以下是20个常用的Python脚本示例：

1. 计算阶乘

def factorial(n):if n == 0:return 1else:return n * factorial(n-1)print(factorial(5))

2. 斐波那契数列

def fibonacci(n):if n <= 1:return nelse:return fibonacci(n-1) + fibonacci(n-2)print(fibonacci(10))

3. 判断素数

def is_prime(n):if n <= 1:return Falsefor i in range(2, int(n**0.5) + 1):if n % i == 0:return Falsereturn Trueprint(is_prime(7))

4. 字符串反转

def reverse_string(s):return s[::-1]print(reverse_string("hello"))

5. 字符串大小写转换

def convert_case(s, case):if case == "upper":return s.upper()elif case == "lower":return s.lower()else:return sprint(convert_case("Hello", "lower"))

6. 字符串替换

def replace_string(s, old, new):return s.replace(old, new)print(replace_string("hello world", "world", "python"))

7. 列表排序

def sort_list(lst):return sorted(lst)print(sort_list([3, 1, 4, 2]))

8. 列表去重

def remove_duplicates(lst):return list(set(lst))print(remove_duplicates([1, 2, 2, 3, 4, 4]))

9. 列表合并

def merge_lists(lst1, lst2):return lst1 + lst2print(merge_lists([1, 2, 3], [4, 5, 6]))

10. 列表切片

def slice_list(lst, start, end):return lst[start:end]print(slice_list([1, 2, 3, 4, 5], 1, 4))

11. 字典键值对调换

def swap_dict(d):return {v: k for k, v in d.items()}print(swap_dict({"a": 1, "b": 2, "c": 3}))

12. 计算圆的面积和周长

import mathdef circle_area_circumference(radius):area = math.pi * radius**2circumference = 2 * math.pi * radiusreturn area, circumferenceprint(circle_area_circumference(5))

13. 计算两个数的最大公约数和最小公倍数

def gcd_lcm(a, b):gcd = a if b == 0 else gcd_lcm(b, a % b)lcm = a * b // gcdreturn gcd, lcmprint(gcd_lcm(12, 18))

14. 计算矩阵乘法

def matrix_multiply(A, B):return [[sum(a * b for a, b in zip(row_A, col_B)) for col_B in zip(*B)] for row_A in A]print(matrix_multiply([[1, 2], [3, 4]], [[5, 6], [7, 8]]))

15. 计算阶乘和

def factorial_sum(n):return sum(range(1, n+1))print(factorial_sum(5))

16. 生成斐波那契数列的前n项

def generate_fibonacci(n):return [fibonacci(i) for i in range(n)]print(generate_fibonacci(10))

17. 生成随机数列表

import randomdef generate_random_list(n, start, end):return [random.randint(start, end) for _ in range(n)]print(generate_random_list(5, 1, 10))

18. 生成九九乘法表

def print_multiplication_table():for i in range(1, 10):for j in range(1, i+1):print(f"{j}x{i}={i*j}", end="\t")print()print_multiplication_table()

19. 生成随机密码

import random
import stringdef generate_password(length):return ''.join(random.choices(string.ascii_letters + string.digits, k=length))print(generate_password(8))

20. 生成随机字符串

import random
import stringdef generate_random_string(length):return ''.join(random.choices(string.ascii_letters, k=length))print(generate_random_string(8))