Python嵩天第二版版基础习题代码

1.1

str1 = input("请输入一个人的名字：")p
str2 = input("请输入一个国家的名字：")
print("世界这么大，{}想去{}康康。".format(str1,str2))

1.2

n = input("请输入正整数N：")
sum = 0
for i in range(int(n)+1):sum += i
print("1从N求和结果：", sum)

1.3

for i in range(1,10):for j in range(1,i+1):print("{}*{}={:2} ".format(j,i,i*j), end='')print('')

1.4

sum, tmp = 0, 1
for i in range(1,11):tmp *= i;sum += tmp
print("运算结果是：{}".format(sum))

1.5

n = 1
for i in range(5,0,-1):n = (n+1)*2
print(n)

1.6

diet = ['西红柿', '花椰菜', '黄瓜', '牛排', '虾仁']
for x in range(0, 5):for y in range(0, 5):if not(x == y):print("{}{}".format(diet[x], diet[y]))

1.7

from turtle import *
fillcolor("green")
begin_fill()
while True:forward(200)right(100)if abs(pos()) < 1:break
end_fill()
done()

1.8

from turtle import *
color('red', 'yellow')
begin_fill()
while True:forward(200)left(170)if abs(pos()) < 1:break
end_fill()
done()

2.2

money = input('请输入您要兑换的货币数额和符号：')
if money[-1] in ['$']:Y = 6 * eval(money[0:-1])print("你能兑换的人民币为：{}￥".format(Y))
elif money[-1] in ['￥']:M = eval(money[0:-1]) / 6print("你能兑换的美元为：{}$".format(M))
else:print('输入错误')

2.3

from turtle import *
setup(650,350,200,200)
penup()
fd(-250)
pendown()
pensize(25)
seth(-40)
Screen().colormode(255)
for i in range(4):pencolor(255-i*50,0+i*50,100+i*50)circle(40,80)pencolor(100+i*50,0+i*50,255-i*50)circle(-40,80)
circle(40,40)
fd(40)
circle(16,180)
fd(40*2/3)
done()

2.4

from turtle import *
for i in range(3):fd(200)seth(120+i*120)
done()

2.5

from turtle import *
for i in range(3):fd(30)seth(-120*(i+1))
seth(-120)
fd(30)
seth(0)
for i in range(3):fd(60)seth(120*(i+1))
done()

2.6

from turtle import *
for i in range(4):penup()fd(15)pendown()fd(60)penup()fd(15)left(90)
done()

2.7

from turtle import *
import math
seth(30)
for i in range(3):fd(300)right(120)penup()
goto(50*math.sqrt(3),-150)
pendown()
'''
这里也可以用以下方法：
seth(-30)
fd(100)
seth(-90)
fd(100)
seth(30)
'''
for i in range(3):fd(300)left(120)
done()

2.8

from turtle import *
for i in range(100):fd(i*2)left(90)
done()

2.9

from turtle import *
penup()
fd(-250)
pendown()
pencolor("red")
pensize(18)
seth(-40)
for i in range(4):circle(40,80)circle(-40,80)
circle(40,40)
fd(40)
circle(16,180)
fd(40*2/3)
penup()
goto(-250,0)
seth(0)
pendown()
pencolor("green")
seth(40)
for i in range(4):circle(-40,80)circle(40,80)
circle(-40,40)
fd(40)
circle(-16,180)
fd(40*2/3)
done()

3.1

G_d = int(input("请输入你在地球上的体重（kg）："))
for i in range(10):print("第{}在地球上的体重为{}kg，在月球上的体重为{}kg".format(i+1, G_d, G_d*0.165))G_d += 0.5

3.2

n = int(input("请输入你将连续学习多少天："))
value = 1
count = 0
for i in range(n):count += 1if 3 < count <= 7:value += 0.01 * valueelif count > 7:count = 0;
print("按照该模型连续学习{}天后，你的能力值为{}".format(n, value))

3.3

n = int(input("请输入你将学习多少天："))
m = int(input("请输入休息间隔："))
value = 1
count = 0
for i in range(n):count += 1if 3 < count <= 7:value += 0.01 * valueelif count > 7 or (i+1) % m == 0:count = 0;
print("按照该模型学习{}天后，你的能力值为{}".format(n, value))

3.4

h = input("请输入一串数字：")
j = True
for i in range(int(len(h)/2)):if h[i] != h[-i-1]:j = False
if j:print("该数为回文串")
else:print("该数非回文串")

