"""
Demo 37
数据：电脑产生随机数字 com，用户输入数字user
步骤：
1、电脑随机生成一个数字（0-100）
2、提示用户输入一个数字
3、对数字进行比较
当com>user,提示数字太高
当com<user,提示数字太低
当com=user，提示猜对了输出数字，程序结束
"""
import random
com = random.randint(0,100)
while True :
user = int(input("Enter your guess:"))
if com < user :
print("Your guess is too high!")
elif com == user :
print("Yes,the number is ",com)
break
elif com > user:
print("Your guess is too low!")Resultados de la prueba:
"""
Demo 38
数据：两个整数num1和num2,最大公约数gcd,数字k(2-min(num1,num2)
步骤：
1、提示用户输入两个整数
2、从数字2开始到min(num1,num2)找两数的公约数
若num1 % k==0 and num2 % k ==0 则gcd=k
当找完所有可能公约数后，最后的gcd为两者的最大公约数
"""
num1,num2 = eval(input("请输入两个整数："))
gcd = 1
for k in range(2,min(num1, num2) +1 ):
if num1 % k == 0 and num2 % k == 0 :
gcd = k
print("%d和%d的最大公约数是：%d" %(num1,num2,gcd))Resultados de la prueba:
"""
Demo 39
数据：1000000个点total,落入圆内点数sum
步骤：
1、每次循环先随机生成一个坐标x∈[-1,1],y∈[-1,1]
2、点落入圆内sum+1
3、循环结束后，计算sum/total*4
"""
import random
sum = 0
total = 1000000
for i in range(0,total):
x = random.random() * 2 - 1
y = random.random() * 2 - 1
distance = (x**2 + y**2) ** 0.5
if distance <= 1:
sum += 1
pi = sum / total * 4
print(pi)Resultados de la prueba:
"""
Demo 40
数据：正数positives,负数negatives,总和sum,平均值average,正数个数total
步骤：
1、提示用户输入一个数字
2、对数字进行判断
如果该数字为0 则循环结束
如果该数字 > 0 positives += 1 sum += 数字 继续1
如果该数字 < 0 negatives += 1 sum += 数字 继续1
3.计算平均值 = 总和 / (正 + 负)
如果总个数为0则输出没有任何数字输入
"""
positives = 0
negatives = 0
sum = 0
average = 0
while True:
num = int(input("Enter an integer,the input ends if it is 0:"))
if num == 0 :
break
elif num > 0 :
positives += 1
elif num < 0 :
negatives += 1
sum += num
total = positives + negatives
if total == 0 :
print("Your didn't enter any number")
print("The number of positives is ",positives)
print("The number of negatives is ",negatives)
print("The sum is ",sum)
print("The average is ",sum / total)Resultados de la prueba:
"""
Demo 41
数据：一个整数num
思路：
flag若为false,则表示循环被break，说明找到该数字的因子
flag若最后为True,则表示循环正常结束，没有找到数字的因子，则直接输出该数字
"""
num = int(input("请输入一个整数："))
while num != 1 :
flag = True
for i in range(2,num // 2 + 1):
if num % i == 0:
print(i,end=' ')
num = num // i
flag = False
break
if flag :
print(num)
breakResultados de la prueba:
"""
Demo 42
"""
num = int(input("Enter the number of lines:"))
for i in range(0,num):
for k in range(num-i,0,-1):
print(" ",end= " ")
for j in range(-i,i+1):
print(abs(j)+1,end=" ")
print()
Resultados de la prueba:
"""
Demo 43
"""
print("模式A")
for i in range(1,7):
for j in range(1,i+1):
print(j,end=' ')
print()
print("模式B")
for i in range(7,1,-1):
for j in range(1,i):
print(j,end=' ')
print()
print("模式C")
for i in range(0,6):
for k in range(6-i,0,-1):
print(" ",end = " ")
for j in range(i+1,0,-1):
print(j,end = " ")
print()
print("模式D")
for i in range(7,0,-1):
for k in range(0,7-i):
print(' ',end=' ')
for j in range(1,i):
print(j,end=' ')
print()Resultados de la prueba:
