " "
<< "------------" << endl;
for (int i = 0; i < totalValues; i++)
{
cout << '|' << setw(18) << left << records[i].visit_team << " " << '|'
<< setw(7) << right << records[i].home_score << " " << '|' << setw(7)
<< right << records[i].visit_score << " " << '|' << endl;
}
cout << endl << endl << endl;
break;
case 2:
{
string team_name;
cout << "Enter the Team Name : ";
cin >> team_name;
for (int i = 0; i < totalValues; i++)
{
if (records[i].visit_team == team_name)
{
cout << " VISIT_TEAM"
<< " "
<< " HIGH_SCORE"
<< " "
<< "VISIT_SCORE " << endl;
cout << " -----------"
<< " "
<< "-----------"
<< " "
<< "------------" << endl;
cout << '|' << setw(18) << left << records[i].visit_team << " " << '|'
<< setw(7) << right << records[i].home_score << " " << '|'
<< setw(7) << right << records[i].visit_score << " " << '|'
<< endl;
}
}
cout << endl;
break;
}
case 3:
{
for (int i = 0; i < totalValues; i++)
avg_home_Score += records[i].home_score;
cout << "Average home_score: " << (avg_home_Score / totalValues) << endl << endl;
break;
}
case 4:
{
for (int i = 0; i < totalValues; i++)
avg_visit_Score += records[i].visit_score;
cout << "Average visit_score: " << (avg_visit_Score / totalValues) << endl << endl;
break;
}
default:
{
cout << "Please enter valid input !!" << endl;
break;
}
}
printMenu();
cin >> choice;
}
return 0;
}
void printMenu()
{
cout << " Menu Options " << endl;
cout << " ================ " << endl;
cout << " 1. Print Information of all Games[Table Form] " << endl;
cout << " 2. Print Information of a Specific Game " << endl;
cout << " 3. Print Average points scored by the Home Team during season" << endl;
cout << " 4. Print Average points scored against the Home Team" << endl << endl << endl;
}
这是我正在使用的输入文件
games.txt
5
SD Mines
21 17
Northern State
10 3
BYU
10 21
Creighton
14 7
Sam Houston State
14 24
当我在输出屏幕上使用第二个选项(特定游戏的打印信息)时,它要求我输入团队名称以及何时输入团队名称。 例如:SD Mines给我一个错误,但是当我输入团队名称时没有空格,例如:BYU,对我来说很好用。
cin >> team_name;
仅将输入占用空间。
您可能要使用cin.getline()将空格分隔的字符串作为输入。
一个演示相同内容的小程序:
#include <iostream>
#include <string>
int main ()
{
std::string name;
std::cout << "Please, enter your full name: ";
std::getline (std::cin,name);
std::cout << "Name is : , " << name << "!\n";
return 0;
}
std :: cin默认情况下忽略空格。
要在输入中包含空格,请尝试:
getline(cin, team_name);
这将拾取一行中的所有字符,直到按Enter。 这在
#include<string>
阅读choice
后,需要刷新std::cin
缓冲区 :
#include <limits>
//...
cin >> choice;
cin.clear();
cin.ignore(numeric_limits<streamsize>::max(), '\n');
请参阅此问题以获取详细说明。
另外,如果要从标准输入中读取带空格的字符串,请替换为:
cin >> team_name;
有了这个:
getline(cin, team_name);
正如其他答案中已经提到的那样。 这次无需刷新std::cin
,因为您已经阅读了整行。
最后,从您的games.txt
删除多余的换行符:
5
SD Mines
21 17
Northern State
...
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