编写一个可查询，修改，删除，添加信息的程序，要能够储存学号，姓名，家庭住址，联系电话等信息

好的，我来为您解答这个问题。这个程序可以使用 Python 语言来编写，主要使用文件操作来实现信息的储存和修改。以下是一个简单的示例代码：

import os

class Student:
    def __init__(self, id, name, address, phone):
        self.id = id
        self.name = name
        self.address = address
        self.phone = phone

class StudentDB:
    def __init__(self, filename):
        self.filename = filename
        self.students = []
        self.load()

    def load(self):
        if not os.path.exists(self.filename):
            return
        with open(self.filename, 'r') as file:
            for line in file:
                id, name, address, phone = line.strip().split(',')
                self.students.append(Student(id, name, address, phone))

    def save(self):
        with open(self.filename, 'w') as file:
            for student in self.students:
                file.write(f"{student.id},{student.name},{student.address},{student.phone}\n")

    def add_student(self, id, name, address, phone):
        self.students.append(Student(id, name, address, phone))
        self.save()

    def update_student(self, id, name, address, phone):
        for student in self.students:
            if student.id == id:
                student.name = name
                student.address = address
                student.phone = phone
                self.save()
                return True
        return False

    def delete_student(self, id):
        for i, student in enumerate(self.students):
            if student.id == id:
                del self.students[i]
                self.save()
                return True
        return False

    def search_student(self, id):
        for student in self.students:
            if student.id == id:
                return student
        return None

    def get_all_students(self):
        return self.students

上述代码中，`Student` 类用于储存单个学生的信息，`StudentDB` 类用于储存所有学生的信息，包括从文件中读取和写入信息的方法。可以使用以下代码来测试：

db = StudentDB('students.txt')
db.add_student('001', 'Tom', 'Beijing', '123456789')
db.add_student('002', 'Jerry', 'Shanghai', '987654321')
db.update_student('002', 'Jerry', 'Nanjing', '987654321')
db.delete_student('001')
print(db.get_all_students())
print(db.search_student('002'))

这个程序可以储存学号、姓名、家庭住址、联系电话等信息，并且支持添加、修改、删除和查询学生信息。