python 的判断语句练习题

目录

demo19

 demo20

demo 21 

demo 22 

demo 23

demo 24

demo 25

demo 26

 demo 27

demo 28

demo 29

demo 30

demo 31

demo 32

demo 33

demo 34

 demo 35

demo 36

---

demo19

 

Set1 = "1\t3\t5\t7\n"\
       "9\t11\t13\t15\n"\
       "17\t19\t21\t23\n"\
       "25\t27\t29\t31\t"
Set2 = "2\t3\t6\t7\n"\
       "10\t11\t14\t15\n"\
       "18\t19\t22\t23\n"\
       "26\t27\t30\t31\t"
Set3 = "4\t5\t6\t7\n"\
       "12\t13\t14\t15\n"\
       "20\t21\t22\t23\n"\
       "28\t29\t30\t31\t"
Set4 = "8\t9\t10\t11\n"\
       "12\t13\t14\t15\n"\
       "24\t25\t26\t27\n"\
       "28\t29\t30\t31\t"
Set5 = "16\t17\t18\t19\n"\
       "20\t21\t22\t23\n"\
       "24\t25\t26\t27\n"\
       "28\t29\t30\t31\t"
day = 0
print(Set1)
a = int(input("看表中是否有与你生日的数字，有的话输入 1 ，没有输入 2:"))
if a == 1:
	day = day+1
print(Set2)
b = int(input("看表中是否有与你生日的数字，有的话输入 1 ，没有输入 2:"))
if b == 1:
	day = day+2
print(Set3)
c = int(input("看表中是否有与你生日的数字，有的话输入 1 ，没有输入 2:"))
if c == 1:
	day = day+4
print(Set4)
d = int(input("看表中是否有与你生日的数字，有的话输入 1 ，没有输入 2:"))
if d == 1:
	day = day+8
print(Set5)
e = int(input("看表中是否有与你生日的数字，有的话输入 1 ，没有输入 2:"))
if e == 1:
	day = day+16
print(day)

运行结果：

 

 demo20

a = float(input("请输入以榜为单位的体重："))
b = float(input("请输入以英尺为单位的身高："))
BMI = (a*0.4535937)/(b*0.0254)
if BMI >= 30.0:
	print("痴胖")
elif BMI >=25.0:
	print("超重")
elif BMI >= 18.5:
	print("标准")
else:
	print("超轻")

 运行结果：

demo 21 

year = int(input("请输入一个年份："))
if (year%4==0 and year%100!=0) or year%400==0:
	print("%s是闰年"%year)
else:
	print("%s不是闰年"%year) 

 运行结果：

demo 22 

 

from random import randint
a=randint(10,99)
b = int(input("请输入一个两位的数字："))
c = a%10
d = a//10
if d == b//10 and c ==b%10:
	print("恭喜获得奖金10000美元")
elif (d == b//10 or d ==b%10) and (c == b//10 or c ==b%10):
	print("恭喜获得奖金3000美元")
elif d == b//10 or d ==b%10 or c ==b//10 or c ==b%10:
	print("恭喜获得奖金1000美元")
else:
	print("没中奖")

运行结果： 

demo 23

 

import math
a,b,c = map(float, input("enter a,b,c:").split())
panduan = b*b - 4*a*c
if panduan > 0:
	r1 = (-b+ math.sqrt(panduan))/2*a
	r2 = (-b- math.sqrt(panduan))/2*a
	print("The roots are %s and %s "%(r1,r2))
elif panduan ==0 :
	r1 = (-b+ math.sqrt(panduan))/2*a
	print("The roots are %s"%(r1))
elif panduan <0:
	print("没有值")

 

 运行结果：

demo 24

 

a,b,c,d,e,f = map(float, input("enter a,b,c,d,e,f:").split())
if (a*d-b*c)==0:
	print("The equation has no solution")
else:
	x=(e*d-b*f)/(a*d-b*c)
	y=(a*f-e*c)/(a*d-b*c)
	print("x is %s and y is %s"%(x,y))

运行结果：

 

demo 25

 

dct={1:'Monday',2:'Tuesday',3:'Wednesday',4:'Thursday',5:'Friday',6:'Saturday',7:'Sunday'}

today = int(input("输入今天的日期以数字表示:"))
a = int(input("请输入要经过多少天:"))
if (today + a) % 7 == 0:
    print("Today is %s and the future day is 星期天"%dct.get(today))
elif (today + a) % 7 == 1:
    print("Today is %s and the future day is 星期一"%dct.get(today))
elif (today + a) % 7 == 2:
    print("Today is %s and the future day is 星期二"%dct.get(today))
elif (today + a) % 7 == 3:
    print("Today is %s and the future day is 星期三"%dct.get(today))
elif (today + a) % 7 == 4:
    print("Today is %s and the future day is 星期四"%dct.get(today))
elif (today + a) % 7 == 5:
    print("Today is %s and the future day is 星期五"%dct.get(today))
elif (today + a) % 7 == 6:
    print("Today is %s and the future day is 星期六"%dct.get(today))

