Thread View: pl.comp.lang.python
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Started by ltklos
Thu, 04 Sep 2014 05:49
zmienna globalna
Author: ltklos
Date: Thu, 04 Sep 2014 05:49
Date: Thu, 04 Sep 2014 05:49
64 lines
2053 bytes
2053 bytes
Witam, zaczynam dopiero z Pythonem i mam problem ze zmienną globalną.
mam dwa pliki z kodem:
moduly1.py ktory zawiera jedna definicje funkcji:
def f (a,b):
import test_global
if a == b:
test_global.x = 0
elif a < b:
test_global.x = -1
else:
test_global.x = 1
print ".x = %d" % (test_global.x)
return a + b
i global_test.py:
from moduly1 import f
x = 10
print "1. x = %d" % (x)
print "suma: %d" % (f (1,2))
print "2. x = %d" % (x)
print "suma: %d" % (f (2,2))
print "3. x = %d" % (x)
print "suma: %d" % (f (3,2))
print "4. x = %d" % (x)
może ktoś mi wyjaśnić dlaczego w wyniku odpalenia global_test.py zamiast otrzymać:
1. x = 10
.x = -1
suma: 3
2. x = -1
.x = 0
suma: 4
3. x = 0
.x = 1
suma: 5
4. x = 1
dostaję taki wynik:
1. x = 10
1. x = 10
.x = -1
suma: 3
2. x = -1
.x = 0
suma: 4
3. x = 0
.x = 1
suma: 5
4. x = 1
.x = -1
suma: 3
2. x = 10
.x = 0
suma: 4
3. x = 10
.x = 1
suma: 5
4. x = 10
Re: zmienna globalna
Author: Jordan Szubert
Date: Thu, 04 Sep 2014 06:33
Date: Thu, 04 Sep 2014 06:33
10 lines
1205 bytes
1205 bytes
Dnia 04-09-2014 o 07:49:21 <ltklos@gmail.com> napisał(a): > Witam, zaczynam dopiero z Pythonem i mam problem ze zmienną globalną. [>8] coś z tych okolic? http://python-notes.curiousefficiency.org/en/latest/python_concepts/import_traps.html#executing-the-main-module-twice -- Jordan Szubert
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