Question

我使用结构创建了一个程序，用于创建学生档案（及其成绩）。我使用gets_s作为输入。当第一个学生必须填写时，一切都很顺利。然而，当第二个，第三个......学生填写问题时，它会跳过第一个输入询问他们的名字。

为什么？

这是一个示例输出： https://gyazo.com/78de2c20e48b4f7fc095e5568176f79c

#include <stdio.h>
#include <stdlib.h>

#define MAX_NAME_LENGHT 81
struct student new_student();
void print_student(const struct student *student);

struct student {
    char name[MAX_NAME_LENGHT];
    char first_name[MAX_NAME_LENGHT];
    int studentid;
    int year;
    double grades[5];
};

void main() {
    struct student student1, student2;
    student1 = new_student();
    student2 = new_student();
    print_student(&student1);
    print_student(&student2);
}

struct student new_student() {
    struct student student;
    char buffer[MAX_NAME_LENGHT];
    float score;

    printf("give your last name: ");            //gets lastname
    gets_s(student.name, sizeof(student.name)); 

    printf("give your first name: ");           //gets firstname
    gets_s(student.first_name, sizeof(student.first_name));

    printf("give your studentnumber: ");        //gets studentid
    gets_s(buffer, sizeof(buffer));
    student.studentid = atoi(buffer);

    printf("give your last completed year: ");  // adds years
    scanf_s("%i", &student.year);

    for (int i = 1; i <= student.year; ++i) {   //get grades per year
        printf("give your score of your %ie year: ", i);
        scanf("%f", &score);
        student.grades[i - 1] = score;
    }
    printf("\n");
    return student;
}

void print_student(const struct student *student) {
    printf("\nschool: \n");
    printf("\nName: %s", student->name);
    printf("\nFirst Name: %s", student->first_name);
    printf("\nstudentennummer: %i", student->studentid);
    printf("\nyear: %i", student->year);

    for (int i = 0; i<student->year; ++i)
        printf("\ngrades: %f", student->grades[i]);

    printf("\n");
}

gets_s无法正常工作

0 个答案: