循环语句作业

Posted 2020-11-01 monster7

作业：

1.使用while循环输入1 2 3 4 5 6 8 9 10（没有7）

 

n = 1
while n < 11:
    if n == 7:
        pass
    else:
        print(n)
    n = n + 1
print(‘结束‘)

 

2.求1-100所有数的和

 

n = 1
s = 0
while n < 101:
    s = s + n
    n = n + 1
print(s)

 

3.输出1-100的所有奇数

 

n = 1
while n <101:
    print(n)
    n = n + 2
print(‘结束‘)

 

 

n = 1
while n <101:
    temp = n % 2
    if temp == 0:
        pass
    else:
        print(n)
    n = n + 2
print(‘结束‘)

 

4.输出1-100的所有偶数

 

n = 1
while n < 101:
    temp = n % 2
    if temp == 0:
        print(n)
    else:
        pass
    n = n + 1
print(‘结束‘)

 

5.求1-2+3-4+5...99的所有的数的和

 

n = 1
s = 0
while n < 101:
    temp = n % 2
    if temp == 0:
        s = s - n
    else:
        s = s + n
    n = n + 1
print(n)

 

6.用户登录(三次机会重试)

 

 

 

 

死循环：

注意最后print的是否空格区别。

count = 0
while count < 10:
　　print(‘继续运行‘)
　　count = count + 1
print(‘结束运行‘)