c语言如何输入多个成绩

在C语言中输入多个成绩可以通过多种方法实现，以下是常见的几种方式：

一、使用数组存储成绩

静态数组

定义固定大小的数组，例如存储50个成绩：

```c

include

int main() {

int scores;

printf("输入50个成绩:n");

for (int i = 0; i < 50; i++) {

scanf("%d", &scores[i]);

}

printf("修改后的成绩为:n");

for (int i = 0; i < 50; i++) {

printf("第%d个成绩为:%dn", i + 1, scores[i]);

}

return 0;

}

```

这种方法简单直接，但需要提前确定成绩数量，且数组大小固定。

动态数组（使用指针）

通过指针操作实现动态输入：

```c

include

int main() {

int *ptr = NULL, *end;

int n = 50;

printf("输入%d个成绩:n", n);

for (ptr = &scores; ptr < &scores[n]; ptr++) {

scanf("%d", ptr);

}

printf("修改后的成绩为:n");

for (ptr = &scores; ptr < &scores[n]; ptr++) {

printf("第%d个成绩为:%dn", ptr - &scores + 1, *ptr);

}

return 0;

}

```

这种方法灵活，但需注意数组边界。

二、使用结构体存储多门课成绩

定义结构体来存储每个学生的多门课成绩：

```c

include

include

define MAX_STUDENTS 100

define NUM_COURSES 3

typedef struct {

int num;

int scores1;

int scores2;

int scores3;

struct student *next;

} Student;

Student *create_student() {

Student *new_student = (Student *)malloc(sizeof(Student));

scanf("%d %d %d", &new_student->num, &new_student->scores1, &new_student->scores2, &new_student->scores3);

new_student->next = NULL;

return new_student;

}

int main() {

Student *head = NULL;

int n = 10; // 输入学生数量

printf("输入%d个学生的成绩:n", n);

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

Student *new_student = create_student();

if (head == NULL) {

head = new_student;

} else {

Student *prev = head;

while (prev->next != NULL) {

prev = prev->next;

}

prev->next = new_student;

}

}

printf("学生成绩列表:n");

Student *current = head;

while (current != NULL) {

printf("学号: %d, 课程1: %d, 课程2: %d, 课程3: %dn", current->num, current->scores1, current->scores2, current->scores3);

current = current->next;

}

// 释放内存（省略）

return 0;

}

```

这种方法适合存储每个学生的多门课成绩，并支持动态添加学生。

三、其他方法

链表存储

使用链表动态添加成绩节点，适合频繁插入操作：

```c

include

include

typedef struct Node {

int score;

struct Node *next;

} Node;

Node *insert_score(Node head, int score) {

Node *new_node = (Node *)malloc(sizeof(Node));

new_node->score = score;

new_node->next = *head;

*head = new_node;

return new_node;

}

void print_scores(Node *head) {

Node *current = head;

while (current != NULL) {

printf("成绩: %dn", current->score);

current = current->next;

}

}

int main() {

Node *head = NULL;

int n = 10;

printf("输入10个成绩:n");

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

int score;

scanf("%d", &score);

head = insert_score(&head, score);

}

print_scores(head);

// 释放内存（省略）

return 0;

}

```

链表