Question

我非常困惑。我必须遵循以下特定准则：

制作一个程序，该程序将计算并输出用户输入的10个考试成绩的平均值。完成功能，以便主电源正常工作。也可以随意修改主体。我不认为我们需要更改主变量，也不相信应该使用10个变量。这是我必须添加的代码，我相信主体已经完成。非常感谢您的帮助！!!!

#include <iostream>
using namespace std;

 NOT ADD CODE HERE!!!   
float calculateAverageTestScore(int amountOfScores);

int main(void) 
{
  const int NUMBER_OF_SCORES = 10;

  cout << "The average test score was: " << calculateAverageTestScore(NUMBER_OF_SCORES) << endl;

  return 0;
}



//INPUT: an amount of test scores 
//OUTPUT: the average of these scores 
//This function will obtain amountOfScores test scores from the user, and return
//their average - to be used elsewhere.
float calculateAverageTestScore(int amountOfScores)
{
  float average;

  //add code here 



   return average;
}

Answer 1

应该做到这一点。

#include <iostream>
#include <string>

float calculateAverageTestScore(int amountOfScores);

int main() {
  const int NUMBER_OF_SCORES = 10;
  const float score = calculateAverageTestScore(NUMBER_OF_SCORES);
  std::cout << "The average test score was: " << score << '\n';
}

float calculateAverageTestScore(int amountOfScores) {
  float sum = 0;

  std::string buffer;
  for (int i = 0; i < amountOfScores; ++i) {
    std::cout << "score #" << i + 1 << ": ";
    std::getline(std::cin, buffer);
    sum += std::stof(buffer); // TODO: Error handling
  }

  return sum / amountOfScores;
}

不确定如何使用功能，必须遵循特定准则

1 个答案: