cin.Getline在for循环中出错

好的，我正在尝试做这个程序，我必须让用户输入学生姓名，然后输入他们的考试成绩。我试着设置它，这样我就会有一个名字数组和一个成绩数组。我在向数组中添加名字时遇到了麻烦。我尝试在for循环中调用cin.getline()并将其分配给数组中的每个下标。然而，它失败得很惨。有人能给我指个正确的方向吗?

#include<iostream>
#include<iomanip>
#include<string>
using namespace std;
//Function prototypes
void sort(double*, int);
double average(double*, int);
void drop(double*, int);
int main()
{   
    char ch;
    char name[30];
    int numTestScores;
    string *studentNames;
    double *testScorePtr;
    double testAverage;
    //Get the number of test scores.
    cout << "nHow many test scores will you enter? ";
    cin >> numTestScores;
    //Validate the input.
    /*while (numTestScores < 0)
    {
        cout << "The number cannot be negative.n";
        cout << "Enter another number: ";
        cin >> numTestScores;
    }*/
    // Allocate an array to hold the test scores
    studentNames = new string[numTestScores];
    testScorePtr = new double[numTestScores];
    //Fill the array with test scores.
    for(int i = 0; i < numTestScores; i++)
    {

        cout << "Enter name and test score for test # "
        << (i+1) << " : "<< endl;
        cin.getline(name,30);
        studentNames[i] = name;
        cout << studentNames[i] <<endl; //I tried to use this to see if the names were going into the array



        cin.get();
    }
        //Get a test score.
        //cout << "Enter test score "
            //<< (i + 1) << ": ";
        //cin >> testScorePtr[i];
        //Validate the input.
        /*while (numTestScores < 0)
        {
            cout << "Negative scores are not allowed.n";
            cout << "Enter another score for this test: ";
            cin >> testScorePtr[i];*/



    // Sort the test scores.
    sort(testScorePtr, numTestScores);

    //Display the resulting data.
    cout << "nThe test scores in ascending "
        << "order, and their average, are:nn";
    cout << "Score" <<endl;
    cout << "----" <<endl;
    for (int j = 0; j < numTestScores; j++)
    {
        cout << "n" << fixed << setprecision(2)
             << setw(6) << testScorePtr[j];
    }
    //Drop The Lowest Grade
    drop(testScorePtr, numTestScores);

// Get the average of the test scores.
    testAverage = average(testScorePtr, numTestScores);

    cout << "nnAverage score: " << setprecision(2) << fixed << testAverage <<endl <<endl;
//  Free the dynamically-allocated memory.
    delete [] testScorePtr;
    testScorePtr = 0;
    return 0;
}

    //****************************************
    //Function sort
    //This function performs a selection sort
    //on the array pointed to by the score
    //parameter into ascending order. The size
    //parameter holds the number of elements.
    //*****************************************
    void sort(double* score, int size)
    { 
      int startScan, minIndex;
      double minValue;
      for (startScan = 0; startScan < (size - 1); startScan++)
      {
          minIndex = startScan;
          minValue = score[startScan];
          for(int index = startScan + 1; index < size; index++)
          {
              if (score[index] < minValue)
              {
                  minValue = score[index];
                  minIndex = index;
              }
          }
          score[minIndex] = score[startScan];
          score[startScan] = minValue;
      }
    }
    void drop(double* score, int size)
    {
        score[0] = 0;
    }
    //*************************************************
    //Function average
    //This function calculates and returns the 
    //average of the values stored in the array
    //passed into the scores parameter. The
    //parameter numScors holds the number of elements in the array
    double average(double* score, int numScores)
    {
        double total = 0; //Accumulator
        numScores--;
        //Calculate the total of the scores.
        for (int k = 0; k <= numScores ; k++)
        {
            total += score[k];
        }
        //Return the average score.
        return (total/numScores);
    }