实现从文本中读取出指定学号的学生信息并显示,文本文件存放格式是每一行对应一个学生信息,最后一行没有换行符。

以下是实现从文本中读取出指定学号的学生信息并显示的Python代码：

def get_student_info(student_id):
    with open('student.txt', 'r') as file:
        for line in file:
            info = line.strip().split(',')
            if info[0] == student_id:
                return info
    return None

student_id = input("请输入学号：")
student_info = get_student_info(student_id)
if student_info:
    print("学生信息：", student_info)
else:
    print("未找到该学生信息")

请注意，上述代码假设学生信息文件名为`student.txt`，每一行的格式为`学号,姓名,年龄,性别`。代码通过逐行读取文件内容，将每一行的信息按逗号分隔，并与输入的学号进行比较，如果找到匹配的学号，则返回该学生的信息。如果未找到匹配的学号，则返回None。

相关问题

实现从文本中读取出指定学号的学生信息并显示，文本文件存放格式是每一行对应一个学生信息，最后一行没有换符

你可以使用以下代码来实现从文本中读取出指定学号的学生信息并显示：

def get_student_info(student_id):
    with open('student.txt', 'r') as file:
        for line in file:
            info = line.strip().split('\t')
            if info[2] == student_id:
                return info
    return None

student_id = '123456'  # 指定学号
student_info = get_student_info(student_id)
if student_info:
    print("学生信息：")
    print("姓名：", student_info[0])
    print("年龄：", student_info[1])
    print("学号：", student_info[2])
    print("平均分：", student_info[3])
else:
    print("未找到该学号对应的学生信息")

c语言 实现从文本中读取出指定学号的学生信息并显示，文本文件存放格式是每一行对应一个学生信息，最后一行没有换行符

以下是使用C语言实现从文本中读取出指定学号的学生信息并显示的示例代码：

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

#define MAX_LENGTH 100

typedef struct {
    char name[MAX_LENGTH];
    int age;
    int studentID;
    float averageScore;
} Student;

void readStudentInfoFromFile(const char* filename, Student* students, int* numStudents) {
    FILE* file = fopen(filename, "r");
    if (file == NULL) {
        printf("Failed to open the file.\n");
        return;
    }

    char line[MAX_LENGTH];
    *numStudents = 0;

    while (fgets(line, sizeof(line), file)) {
        sscanf(line, "%s %d %d %f", students[*numStudents].name, &students[*numStudents].age, &students[*numStudents].studentID, &students[*numStudents].averageScore);
        (*numStudents)++;
    }

    fclose(file);
}

void displayStudentInfo(const Student* students, int numStudents, int studentID) {
    int i;
    for (i = 0; i < numStudents; i++) {
        if (students[i].studentID == studentID) {
            printf("Name: %s\n", students[i].name);
            printf("Age: %d\n", students[i].age);
            printf("Student ID: %d\n", students[i].studentID);
            printf("Average Score: %.2f\n", students[i].averageScore);
            return;
        }
    }

    printf("Student with ID %d not found.\n", studentID);
}

int main() {
    const char* filename = "student_info.txt";
    Student students[MAX_LENGTH];
    int numStudents;

    readStudentInfoFromFile(filename, students, &numStudents);

    int studentID;
    printf("Enter the student ID: ");
    scanf("%d", &studentID);

    displayStudentInfo(students, numStudents, studentID);

    return 0;
}