while循环小例

 1 # 使用while 循环输入 1 2 3 4 5 6  8 9 10
 2 n = 1
 3 while n <= 10:
 4     if n == 7:
 5         pass
 6     else:
 7         print(n)
 8     n = n + 1
 9 
10 # 求1-100的所有数的和
11 n = 1
12 count = 0
13 while n <= 100:
14     count = count + n
15     n = n + 1
16 print(count)
17 
18 # 输出1-100 内的所有奇数
19 n = 1
20 while n <= 100:
21     if n % 2 == 1:
22         print(n)
23     n = n + 1
24 
25 # 输出1-100 内的所有偶数
26 n = 1
27 while n <= 100:
28     if n % 2 == 0:
29         print(n)
30     n = n + 1
31 
32 # 求 1-2+3-4+5...99的所有数的和
33 n = 1
34 count = 0
35 while n <= 99:
36     if n % 2 == 1:
37         count = count + n
38     elif n % 2 == 0:
39         count = count - n
40     n = n + 1
41 print(count)