m*****e
发帖数: 35 | 1 lass M(object):
def __init__ (self):
self.a=20
a=[M()] *10
print len(a)
for phc in (a):
print "[%d]"%phc.a
a[0].a=30
for phc in (a):
print "[%d]"%phc.a
============
I want to have an array of M object. but it seems that everytime I change a
value in a[0], all other elements are changed too? what is wrong? how to
correct it?
thank you |
m******e
发帖数: 44 | 2 All elements in a refer to the same object or address, change:
a=[M()] *10
to
a=[M() for i in range(10)]
【在 m*****e 的大作中提到】
: lass M(object):
: def __init__ (self):
: self.a=20
: a=[M()] *10
: print len(a)
: for phc in (a):
: print "[%d]"%phc.a
: a[0].a=30
: for phc in (a):
: print "[%d]"%phc.a
|
m*****e
发帖数: 35 | 3
【在 m******e 的大作中提到】
: All elements in a refer to the same object or address, change:
: a=[M()] *10
: to
: a=[M() for i in range(10)]
|
