python中sort()方法的几个问题

numbers = [5, 2, 8, 3, 1]
numbers.sort()
print(numbers)  # 输出结果为[1, 2, 3, 5, 8]

students = [{'name': 'Alice', 'score': 80}, {'name': 'Bob', 'score': 90}, {'name': 'Charlie', 'score': 70}]
students.sort(key=lambda x: x['score'], reverse=True)
print(students)  # 按照分数降序排列，输出结果为[{'name': 'Bob', 'score': 90}, {'name': 'Alice', 'score': 80}, {'name': 'Charlie', 'score': 70}]