Python 日循环练习、数字游戏和任务

1）编写一个程序来获取以下输出：
1 2 3 4 5 5 4 3 2 1

no = 1
top = 5
direction = 1
while no>0:
    print(no,end= ' ')
    if no == top:
        print(no,end=' ')
        direction = -1
    no = no + direction

输出：

1 2 3 4 5 5 4 3 2 1

使用随机模块：

2) 猜数字游戏：
程序将一直运行直到我们猜出数字

import random

system_no = random.randint(1,20)

while true:
    guess = int(input("enter the no. "))
    if guess == system_no:
        print("hurray!  i got the number!! ")
        break
    elif guess > system_no:
        print("your guess is too high! ")
    else:
        print("your guess is too low! ")

输出：

enter the no. 5
your guess is too low! 
enter the no. 7
your guess is too low! 
enter the no. 10
your guess is too low! 
enter the no. 12
hurray!  i got the number!! 

3) 数字中最大的数字：

no = int(input("enter no. "))
max_no = 0
while no>0:
    rem = no%10
    if rem>max_no:
        max_no = rem
    no//=10

print(max_no)

输出：

enter no. 452
5

所以在 452 中，5 是数字中最大的数字。

任务：

1) 查找数字中最小的数字：

no = int(input("enter no. "))
min_no = 9
while no>0:
    rem = no%10
    if rem<min_no:
        min_no=rem
    no//=10

print(min_no)

输出：

enter no. 452
2

2) 判断所有数字是否相等

no=input("enter the no. ")

num=1

while num <len(no):
    if no[num]==no[0]:   
        print("all digits are equal")
        break
    num+=1

else :
    print("not equal")

输出：

1)Enter the no. 4444
  All digits are equal
2)Enter the no. 46562
Not equal