"""
Demo 44
"""
for i in range(0,8):
for k in range(8-i,0,-1):
print(" ",end="")
for j in range(-i,i+1):
print(2 **(i - abs(j)),end=" ")
print()Resultados de la prueba:
"""
Demo 45
"""
count = 0
for i in range(2,1001):
for j in range(2,i):
if i % j == 0 :
break
else:
print(i,end='\t')
count += 1
if count % 8 == 0:
print()Resultados de la prueba:
"""
Demo 46
"""
for j in range(10000,100001,10000):
sum = 0
for i in range(1,j+1):
total = (-1) ** (i + 1) / (2 * i - 1)
sum += total
pi = sum * 4
print(pi)Resultados de la prueba:
"""
Demo 47
"""
e = 1
item = 1
for n in range(10000, 100001, 10000):
for i in range(1, n + 1):
item *= i
e += 1 / item
print("当i=%d时，e=%f" % (n, e))
Resultados de la prueba:
"""
Demo 48
"""
for i in range(2,10001):
sum = 1
for j in range(2,i // 2 + 1):
if i % j == 0 :
sum += j
if sum == i :
print(sum)
Resultados de la prueba:
"""
Demo 49
com 电脑，user 用户
剪刀 0
石头 1
布 2
若赢：0-2=-2 or 1 (2-1,0-1)
"""
import random
flag1 = 0
flag2 = 0
while True:
user = int(input("请输入一个数字（0：剪刀；1：石头；2：布）"))
com = random.randint(0,2)
if user - com == 1 or user - com == -2 :
print("此局用户赢！")
flag1 += 1
elif com == user :
print("此局平局！")
else:
print("此局电脑赢！")
flag2 += 1
if flag1 > 2 or flag2 > 2 :
if flag1 > flag2:
print("恭喜电脑获得最终胜利！")
break
if flag1 < flag2:
print("恭喜电脑获得最终胜利！")
breakResultados de la prueba:
"""
Demo 50
"""
count = 0
max = 0
while True:
num = int(input("Enter a number(0:for end of input):"))
if num == 0 :
break
if num > max :
max = num
count = 1
elif num == max :
count += 1
print("The largest number is ",max)
print("The occurrence count of the largest number is ",count)Resultados de la prueba:
"""
Demo 51
s ---商
y ---余数
"""
y = 0
b = ''
num = int(input("请输入一个十进制整数："))
if num == 0:
b = '0'
while num :
s = num // 2
y = num % 2
num = s
b = str(y) + b
print("二进制数为0b",b)Resultados de la prueba:
"""
Demo 52
思路：
1、提示用户输入一个十进制整数
2、将十进制转为十六进制数
若输入的十进制数是0，则输出0
若不为0则循环：
num // 16 若等于0，退出循环
num // 16 不等于0，求出num % 16余数，拼接余数
若余数为10---A，11---B，12---C，13---D，14---E，15---F
3、输出结果
"""
number = int(input("Enter a number:"))
hexStr = ""
while number != 0:
a = number % 16
if a < 10:
hexStr = str(a) + hexStr
else:
hexStr = chr(55 + a) + hexStr
number //= 16
print(hexStr)Resultados de la prueba:
"""
Demo 53
数据：有1000000个点
步骤：
1、随机设定坐标在x∈[-1,1] and y∈[-1,1]
2、当 x∈[-1,0] 并且 y∈[-1,1] 和 x∈[0,1]并且y∈[0,1]并且x+y<=1时，落入奇数区域
3、求概率
"""
import random
num = 0
for i in range(0,1000001):
x = random.random() * 2 - 1
y = random.random() * 2 - 1
if -1 <= x <= 0 and -1 <= y <= 1:
num += 1
elif 0 <= x <= 1 and 0 <= y <= 1 and x + y <= 1:
num += 1
p = num / 1000000
print("这个飞镖落在奇数区域里的概率是：%.5f"%p)Resultados de la prueba:
"""
Demo 54
"""
count = 0
for year in range(2001,2101):
if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:
print(year,end = " ")
count += 1
if count % 10 == 0 :
print()
Resultados de la prueba:
