Homework02

1.解二元一次方程

def hanshu(a,b,c):gen = (b*b) - (4*a*c)if gen > 0 :r1 = (-b + gen**0.5) / 2*ar2 = (-b - gen**0.5) / 2*aprint("The root are {} and {}".format(r1,r2))elif gen == 0:r = (-b + gen**0.5) / 2*aprint("The root is {}".format(r))else:print("The equation has no real roots")
def start():a = float(input("Enter a:"))b = float(input("Enter b:"))c = float(input("Enter c:"))hanshu(a,b,c)
start()

2.学习加法

import random
def sum_(sum):a = random.randint(1,99)b = random.randint(1,99)if a+b == sum:print(True)else:print(False)
def start():sum = int(input("输入整数和>>>"))sum_(sum)
start()

3.找未来数据

def days(today,f_day):if today == 0:today = "Sunday"elif today ==1:today = "Monday"elif today ==2:today = "Tuesday"elif today ==3:today = "Wednesday"elif today ==4:today = "Thursday"elif today ==5:today = "Friday"elif today ==6:today = "Saterday"if f_day >7:if f_day % 7 == 0:f_day = "Sunday"elif f_day % 7 ==1:f_day = "Monday"elif f_day % 7 ==2:f_day = "Tuesday"elif f_day % 7 ==3:f_day = "Wednesday"elif f_day % 7 ==4:f_day = "Thursday"elif f_day % 7 ==5:f_day = "Friday"elif f_day % 7 ==6:f_day = "Saterday"else:if f_day == 0:f_day = "Sunday"elif f_day ==1:f_day = "Monday"elif f_day ==2:f_day = "Tuesday"elif f_day ==3:f_day = "Wednesday"elif f_day ==4:f_day = "Thursday"elif f_day  ==5:f_day = "Friday"elif f_day  ==6:f_day = "Saterday"print("Today is {} and the future day is {}".format(today,f_day))
def start():today = int(input("today:"))f_day = int(input("futureday:"))days(today,f_day)
start()

4.排序

def shu(a,b,c):d = [a,b,c]d.sort()print(d)
def start():a = int(input("Enter a:"))b = int(input("Enter b:"))c = int(input("Enter c:"))shu(a,b,c)
start()

5.比较价钱

def package(weight,weight1,price,price1):better = price / weightbetter1 = price1 /weight1if better > better1:print("Package 2 has the better price")else:print("Package 1 has the better price")
def start():weight = int(input("Enter weight and price for Package1:"))price = float(input())weight1 = int(input("Enter weight and price for Package2:"))price1 = float(input())package(weight,weight1,price,price1)
start()

6.找出一个月的天数

import calendar
def haha(month,year):print(calendar.monthrange(year,month)[1])
def start():month = int(input("month:"))year = int(input("year:"))haha(month,year)
start()

7.头或尾

import random
def yingbi(aa):nu = random.randint(0,1)if nu == aa:print("正确")else:print("错误")
def start():aa = int(input("0:正面，1：反面  >>>"))yingbi(aa)
start()

8.石头,剪刀，布

import random
def cai(me):computer = random.randint(0,2)print(computer)if me == computer:print("平局")else:if me == 0 and computer == 2:print("computer赢了")elif me == 1 and computer == 0:print("computer赢了")elif me == 2 and computer == 1:print("computer赢了")else:print("我赢了")
def start():me = int(input("0:剪刀，1：布，2：石头"))cai(me)
start()

9.一周星期几

def day(m,q,year):weekday = ['Saturday','Sunday','Monday','Tuesday','wednesday','Thursday','Friday']if m == 1:m = 13year = year - 1elif m ==2:m = 14year = year - 1h = int(q+((26*(m+1))//10)+(year%100)+((year%100)/4)+((year//100)/4)+5*year//100)%7day = weekday[h]print('Day of week is %s' %day)
def Start():year = int(input('input year:'))m = int(input('input month 1-12:'))q = int(input('the day of the month 1-31:'))day(m,q,year)Start()

10.选出一张牌

import random
def puke():shu = ["A",2,3,4,5,6,7,8,9,10,"Jack","Queen","King"]hua = ["梅花","红桃","方块","黑桃"]a = random.choice(shu)b = random.choice(hua)print("这张是{}{}".format(b,a))
puke()

11.回文数

def hui(a):ge = a % 10bai = a //100if ge == bai:print("是回文数！")else:print("不是回文数！")
def start():a = int(input("输入三位数："))hui(a)
start()

12.计算三角形周长

def tu(b1,b2,b3):a = b1+b2b = b1+b3c = b2+b3if a>b3 or b>b2 or c>b1:print("合法")C = b1 + b2 + b3print("周长为：%d" % C)else:print("非法输入")
def start():b1 = int(input("输入三角形的三条边"))b2 = int(input())b3 = int(input())tu(b1,b2,b3)
start()

13.循环播放音乐

import time
import pygame
import os
c = []
for dirs in os.walk(r'E:\CloudMusic'):for dir in dirs:c.append(dir)
for name in c[2]:file = "E:/CloudMusic/" + namepygame.mixer.init()print(name)track = pygame.mixer.music.load(file)if name == "薛之谦 - 我好像在哪见过你.mp3" or name == "薛之谦 - 木偶人.mp3":vip = input("你是VIP吗？[y/n]")if vip == "y":pygame.mixer.music.play()time.sleep(10)     #为了测试 因此只播放10秒pygame.mixer.music.stop() else:print("你不可以听这首歌，请注册VIP！！！")else:pygame.mixer.music.play()time.sleep(10)pygame.mixer.music.stop()
#1. 创建一个播放表单,运行就阔以听到美妙无比滴音乐.      √
#2. VIP设置才可以播放某些音乐,可以充值VIP          √
#3. 可以进行切歌和搜索音乐                         ×
#4. 单曲循环                                    ×  未完待续。。。。。。。哈哈哈哈哈哈哈哈哈哈

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