Python Control Statement _python

1 For example python advocates a simple and practical idea, it does not have a switch statement, if you want to implement the effect of the switch statement
There are 2 ways to write
(1) using the IF Elif statement to implement
If condition:
...
Elif Condition:
...
Else
...
(2) through

Copy Code code as follows:

info = {}
info = {' A ': ' 1′, ' b:2, ' c:3, ' default ': SS '}
c = Info.get (' A ', default ')
2while statement has else statement
A = 2
While a > 1:
print ' Success '
Else
print ' ERROR '

The else block is executed when the while loop condition is false--which may even be the first time the condition is checked.
3 For statement has else statement

Copy Code code as follows:

For I in Xrange (5):
Print I
Else
print ' Loop is end '

The result is 0 1 2 3 4 loop are end
Remember that the else part is optional. If you include else, it is always executed once after the end of the For Loop,
If you encounter a break statement, the else statement behind for is not executed

Copy Code code 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