Python control statements

1. For example, if Python advocates a simple and practical idea, it does not have a switch statement.
You can write
(1) implemented through the IF Elif statement
If condition:
...
Elif condition:
...
Else:
...
(2) Pass CopyCode The Code is as follows: info = {}
Info = {'A': '1', 'B: 2, 'c: 3, 'default': ss '}
C = info. Get ('A', default ')
The 2while statement has an else statement.
A = 2
While a> 1:
Print 'success'
Else:
Print 'error'

When the while loop condition changes to false, the else block is executed -- this may even be the first time the condition is verified.
3. The for statement has an else statement.Copy codeThe Code is as follows: for I in xrange (5 ):
Print I
Else:
Print 'loop is end'

The result is 0 1 2 3 4 loop is end.
Remember, the else part is optional. If else is included, it is always executed once after the for loop ends,
If you encounter a break statement, the else statement after for will not be executed.Copy codeThe Code is as follows: for I in xrange (5 ):
If I = 3:
Print 'success'
Else:
Print 'loop is end'

The result is success.

This article is from: rootexp