question

Dan Upton upton at virginia.edu
Thu May 29 18:53:29 EDT 2008


On Thu, May 29, 2008 at 6:41 PM, Gandalf <goldnery at gmail.com> wrote:
> On May 30, 12:14 am, John Henderson <jhenRemoveT... at talk21.com> wrote:
>> Gandalf wrote:
>> > how do i write this code in order for python to understand it
>> > and print me the x variable
>>
>> > x=1
>> > def aaaa():
>> >     x++
>> >     if x > 1:
>> >         print "wrong"
>> >     else :
>> >         print x
>>
>> > aaaa()
>>
>> Example:
>>
>> x=1
>> def aaaa(x):
>>     x += 1
>>     if x > 1:
>>         return "wrong"
>>     else :
>>        return x
>>
>> print aaaa(x)
>>
>> John
>
> mmm isn't their any global variable for functions?

If I get what you're asking, you have to tell the function there
exists a global:

IDLE 1.2
>>> x=1
>>> def a():
	global x
	x+=1
	if x > 1:
		print x
	else:
		print "nope"

		
>>> print x
1
>>> a()
2
>>> print x
2



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