学习python程序语言的第一天

1.通过while循环输入123456  789

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

    
1
2
3
4
5
6
8
9
10

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所有的奇数

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

4.输出1-100所有的偶数

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

5.输出1-2+3-4+5.....+99的所有数之和

>>> n = 1
>>> s = 0
>>> while n < 100:
    temp = n % 2
    if temp == 0:
        s = s - n
    else:
        s = s + n
    n = n + 1
    print(s)