Question

我无法理解我收到的这个错误。这个任务的目的是创建一个程序，打印出13个学校团队，他们的记录，然后打印出胜率超过.500的团队。尝试处理wins_teams函数时，我的main函数内部会发生错误。

exit status 1
/tmp/ccSw87Of.o: In function `main':
main.cpp:(.text+0x8ea): undefined reference to `winning_teams(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, double, double, double)'
collect2: error: ld returned 1 exit status

这是我的代码！如果可以，请帮助

#include <iostream>
#include<string>
using namespace std;

struct Team 
{
  string name;
  int wins;
  int losses;
};



double win_percentage (string , double , double );
void wins_losses (string , double , double , double );
void winning_teams (string , double , double , double );

int main(){
  int const NUM = 13;

  Team school[NUM]= {
    {"Bethune-Cookman", 11, 3}, {"Coppin State", 5, 9}, {"Delaware State", 1, 13},{"Florida A&M", 6, 8},{"Hampton", 11, 4},{"Howard", 6, 8},{"Maryland Eastern Shore", 2, 12},{"Morgan State", 6, 8},{"North Carolina A&T", 10, 4}, {"North Carolina Central", 8, 6},{"Norfolk State", 10, 4},{"Savannah State", 10, 4},{"South Carolina State", 6, 8}};

  cout<< "MEAC MENS BASKETBALL TEAMS CONFERENCE STANDINGS"<< endl;

  for (int i = 0; i<NUM; i++){

     cout<< school[i].name<<" "<<school[i].wins<<"-"<<school[i].losses<< endl;

    cout<<"TEAMS WINNING PERCENTAGE"<<endl;
    win_percentage(school[i].name,school[i].wins,school[i].losses);

    cout<<"TEAMS WITH WINNING RECORDS"<<endl;

    wins_losses(school[i].name,school[i].wins,school[i].losses, win_percentage(school[i].name,school[i].wins,school[i].losses));

    winning_teams(school[i].name,school[i].wins,school[i].losses,win_percentage(school[i].name,school[i].wins,school[i].losses));
  }
  return 0;
}

double win_percentage(string a, double b, double c){
  double x;
  x = (b/(b+c));
  return x;
  cout<< a<<" "<<x<<endl;

}
void wins_losses( string e, double f, double g, double h){

   cout<< e<< "Record is"<<f<<"-"<<g<< h<<endl;
}
void winning_teams(string w, int f, int y, double z){
  if ( z >.500){
    cout<< w<<" "<<f<< "-"<<y<< " "<< z<< endl;


  }
}

Answer 1

在你的wins_teams声明中，函数参数列表是string，double，double，double！但是在你的定义中，它是不同的，即string，int，int，double！

由于函数定义不匹配，它会抛出错误！

可能的解决方案：

void winning_teams(string w, double f, double y, double z){
if ( z >.500){
cout<< w<<" "<<f<< "-"<<y<< " "<< z<< endl;}

main.cpp :(。text + 0x8ea）：在C ++中的未定义引用

1 个答案: