根据学号查询成绩和根据姓名查询成绩两种方法 c语言

以下是根据学号查询成绩的 C 语言代码：

#include <stdio.h>
#include <string.h>

struct student {
    char name[50];
    int id;
    float score;
};

int main() {
    int n, i, search_id;
    printf("Enter number of students: ");
    scanf("%d", &n);

    struct student students[n];

    for (i = 0; i < n; i++) {
        printf("\nStudent %d:\n", i + 1);
        printf("Enter name: ");
        scanf("%s", students[i].name);
        printf("Enter ID: ");
        scanf("%d", &students[i].id);
        printf("Enter score: ");
        scanf("%f", &students[i].score);
    }

    printf("\nEnter the ID of the student to search: ");
    scanf("%d", &search_id);

    for (i = 0; i < n; i++) {
        if (students[i].id == search_id) {
            printf("\nName: %s\n", students[i].name);
            printf("ID: %d\n", students[i].id);
            printf("Score: %.2f\n", students[i].score);
            break;
        }
    }

    if (i == n) {
        printf("\nNo student with ID %d found!\n", search_id);
    }

    return 0;
}

以下是根据姓名查询成绩的 C 语言代码：

#include <stdio.h>
#include <string.h>

struct student {
    char name[50];
    int id;
    float score;
};

int main() {
    int n, i, found = 0;
    char search_name[50];

    printf("Enter number of students: ");
    scanf("%d", &n);

    struct student students[n];

    for (i = 0; i < n; i++) {
        printf("\nStudent %d:\n", i + 1);
        printf("Enter name: ");
        scanf("%s", students[i].name);
        printf("Enter ID: ");
        scanf("%d", &students[i].id);
        printf("Enter score: ");
        scanf("%f", &students[i].score);
    }

    printf("\nEnter the name of the student to search: ");
    scanf("%s", search_name);

    for (i = 0; i < n; i++) {
        if (strcmp(students[i].name, search_name) == 0) {
            printf("\nName: %s\n", students[i].name);
            printf("ID: %d\n", students[i].id);
            printf("Score: %.2f\n", students[i].score);
            found = 1;
        }
    }

    if (!found) {
        printf("\nNo student with name %s found!\n", search_name);
    }

    return 0;
}