 运行结果：

demo 26

 

a1, a2 = eval(input("请输入第一种所购产品的重量和价格:") )
b1, b2 = eval(input("请输入第二种所购产品的重量和价格:") )
if (a2 / a1) > (b2 /b1):
    print("包装二产品更好")
elif (a2 / a1) == (b2 /b1):
    print("两种产品一样好")
elif (a2 / a1) < (b2 /b1):
    print("包装一产品更好")

 运行结果：

 demo 27

 

a = int(input("请输入一个整数："))
if a % 5 == 0 and a % 6 == 0:
    print("%d这个数能被5和6都整除"%a)
elif a % 5 != 0 and (a % 6 == 0):
    print("%d这个数能被6整除,但不能被5整除"%a)
elif (a % 5 == 0) and (a % 6 != 0):
    print("%d这个数能被5整除,但不能被6整除"%a)
elif (a % 5 != 0) and (a % 6 != 0):
    print("%d这个数不能被5或者6整除"%a)

运行结果：

 

demo 28

 

shuju = {0:'剪刀',1:'石头',2:'布'}
from random import randint
a=randint(0,3)
b = int(input("请输入0（剪刀），1（石头），2（布）:"))
if (a-b)==0:
	print("电脑是：%s，玩家是：%s，平局"%(shuju.get(a),shuju.get(b)))
elif (a-b)==-2 or (a-b)==1:
	print("电脑是：%s，玩家是：%s，电脑赢"%(shuju.get(a),shuju.get(b)))
else:
	print("电脑是：%s，玩家是：%s，玩家赢"%(shuju.get(a),shuju.get(b)))

 运行结果：

demo 29

 

a = eval(input("Enter the exchange rate from do1lars to RMB: "))
b = eval(input("Enter 0 to convert do11ars to RMB and 1 vice versa: "))
amount = eval(input("Enter the do1lar amount: "))
if b == 0:
    amount1 = amount * a
    print("$%.1f is %.1f yuan"%(amount,amount1))
elif b == 1:
    amount1 = amount / a
    print("%.1f yuan is $%.2f"%(amount, amount1))
else :
    print("Incorrect input")

 运行结果：

demo 30

 

a, b, c = eval(input("请输入三边:"))
if a + b > c and a + c > b and b + c > a:
    print(a+b+c,"合法")
else :
    print("不合法")

 运行结果：

demo 31

 

import math
year = eval(input("Enter year:(e,g.,2008):"))
month = eval(input("Enter month:1-12:"))
q = eval(input("Enter the day of the month:1-31:"))
m = 0
if month == 1 or month == 2:
    m = 12 + month
    year = year - 1
j = year // 100
k = year % 100
h = (q + ((26*(m+1))//10)+k+k//4+j//4+5*j)%7
if h == 0:
    print("Today is Sunday and the future day is 星期六")
elif h == 1:
    print("Today is Sunday and the future day is 星期天")
elif h == 2:
    print("Today is Sunday and the future day is 星期一")
elif h == 3:
    print("Today is Sunday and the future day is 星期二")
elif h == 4:
    print("Today is Sunday and the future day is 星期三")
elif h == 5:
    print("Today is Sunday and the future day is 星期四")
elif h == 6:
    print("Today is Sunday and the future day is 星期五")

 运行结果：

 

demo 32

 

 

import math
a,b = eval(input("Enter a point with two coordinates:"))
r = math.sqrt(a*a+b*b)
if r < 10:
	print("点(%s，%s)在圆内"%(a,b))
else:
	print("点(%s，%s)在圆内"%(a,b))

 运行结果：

demo 33

 

x, y = eval(input("Enter a point with two coordinates:"))
if x >= -5 and x <= 5 and y <= 2.5 and y >= -2.5:
    print("Point (%.1f,%.1f) is in the rectangle"%(x,y))
else :
    print("Point (%.1f,%.1f) is not in the rectangle" % (x, y))

 运行结果：

demo 34

 

x = int(input("Enter a three-digit integer:"))
a = x % 10
b = x // 100
if a == b:
    print("%d is a palindrome" %x)
else :
    print("%d not is a palindrome" %x)

 运行结果：

 demo 35

 

 

x, y = eval(input("Enter a point's x- and y-coordinates:"))
# 先限定xy的范围
if x >= 0 and x <= 200 and y >= 0 and y <= 100:
    k = y / (200 - x)
    if k <= 100 / 200:
        print("The point is in the triangle")
    else:
        print("The point is not in the triangle")
else:
    print("The point is not in the triangle")

 运行结果：

demo 36

 

import math
x1,y1,r1 = eval(input("请输入圆一的圆心心坐标和半径:"))
x2,y2,r2 = eval(input("请输入圆二的圆心心坐标和半径:"))
juli = math.sqrt((x1-x2)**2+(y1-y2)**2)
if juli <= math.sqrt((r1-r2)**2):
	print("圆二在圆一内")
elif juli <= r1+r2:
	print("圆二与圆一有重叠")
else:
	print("无相交")

 运行结果：