3.5

a = "—— "
b = "+ "
c = "|"
d = " "
for i in range(11):if i % 5 == 0:print("{0}{1}{0}{1}{0}".format(b,a*4))else:print("{0}{1}{0}{1}{0}".format(c,d*13))

3.6

import time
for i in range(11):print("\rStarting {} Done!".format(i*'·'), end = '')time.sleep(0.5/(i+1))

3.7

while True:for i in ["/", "-", "|", "\\", "|"]:print("%s\r" % i, end = '')

3.8

from tqdm import tqdm
from time import sleep
for i in tqdm(range(1,100)):sleep(0.01)

4.1

from random import *
count = 0
n = randint(0, 9)
while True:count += 1m = eval(input("请输入一个整数："))if m == n:print("预测{}次，你猜中了！".format(count))breakelif m > n:print("遗憾，太大了")elif m < n:print("遗憾，太小了")

4.2

str = input("请输入一行字符串：")
kong, ying, shu, other = 0, 0, 0 ,0
for i in str:if i == ' ':kong += 1elif '0' <= i <= '9':shu += 1elif 'a' <= i <= 'z' or 'A' <= i <= 'Z':ying += 1else:other += 1
print("该字符串中英文字母个数为{}，数字个数为{}，空格数为{}，其它字符数为{}".format(ying, shu, kong, other))

4.3

def gcd(x, y):if y == 0:return xelse:return gcd(y, x % y)
n, m = map(int, input("请输入两个整数：").split())
print("这两数的最大公约数为{}，最大公倍数为{}".format(gcd(n, m), int(n * m / gcd(n, m))))

4.4

from random import *
count = 0
n = randint(0, 100)
while True:count += 1m = eval(input("请输入一个整数："))if m == n:print("预测{}次，你猜中了！".format(count))breakelif m > n:print("遗憾，太大了")elif m < n:print("遗憾，太小了")

4.5

from random import *
count = 0
n = randint(0, 100)
while True:count += 1try:m = eval(input("请输入一个整数："))if m == n:print("预测{}次，你猜中了！".format(count))breakelif m > n:print("遗憾，太大了")elif m < n:print("遗憾，太小了")except NameError:print("请输入整数")

4.6

from random import *
count_y = 0
count_n = 0
for i in range(100):m_1 = randint(0, 1)             #三个门随机生成初始值，0为羊，1为车if m_1 == 1:m_2, m_3 = 0, 0else:m_2 = randint(0, 1)if m_2 == 1:m_3 = 0else:m_3 = 1n = randint(1, 3)if n == 1:if m_1 == 1:count_n += 1else:count_y += 1elif n == 2:if m_2 == 1:count_n += 1else:count_y += 1else:if m_3 == 1:count_n += 1else:count_y += 1
print("不更换自己选择有{}%机会猜对，更换自己的选择有{}%机会猜对".format(count_n, count_y), end='')
print(",参赛者更换选择后{}增加猜对汽车的机会".format("能" if count_n < count_y else "不能"))

4.7

from random import *
try:count = 0n = randint(0, 9)while True:count += 1m = eval(input("请输入一个整数："))if m == n:print("预测{}次，你猜中了！".format(count))breakelif m > n:print("遗憾，太大了")elif m < n:print("遗憾，太小了")
except NameError as err:print(err)
except ValueError as err:print(err)
else:print("成功")
finally:print("结束")

5.1

def hui(x):a = "—— "b = "+ "c = "|"d = " "for i in range(11*x):if i % 5 == 0:for j in range(x):print("{0}{1}{0}{1}".format(b, a*4), end='')print("{}".format(b))else:if (i < 11*x-x+1):for j in range(x):print("{0}{1}{0}{1}".format(c, d*13), end='')print("{}".format(c))n: int = eval(input("输入N,代表将会输出NxN个田字格："))
hui(n)

5.2

def isOdd(x):return x % 2 != 0n: int = eval(input("请输入一个整数："))
print(isOdd(n))

5.3

def isNum(str):try:n = eval(str)return Trueexcept NameError as err:return Falseexcept SyntaxError as err:return isinstance(str, complex)s = input("请输入一串字符串：")
print(isNum(s))

5.4

def multi(a, *b):num = 1for i in b:num *= ireturn a * numprint(multi(1, 2, 3))

