python day02 作业答案

1.

(1).false   (2).false

2.

(1).8  (2).4

3.

(1).6  (2).3  (3).false (4).3   (5).true   (6).true  (7).0  (8).3  (9).0 (10).2

4.

(1).while True:

　　循环体

else：

　　跳出循环执行这里

5.

count=1
while 1:
    number=input("猜猜我的数字：")
    if int(number)==66:
        print("回答正确")
        break
    elif int(number)< 66:
        print("猜小了")
    else :
        print("猜大了")

6.

count=1
while 1:
    number=input("猜猜我的数字：")
    if int(number)==66:
        print("回答正确")
        break
    elif count ==2:
        print("太笨了")
        count=count+1

7.

count=1
while count<=10:
    print(count)
    count+=1

8.

count=1
sum=1
while count<=99:
    count += 1
    sum=sum+count
print(sum)

9.

count=1
while count<=100:
    if count %2!=0:
        print(count)
    count += 1

10.

count=1
while count<=100:
    if count %2==0:
        print(count)
    count += 1

11.

sum=1
count=1
while count<99:
    count=count+1
    if count %2 ==0:
        sum=sum-count
    else :
        sum=sum+count

12.

count=1
while count<=3:
    username = input('请输入用户名：')
    password = input("请输入密码：")
    if username=='apple' and password =='':
        print('登陆成功')
        break
    else :
        print("登陆失败")
        print("还剩"+str(3-count)+"次")
    count=count+1

13.

14.

a='最'
b='第一'
c='稀缺'
d='国家级'
ad=input("输入广告：")
if (a  or b  or c or d) in ad:
    print("不合法")
else:
    print('合法')