-1
当我编译它时,它说studentGrades未初始化。那有什么问题?为什么程序给出错误?
#include <iostream>
using namespace std;
int takeGrade1(int *grades) {
int i, noStudents;
cout << "No of students: ";
cin >> noStudents;
grades = new int[noStudents];
for (i = 0; i < noStudents; i++) {
cout << "Enter the grade: ";
cin >> grades[i];
}
return noStudents;
}
int main() {
int *studentGrades, no, i;
no = takeGrade1(studentGrades);
cout << endl << "Grades: " << endl;
for (i = 0; i < no; i++)
cout << studentGrades[i] << endl;
delete[]studentGrades;
return 0;
}
您按照价值传递studentGrades。在takeGrade1()内改变它并不会改变main中的studentGrades。 – drescherjm
更改'int takeGrade1(int * grades)'为'int takeGrade1(int *&grades)' – drescherjm
为什么downvotes? “它说......”并不完全是一种最先进的错误描述,但是人们可以得到这张照片。 –