开发者练习代码

def calculate_average(numbers):
    """计算列表中数字的平均值"""
    total = sum(numbers)
    average = total / len(numbers)
    return average

def reverse_string(string):
    """反转字符串"""
    reversed_string = string[::-1]
    return reversed_string

def is_prime(number):
    """判断一个数是否是质数"""
    if number < 2:
        return False
    for i in range(2, int(number/2) + 1):
        if number % i == 0:
            return False
    return True

def fibonacci_sequence(n):
    """生成斐波那契数列"""
    sequence = [0, 1]
    for i in range(2, n):
        next_number = sequence[i-1] + sequence[i-2]
        sequence.append(next_number)
    return sequence

# 测试代码
numbers = [1, 2, 3, 4, 5]
print(f"平均值: {calculate_average(numbers)}")

string = "Hello, World!"
print(f"反转后的字符串: {reverse_string(string)}")

number = 17
print(f"{number} 是否是质数: {is_prime(number)}")

n = 10
print(f"斐波那契数列的前 {n} 个数字: {fibonacci_sequence(n)}")