python学习之旅--求和，输出数字，

1 #!/usr/bin/env python
2 # -*- coding:utf8 -*-
3 #计算1-100数之和
4 n = 1
5 s = 0
6 while n < 101:
7     s = s + n
8     n = n + 1
9 print(s)

 1 #!/usr/bin/env python
 2 # -*- coding:utf8 -*-
 3 #输出012345689数字
 4 n = 0
 5 while n < 10:
 6     if n == 7:
 7         pass
 8     else:
 9         print(n)
10     n = n + 1
11 print(‘---end---‘)

 1 #!/usr/bin/env python
 2 # -*- coding:utf8 -*-
 3 #输出1-100以内的所有奇数
 4 n = 1
 5 while n < 101:
 6     temp = n % 2
 7     if temp == 0:
 8         pass
 9     else:
10         print(n)
11     n = n + 1
12 print(‘---end---‘)

#!/usr/bin/env python
# -*- coding:utf8 -*-
#输出1-100以内所有奇数
n = 1
while n < 101:
    temp = n % 2
    if temp  != 1:
        pass
    else:
        print(n)
    n = n + 1
print(‘---end---‘)

 1 #!/usr/bin/env python
 2 # -*- coding:utf8 -*-
 3 #输出1-100以内所有偶数
 4 n = 1
 5 while n < 101:
 6     temp = n % 2
 7     if temp != 0:
 8         pass
 9     else:
10         print(n)
11     n = n + 1
12 print(‘---end---‘)

 1 #!/usr/bin/env python
 2 # -*- coding:utf8 -*-
 3 #输出1-100以内所有偶数
 4 n = 1
 5 while n < 101:
 6     temp = n % 2
 7     if temp == 1:
 8         pass
 9     else:
10         print(n)
11     n = n + 1
12 print(‘---end---‘)

 1 #!/usr/bin/env python
 2 # -*- coding:utf8 -*-
 3 #求1-2+3-4+5...+99之和
 4 n = 1
 5 s = 0
 6 while n < 100:
 7     temp = n % 2
 8     if temp == 0:
 9         s = s-n
10     else:
11         s = s + n
12     n = n + 1
13 print(s)