Python实现学生管理系统的示例代码
class Student:
def __init__(self, student_id, name, age, gender):
self.student_id = student_id
self.name = name
self.age = age
self.gender = gender
def display_info(self):
print(f"学号：{self.student_id}")
print(f"姓名：{self.name}")
print(f"年龄：{self.age}")
print(f"性别：{self.gender}")
class StudentManagementSystem:
def __init__(self):
self.students = []
def add_student(self, student):
self.students.append(student)
def remove_student(self, student_id):
for student in self.students:
if student.student_id == student_id:
self.students.remove(student)
print("删除成功！")
return
print("未找到学号对应的学生！")
def modify_student_info(self, student_id, name, age, gender):
for student in self.students:
if student.student_id == student_id:
student.name = name
student.age = age
student.gender = gender
print("修改成功！")
return
print("未找到学号对应的学生！")
def search_student_info(self, keyword):
for student in self.students:
if keyword in (student.student_id, student.name):
student.display_info()
def display_all_students(self):
if len(self.students) == 0:
print("系统中暂无学生信息！")
else:
for student in self.students:
student.display_info()
def save_students_info(self, filename):
with open(filename, "w") as file:
for student in self.students:
file.write(f"{student.student_id},{student.name},{student.age},{student.gender}
")
print("学生信息保存成功！")
def load_students_info(self, filename):
self.students = []
try:
with open(filename, "r") as file:
lines = file.readlines()
for line in lines:
student_data = line.strip().split(",")
student = Student(student_data[0], student_data[1], int(student_data[2]), student_data[3])
self.students.append(student)
print("学生信息加载成功！")
except FileNotFoundError:
print("找不到指定的学生信息文件！")