1.1. 1. ¶
- 갖 갖 (, , 결, , 길 )
- () .
- 과 경 과, 갖고 과 ( ) 갖 .
- () .
- 과 경 과, 갖고 과 ( ) 갖 .
~cpp t = () # 공 t = (1,2,3) t = 1,2,3 # r = (1,) r = 1, # r=1 기 t[0]=100 # . * 개 . >>> x,y,z=1,2,3 * 값 게 . >>> x = 1 >>> y = 2 >>> x, y = y, x >>> x, y (2,1)
1.2. 과 ¶
- 개 고 .
~cpp t = 1,2,'hello'- , 꺼 고 .
~cpp x,y,z = t
* .
~cpp >>> T = (1,2,3,4,5) >>> L = list(T) >>> L[0] = 100 >>> L [100, 2, 3, 4, 5] >>> T = tuple(L) >>> T (100, 2, 3, 4, 5)
1.3. 경 ¶
1. 값 경
~cpp
>>> def calc(a,b):
return a+b, a*b
>>> x, y = calc(5, 4)
2.
~cpp
>>> print 'id : %s, name : %s' % ('gslee','GangSeong')
id : gslee, name : GangSeong
3. apply
~cpp >>> apply(calc, (4,5)) (9,20)
4. 그 고 값 기 .
~cpp
>>> d = {'one':1, 'two':2}
>>> d.items()
[('one',1), ('two',2)]
2. 2. ¶
- 객 , 갖 .
- 과 , (mapping).
- (key) 값(value) 근.
- 과 , (mapping).
- (key) 값(value) 근.
~cpp
>>> dic = {} # dic .
>>> dic['dictionary'] = '1. A reference book containing an alphabetical list of words, ...'
>>> dic['python'] = 'Any of various nonvenomous snakes of the family Pythonidae, ...'
>>> dic['dictionary'] # dic, dictionary ?
'1. A reference book containing an alphabetical list of words, ...'
~cpp
>>> member = {'basketball' :5, 'soccer':11, 'baseball':9}
>>> member['baseball'] #
9
>>> member['volleyball'] = 7 #
>>> member
{'soccer' : 11, 'volleyball' : 7 'baseball' : 9 , 'basketball' : 5}
>>> len(member)
4
>>> del member['basketball'] #
* 값 .
구 기 . < (hash) >
* 값 객 , 경 (immutable) . , , , , .
값 .~cpp
>>> def add(a,b):
return a+b
>>> def sub(a,b):
return a-b
>>> action = {0:add, 1:sub}
>>> action[0](4,5)
9
>>> action[1](4,5)
-1
2.1. 객 ¶
1. D.keys() :
2. D.values() : 값
3. D.items() : (key, value)
4. D.has_key(key) : . D key 고 . (1), 거(0) .
6. D.copy() :
8. D.setdefalut(key , x) : get 과 값 값 (Dkey = x)
9. D.update(b) : for k in b.keys(): Dk=bk , b D .
10. D.popitem() : (, 값) 고 거.
2. D.values() : 값
3. D.items() : (key, value)
4. D.has_key(key) : . D key 고 . (1), 거(0) .
key in D .
5. D.clear() : D 6. D.copy() :
~cpp
>>> a = d # . ( 객 공)
>>> a = d.copy() # . ( 객 .)
>>> phone = {'jack': 232412, 'jim':1111, 'Joseph' : 234632}
>>> p = phone
>>> phone['jack'] = 1234
>>> phone
{'jack': 1234, 'jim':1111, 'Joseph' : 234632}
>>> p
{'jack': 1234, 'jim':1111, 'Joseph' : 234632}
>>> ph = phone.copy()
>>> phone['babo'] = 5324
>>> phone
{'jack': 1234, 'jim':1111, 'Joseph' : 234632, 'babo' : 5324}
>>> ph
{'jack': 1234, 'jim':1111, 'Joseph' : 234632}
7. D.get(key , x) : 값 Dkey 값 , x 8. D.setdefalut(key , x) : get 과 값 값 (Dkey = x)
9. D.update(b) : for k in b.keys(): Dk=bk , b D .
10. D.popitem() : (, 값) 고 거.
2.2. for 기 ¶
~cpp
>>> D = {'a':1, 'b':2 ,'c':3}
>>> for key in D.keys():
print key, D[key]
b 2
c 3
a 1
* 기
~cpp
>>> items = D.items()
>>> items.sort()
>>> items
[('a', 1), ('b', 2) , ('c', 3)]
>>> for k,v in items:
print k, v
a 1
b 2
c 3
* 2.2
~cpp
>>> D = {'a':1, 'b':2, 'c':3}
>>> for key in D:
print key, D[key]
a 1
c 3
b 2
