from ctypes import *
import os.path
import sys
def test(c):
print "test before "
print id(c)
c+=2
print "test after +"
print id(c)
return c
def printIt(t):
for i in range(len(t)):
print t[i]
if __name__=="__main__":
a=2
print "main before invoke test"
print id(a)
n=test(a)
print "main afterf invoke test"
print a
print id(a)
>>> main before invoke test test before test after + main afterf invoke test 39601564
>>> a=1 >>> b=1 >>> id(a) >>> id(b) >>> a=2 >>> id(a)
from ctypes import *
import os.path
import sys
def test(list2):
print "test before "
print id(list2)
list2[1]=30
print "test after +"
print id(list2)
return list2
def printIt(t):
for i in range(len(t)):
print t[i]
if __name__=="__main__":
list1=["loleina",25,'female']
print "main before invoke test"
print id(list1)
list3=test(list1)
print "main afterf invoke test"
print list1
print id(list1)
>>> main before invoke test test before test after + main afterf invoke test ['loleina', 30, 'female']
>>> list1=[1,2] >>> id(list1) >>> list1[0]=[0] >>> list1 [[0], 2] >>> id(list1)
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