5.5

def isPrime(x):try:y = eval(x)if y == 2:return Trueelif y < 2:return Falsefor i in range(2, y):if y % i == 0:return Falsereturn Trueexcept NameError as err:return "输入错误{}，请输入整数：".format(err)n = input("请输入整数：")
print(isPrime(n))

5.6

from datetime import datetime
someday = datetime(2000, 10, 4)
print(someday.strftime("我的生日是%Y-%m-%d"))
print(someday.strftime("我的生日是%a %b %d %Y"))
print(someday.strftime("我的生日是%A %b %d %Y"))
print(someday.strftime("我的生日是%a %B %d %Y"))
print(someday.strftime("我的生日是%A %B %d %Y"))
print(someday.strftime("我的生日是{0:%Y}年，{0:%m}月，{0:%d}日".format(someday)))
print(someday.strftime("我的生日是%Y-%B-%d"))
print(someday.strftime("我的生日是%Y-%b-%d"))
print(someday.strftime("我的生日是%Y-%B-%A-%d"))
print(someday.strftime("我的生日是%Y-%b-%a-%d"))

5.7

def han_nuo(n, A, B, C):if n == 1:print("{}->{}".format(A, C))else:han_nuo(n-1, A, C, B)print("{}->{}".format(A, C))han_nuo(n-1, B, A, C)n: int = eval(input("请输入汉诺塔的层数："))
han_nuo(n, 'A', 'B', 'C')

6.1

import random
ls = []
for i in range(65, 91):ls.append(chr(i))
for i in range(97, 123):ls.append(chr(i))
for i in range(1,10):ls.append(i)
for i in range(10):ls2 = random.sample(ls, 8)s = ''for j in ls2:s += str(j)print("第{}个生成的密码为{}".format(i+1, s))

6.2

def check(ls):for i in range(len(ls)):for j in range(i+1, len(ls)):if ls[i] == ls[j]:return Truereturn Falsels = input().split()
if check(ls):print("有重复元素")
else:print("无重复元素")

6.3

def check(ls):s = set()for i in ls:n = len(s)s.add(i)if len(s) == n:return Truereturn Falsels = input().split()
if check(ls):print("有重复元素")
else:print("无重复元素")

6.4

import jieba
s = input("请输入字符串：")
s2 = jieba.lcut(s)
count = {}
for i in s2:count[i] = count.get(i, 0) + 1
items = list(count.items())
items.sort(key=lambda x:x[1], reverse=True)
for i in range(len(items)):word, count = items[i]if word != ' ':print("{:<10}{:>5}".format(word, count))

6.5

from random import *months = []
for i in range(1, 13):months.append(i)
days = []
for i in range(1, 32):days.append(i)
x = {1, 3, 5, 7, 8, 10, 12}
n = eval(input("请输入样本数量："))
count = 0
for j in range(n):end_m = []end_d = []for i in range(23):month = choice(months)months2 = set(months)day = choice(days)while month not in months2:if month == 2 and day > 28:day = choice(days)continueelif day == 31:day = choice(days)continueelse:breakend_m.append(month)end_d.append(day)counts = {}for i in range(23):s = ''s += str(end_m[i])s += str(end_d[i])counts[s] = counts.get(s, 0) + 1if counts[s] >= 2:count += 1break
print("概率为{}%".format(count/n*100))

6.6

import jieba
text = open(r"C:绝对路径\\红楼梦.txt", "r", encoding="utf-8").read()
words = jieba.lcut(text)
counts = {}
excludes = {"什么","一个","我们","那里","你们","如今","说道","知道","起来","姑娘","这里","出来","他们","众人","自己","一面","只见","怎么","奶奶","两个","没有","不是","不知","这个","听见","这样","进来","咱们","告诉","就是","东西","袭人","回来","只是","大家","只得","老爷","丫头","这些","不敢","出去","所以","不过","的话","不好","姐姐","探春","鸳鸯","一时","不能","过来","心里","如此","今日","银子","几个","答应","二人","还有","只管","这么","说话","一回","那边","这话","外头","打发","自然","今儿","罢了","屋里","那些","听说","小丫头","不用","如何","-----------------------","问道","人家","看见","妹妹","媳妇","到底","不得","原来","一声","这会子",}
for word in words:if len(word) == 1:continueelse:counts[word] = counts.get(word, 0) + 1
for word in excludes:del(counts[word])
items = list(counts.items())
items.sort(key=lambda x:x[1], reverse=True)
for i in range(20):word, count = items[i]print("{:<10}{:>5}".format(word, count))

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Python嵩天第二版版基础习题代码

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