第四次作业

*
**
***
****
*****
******

i = int(input("请输入打印的行数："))

for j in range(1, i + 1):
    print("*" * j)

i = int(input("请输入打印的行数："))

j= 1
while j <= i:
    print("*" * j)
    j += 1

*
***
*****
*******
*********
***********

i = int(input("请输入打印的行数："))

for j in range(1, i + 1):
    print("*" * (2*j - 1))

i = int(input("请输入打印的行数："))

j = 1
while j <= i:
    print("*" * (2*j - 1))
    j += 1

***********
*********
*******
*****
***
*

i = int(input("请输入打印行数："))

for j in range(i, 0, -1):
    print("*" * (2*j - 1))

i = int(input("请输入打印行数："))

while i >= 0:
    print("*" * (2*i -1))
    i -= 1

*
***
*****
*******
*********
***********
*********
*******
*****
***
*

i = int(input("请输入需要打印的行数："))

for j in range(1, i // 2 + 1):
    print("*" * (2*j - 1))

if i > i // 2 + 1:
    for k in range(i // 2 + 1, 0, -1):
        print("*" * (2*k - 1))

i = int(input("请输入需要打印的行数："))

j = 1
while j <= i // 2:
    print("*" * (2*j - 1))
    j += 1

if i > i // 2:
    k = i // 2 + 1
    while k > 0:
        print("*" * (2*k - 1))
        k -= 1

*
* *
* *
* *
* *
* *
* *
* *
* *
* *
*

i = int(input("请输入需要打印的行数："))

for j in range(1, i + 1):
    if j == 1 or j == i:
        print("*")

    else:
        print("* *")

i = int(input("请输入需要打印的行数："))

j = 1
while j <= i:
    if j == 1 or j == i:
        print("*")
    else:
        print("* *")

    j += 1

*
***
* * *
* * *
* * *
***********
* * *
* * *
* * *
***
*

i = int(input("请输入需要打印的行数："))

for j in range(1, i + 1):
    if j == i // 2 + 1:
        print("*" * i)
    elif j == 1 or j == i:
        print("*")
    elif j == 2 or j == i - 1:
        print("***")
    else:
        print("* * *")

i = int(input("请输入需要打印的行数："))

j = 1
while j <= i:
    if j == i // 2 + 1:
        print("*" * i)
    elif j == 1 or j == i:
        print("*")
    elif j == 2 or j == i - 1:
        print("***")
    else:
        print("* * *")
    j += 1

用户输入两个数a、b。如果a能被b整除或a加b大于1000，则输出a；否则输出b。

a, b = map(int, input("请输入两个数,以空格分隔：").split())

if a % b == 0 or a + b > 1000:
    print(f"a = {a}")
else:
    print(f"b = {b}")

a, b = map(int, input("请输入两个数,以空格分隔：").split())

c = a if a % b == 0 or a + b > 1000 else b

print(c)

请输入一个数，判断这个数是偶数还是奇数，如果使用偶数，请判断从1到该数是3的倍数有哪些，如果是奇数，请判断从1到该数是5的倍数有哪些

a = int(input("请输入一个数："))

if a & 1 == 0: # 偶数
    print(f"{a}是偶数")
    for j in range(1, a + 1):
        if j % 3 == 0:
            print(f"1-{a}是3的倍数有:{j}")
elif a & 1 == 1: # 奇数
    print(f"{a}是奇数")
    for j in range(1, a + 1):
        if j % 5 == 0:
            print(f"1-{a}是5的倍数有:{j}")
else:
    print("Error")

某商店T恤的价格为35元/件（2件9折，3件以上8折）,裤子的价格为120 元/条（2条以上9折）.小明在该店买了3件T恤和2条裤子,请计算并显示小明应该付多少钱?

T, K = map(int, input("请输入你要购买T恤和裤子的条数,以空格分隔：").split())

T_price = 35.0
K_price = 120.0

T_K_price = 0.0

if T == 2:
    T_price = 35.0*0.9
else:
    T_price = 35.0*0.8

if K > 2:
    K_price = 120.0*0.9
else:
    K_price = 120.0

T_K_price = T*T_price + K*K_price

print(f"小明应付的钱：{T_K_price}")

鸡兔同笼，从上面看有35个头，从下面看有94只脚，请问鸡有几只，兔有几只？

head = int(input("请输入头的个数："))
foot = int(input("请输入脚的条数："))

for chicken in range(1, head + 1):
    rabbit = head - chicken
    if (2*chicken + 4*rabbit) == foot:
        print(f"兔的个数：{rabbit}, 鸡的只数：{chicken}")
    else:
        print("无解")

猜拳游戏：石头、剪刀、布的游戏

import random


count = 0
my_win = 0
c_win = 0
draw = 0
while True:
    count += 1
    compute = random.randint(1, 3)
    mycode = int(input("请输入一个1~3的整数,表示出的拳头(1.石头 2.剪刀 3.布):"))

    if compute == mycode:
        print("点到即止，大家平手！")
        draw += 1
    elif (compute == 1 and mycode == 2) or (compute == 2 and mycode == 3) or (compute == 3 and mycode == 1):
        print("对不起，承让")
        c_win += 1
    else:
        print("呵呵，你也不过如此😂😂")
        my_win += 1
# 每交手10次，做一次确认
    if count % 10 == 0:
        print(f"你们共交手{count}次，你共赢了{my_win}次,你输了{c_win}次,平手{draw}次")
        choice = input("您是否确定结束游戏,如果确定结束,请输入Y或y:")
        if choice.lower() == "y":
            break
        else:
            continue

index = 0
while index <= 10:
    index += 1
    if index == 11:
        # break
        continue
    print(index)
    
else:
    print("循环中的else")

print("GAME OVER")

判断以下哪些不能作为标识符(B\D\E\F)
A、a
B、￥a
C、_12
D、$a@12
E、false
F、False

求50~150之间的质数是那些？

for num in range(50, 151):
    flag = True
    for i in range(2, num // 2 + 1):
        if num % i == 0:
            # print("不是质数")
            flag = False
            break

    if flag:
        print(f"{num}是质数")
    else:
        print(f"{num}是合数")

打印输出标准水仙花数，输出这些水仙花数

for num in range(100, 1000):
    a = num // 100
    b = num % 100 // 10
    c = num % 10
    if a**3 + b**3 + c**3 == num:
        print(f"水仙花数为：{num}")

验证:任意一个大于9的整数减去它的各位数字之和所得的差,一定能被9整除.

# 拆位法

num = int(input("请输入一个大于9的数:"))

count = 0
while num > 0:
    count += num % 10
    num //= 10
if (num - count) // 9:
    print("验证通过")

# 将数字转换为字符串，字符串可以求长度

num = int(input("请输入一个大于9的数:"))
count = 0
num2 = str(num)
for i in num2:
    count += int(i)

if(num - count) % 9 == 0:
    print("验证通过")

一个五位数,若在它的后面写上一个7,得到一个六位数A,
若在它前面写上一个7,得到一个六位数B,B是A的五倍,求此
五位数.

for i in range(10000, 1000000):
    A = i * 10 + 7
    B = 7 * 100000 + i
    if B == 5*A:
        print(f"这个五位数为：{i}")