有趣的python代码合集

以下是一些有趣的 Python 代码：

1. 将输入的字符串反转

string = input("Enter a string: ")
print(string[::-1])

2. 输出斐波那契数列的前 n 项

n = int(input("Enter the number of terms: "))

n1, n2 = 0, 1
count = 0

if n <= 0:
   print("Please enter a positive integer")
elif n == 1:
   print("Fibonacci sequence upto",n,":")
   print(n1)
else:
   print("Fibonacci sequence:")
   while count < n:
       print(n1)
       nth = n1 + n2
       n1 = n2
       n2 = nth
       count += 1

3. 判断一个数是否为质数

num = int(input("Enter a number: "))

if num > 1:
   for i in range(2,num):
       if (num % i) == 0:
           print(num,"is not a prime number")
           break
   else:
       print(num,"is a prime number")

else:
   print(num,"is not a prime number")

4. 生成一个随机密码

import random
import string

length = int(input("Enter the length of password: "))
characters = string.ascii_letters + string.digits + string.punctuation

password = ''.join(random.choice(characters) for i in range(length))
print("Random password is:", password)

5. 使用 Turtle 绘制彩色螺旋线

import turtle
colors = ["red", "purple", "blue", "green", "orange", "yellow"]
t = turtle.Pen()
turtle.bgcolor("black")
for x in range(360):
    t.pencolor(colors[x%6])
    t.width(x/100 + 1)
    t.forward(x)
    t.left(59)