Python 练习 二

1：有一些四位数,百位数字都是3,十位数字都是6,并且它们既能被2整除,又能被3整除,求这样的四位数中最大的和最小的两数各是几?

num = []

for x in range(1000,10000):
	a = x % 1000 // 100
	b = x % 100 // 10
	if a == 3 and b == 6 and x % 6 == 0:
		num.append(x)
print(f"max num is{max(num)}")
print(f"min num is{min(num)}")

2：编程求一个四位自然数ABCD,它乘以A后变成DCBA

for x in range(1000,10000):
	a = x // 1000
	b = x % 1000 // 100
	c = x % 100 // 10
	d = x % 10

	y = d * 1000 + c * 100 + b * 10 + a

	if x * a == y:
		print(x)

3：用户输入两个数a、b。如果a能被b整除或a加b大于1000，则输出a；否则输出b。

a = int(input("enter a number"))
b = int(input("enter a number"))

if a % b == 0 or a + b > 1000:
	print(a)
else:
	print(b)

4：请输入一个数，判断这个数是偶数还是奇数，如果使用偶数，请判断从1到该数是3的倍数有哪些，如果是奇数，请判断从1到该数是5的倍数有哪些

a = int(input("enter a number"))
if a % 2 == 0:
	for k in range(1,a + 1):
		if k % 3 == 0:
			print(k,end=" ")
else:
	for k in range(1,a + 1):
		if k % 5 == 0:
			print(k,end=" ")

5：输入三边的长度，求三角形的面积和周长（海伦公式）

x = int(input("enter an edge of triangle "))
y = int(input("enter an edge of triangle "))
z = int(input("enter an edge of triangle "))

if x + y < z or x + z < y or y + z < x:
	print("please enter the right edge")
else:
	c = x + y + z
	p = c / 2
	s = pow(p * (p-x) * (p-y) * (p-z),0.5)

	print(f"面积:{s},周长:{c}")

6：某商店T恤的价格为35元/件（2件9折，3件以上8折）,裤子的价格为120 元/条（2条以上9折）.小明在该店买了3件T恤和2条裤子,请计算并显示小明应该付多少钱?

t = int(input("enter the number of t-shirts:"))
k = int(input("enter the number of trousers:"))

if t == 1:
	t_p = 35
elif t == 2:
	t_p = 35 * 0.9
elif t >= 3:
	t_p = 35 * 0.8

if k == 1:
	k_p = 120
elif k >= 2:
	k_p = 120 * 0.9

price = t * t_p + k * k_p
print(price)

7：鸡兔同笼，从上面看有35个头，从下面看有94只脚，请问鸡有几只，兔有几只？

for a in range(1,36):
	for b in range(1,36):
		if a + b == 35 and 2 * a + 4 * b == 94:
			print(f"鸡:{a},兔:{b}")

8：猜数字游戏（使用random模块完成）电脑随机一个范围内的数，用户输入数据判断，如果数大了，提供”数大了“，成功之后，加上用户是否继续功能

import random
x = random.randint(100,1000)
while True:
	y = int(input("please guess the number"))

	if y == x:
		print("you win")
		z = input("continue?(Y/N)")
		if z == "N" or z == "n":
			break
		else:
			x = random.randint(100,1000) 
	elif y > x:
		print("too big")
	elif y < x:
		print("too small")

9：猜拳游戏：石头、剪刀、布的游戏

import random
x = random.randint(0,2)
while True:
	y = int(input("please enter rock(0),scissor(1),paper(2)"))
	if x == 0:
		print("the cpu use rock")
		if y == x:
			print("draw")
		elif y == 1:
			print("you loss")
		elif y == 2:
			print("you win")
		break	
	if x == 1:
		print("the cpu use scissor")
		if y == x:
			print("draw")
		elif y == 0:
			print("you win")
		elif y == 2:
			print("you loss")
		break
	if x == 2:
		print("the cpu use paper")
		if y == x:
			print("draw")
		elif y == 0:
			print("you loss")
		elif y == 1:
			print("you win")
		break