定义并创建一个包含学生信息（学号，姓名，成绩）的顺序表，使其具有如下功能： (1）根据指定学生个数，逐个输入学生信息并以顺序结构存储； (2）逐个显示学生表中所有学生的相关信息； (3）根据姓名进行查找，返回此学生的学号和成绩； (4）根据指定的位置可返回相应的学生信息（学号，姓名，成绩)(5）给定一个学生信息，插入到表中指定的位置； (6）删除指定位置的学生记录； (7）统计表中学生个数

以Python语言为例，代码如下：

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

class StudentList:
    def __init__(self):
        self.students = []

    def add(self, student):
        self.students.append(student)

    def show_all(self):
        for student in self.students:
            print(student.id, student.name, student.score)

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

    def get_by_index(self, index):
        if index < 0 or index >= len(self.students):
            return None
        student = self.students[index]
        return (student.id, student.name, student.score)

    def insert(self, index, student):
        if index < 0 or index > len(self.students):
            return None
        self.students.insert(index, student)

    def delete(self, index):
        if index < 0 or index >= len(self.students):
            return None
        student = self.students.pop(index)
        return (student.id, student.name, student.score)

    def count(self):
        return len(self.students)

# 测试代码
student_list = StudentList()
n = int(input("请输入学生个数："))
for i in range(n):
    id = input("请输入学号：")
    name = input("请输入姓名：")
    score = float(input("请输入成绩："))
    student = Student(id, name, score)
    student_list.add(student)

student_list.show_all()

name = input("请输入要查找的姓名：")
result = student_list.search_by_name(name)
if result:
    print("学号：", result[0], "成绩：", result[1])
else:
    print("未找到该学生")

index = int(input("请输入要查找的位置："))
result = student_list.get_by_index(index)
if result:
    print("学号：", result[0], "姓名：", result[1], "成绩：", result[2])
else:
    print("未找到该学生")

id = input("请输入要插入的学号：")
name = input("请输入要插入的姓名：")
score = float(input("请输入要插入的成绩："))
student = Student(id, name, score)
index = int(input("请输入要插入的位置："))
student_list.insert(index, student)
student_list.show_all()

index = int(input("请输入要删除的位置："))
result = student_list.delete(index)
if result:
    print("学号：", result[0], "姓名：", result[1], "成绩：", result[2], "已删除")
else:
    print("未找到该学生")

print("学生个数：", student_list.count())