Python_HomeWork_Day02_2
Python_HomeWork_Day02_2
答案：
import math
print("输入a：")
a = float(input(">>>"))
print("输入b：")
b = float(input(">>>"))
print("输入c：")
c = float(input(">>>"))
s = b ** 2 - 4 * a * c
print("判别式的结果为：%f"%s)
if s>0:
print("方程有两个实根")
elif s == 0:
print("方程有一个实根")
elif s <0:
print("方程没有实根")
r1 =((-b) + math.sqrt(b ** 2 - 4 * a * c))/2 *a
r2 =((-b) - math.sqrt(b ** 2 - 4 * a * c))/2 *a
print("r1= %f"%r1)
print("r1= %f"%r2)
2.答案：
import numpy as np
num1 = np.random.randint(10,100)
num2 = np.random.randint(10,100)
print("%d %d"%(num1,num2))
print("用户随机输入这俩这数字之和:")
number = int(input(">>>"))
if number == num1 + num2:
print("True")
else:
print("False")
3.答案：
print("输入0~6数字：")
day = int(input(">>>"))
number = int(input(">>>"))
if day == 0:
print("今天是星期日")
print("%d后是星期%d"%(number,(day+number)%7))
elif day == 1:
print("今天是星期一")
print("%d后是星期%d"%(number,(day+number)%7))
elif day == 2:
print("今天是星期二")
print("%d后是星期%d"%(number,(day+number)%7))
elif day == 3:
print("今天是星期三")
print("%d后是星期%d"%(number,(day+number)%7))
elif day == 4:
print("今天是星期四")
print("%d后是星期%d"%(number,(day+number)%7))
elif day == 5:
print("今天是星期五")
print("%d后是星期%d"%(number,(day+number)%7))
elif day == 6:
print("今天是星期六")
print("%d后是星期%d"%(number,(day+number)%7))
4.答案：
l=[]
for i in range(3):
x=int(input("Integer:"))
l.append(x)
l.sort()
print(l)
5.答案：
print("比较两种大米的“性价比”，分别输入大米的重量和价钱：")
a1,a2 = map(float,(input(">>>").split()))
b1,b2 = map(float,(input(">>>").split()))
A = a2 /a1
B = b2 /b1
if A > B:
print("第一种大米合算")
elif B > A:
print("第二种大米合算")
elif:
print("都一样")
6.答案：
print("依次输入年份和月份")
years = int(input("年份>>>"))
month = int(input("月份>>>"))
if years % 4 ==0 and years%100 != 0 or years%400 != 0:
print("今年是闰年")
if month == 2:
print("这个月有28天")
elif month == 1 or 3 or 5 or 7 or 8 or 10 or 12:
print("这个月有31天")
else:
print("这个月共30天")
else:
print("今年是平年")
if month == 2:
print("这个月有29天")
elif month == 1 or 3 or 5 or 7 or 8 or 10 or 12:
print("这个月有31天")
else:
print("这个月共30天")
7.答案：
import numpy as np
print("用户猜硬币，0：正面，1：反面：")
res = np.random.randint(0,2)
print("%d"%res)
x = int(input("请输入0或者1："))
if x == int(res):
print("你猜对了")
else:
print("你猜错了")
8.答案:
# 和电脑玩见到石头布
import numpy as np
print("电脑剪刀石头布")
print("1.剪刀/2.石头/3.布")
print("请输入你的选择:")
X = int(input(">>"))
# res = np.random.choise(["剪刀"],["石头"],["布"])
res = np.random.randint(1,4)
while True:
if X ==1 and X == int(res):
print("电脑出：%d"%res)
print("平局")
elif X ==1 and int(res) == 2:
print("电脑出：%d"%res)
print("电脑胜利")
break
elif X== 1 and int(res) ==3:
print("电脑出：%d"%res)
print("你赢了")
break
elif X == 2 and X == int(res):
print("电脑出：%d"%res)
print("平局")
elif X == 2 and int(res) == 3:
print("电脑出：%d"%res)
print("电脑胜利")
break
elif X== 2 and int(res) == 1:
print("电脑出：%d"%res)
print("你赢了")
break
elif X == 3 and X == int(res):
print("电脑出：%d"%res)
print("平局")
elif X == 3 and int(res) == 1:
print("电脑出：%d"%res)
print("电脑胜利")
break
elif X== 3 and int(res) == 2:
print("电脑出：%d"%res)
print("你赢了")
break
答案：
year = int(input("请输入年份>>>"))
month = int(input("请输入月份(1-12)>>>"))
day = int(input("请输入这个月的某一天(1-31)>>>"))
if month == 1:
month =13
year -= 1
h = (day + (26 * (month + 1)/ 10) + (year%100) + ((year%100)/4) + ((year/100)/4) + 5* (year/100) )%7
elif month == 2:
month = 14
year -= 1
h = (day + (26 * (month + 1)/ 10) + (year%100) + ((year%100)/4) + ((year/100)/4) + 5* (year/100) )%7
else:
h = (day + (26 * (month + 1)/ 10) + (year%100) + ((year%100)/4) + ((year/100)/4) + 5* (year/100) )%7
h = h//1
print(h)
if h == 2:
print("今天是星期日")
elif h == 3:
print("今天是星期一")
elif h == 4:
print("今天是星期二")
elif h == 5:
print("今天是星期三")
elif h == 6:
print("今天是星期四")
elif h == 0:
print("今天是星期五")
elif h == 1:
print("今天是星期六")
10.答案：
import numpy as np
print("扑克牌的大小分别是：1（Area）、2、3、4、5、6、7、8、9、10、11（Jack）、12（Queen）、13（King）")
print("扑克牌的花色：1：梅花、2：红桃、3：方块、4：黑桃")
number = int(input("输入你选择的牌的大小:"))
# number1 = np.random.randint(1,14)
if number == 1:
print("你选择的是:Area")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 2:
print("你选择的是:2")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 3:
print("你选择的是:3")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 4:
print("你选择的是:4")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 5:
print("你选择的是:5")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 6:
print("你选择的是:6")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 7:
print("你选择的是:7")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 8:
print("你选择的是:8")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 9:
print("你选择的是:9")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 10:
print("你选择的是:10")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 11:
print("你选择的是:Jack")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 12:
print("你选择的是:Queen")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
elif number == 13:
print("你选择的是:King")
number2 = np.random.randint(1,5)
if number2 ==1:
print("梅花")
elif number2 ==2:
print("红桃")
elif number2 ==3:
print("方块")
else:
print("黑桃")
else:
print("请重新输入！！！")
11.答案：
number = float(input("判断是否是回文数,请输入一个三位整数:"))
number1 = number//100 #百位
number2 = number%10 #个位
number3 = (number - 100)//10 # 十位
if number1 == number2:
print("%d是一个回文数")
else:
print("%d不是回文数")
12.答案：
a = float(input("输入三角形的a边长:"))
b = float(input("输入三角形的b边长:"))
c = float(input("输入三角形的c边长:"))
if a+b>c and a+c>b and b+c>a:
print("能够成三角形")
print("三角形的周长是:%d"%(a+b+c))
else:
print("不能够成三角形")