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튜플 연습.py

+Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 03:13:28) 
+[Clang 6.0 (clang-600.0.57)] on darwin
+Type "help", "copyright", "credits" or "license()" for more information.
+>>> #튜플 자료형
+>>> t1=()
+>>> t2=(1,)
+>>> t3=(1,2,3)
+>>> t4=1,2,3
+>>> t5=('a','b',('c','d'))
+>>> type(t1)
+<class 'tuple'>
+>>> type(t2)
+<class 'tuple'>
+>>> type(t3)
+Traceback (most recent call last):
+  File "<pyshell#8>", line 1, in <module>
+    ype(t3)
+NameError: name 'ype' is not defined
+ty
+>>> type(t3)
+<class 'tuple'>
+>>> type(t4)
+<class 'tuple'>
+>>> type(t5)
+<class 'tuple'>
+>>> t=(1)
+>>> type(t)
+<class 'int'>
+>>> #튜플의 요소가 1개일떄는 반드시 ,를 붙여줘야한다.
+>>> #튜플과 리스트의 차이는 요소를 변경시킬수 있느냐 없느냐의 차이이다.
+>>> #튜플은 값을 변경할 수 가없다.
+>>> 
+>>> t1=(1,2,'a','b')
+>>> del t1[0]
+Traceback (most recent call last):
+  File "<pyshell#19>", line 1, in <module>
+    del t1[0]
+TypeError: 'tuple' object doesn't support item deletion
+>>> #튜플은 요소를 지울수도없다.
+>>> t1[0]
+1
+>>> t1[0] = 2
+Traceback (most recent call last):
+  File "<pyshell#22>", line 1, in <module>
+    t1[0] = 2
+TypeError: 'tuple' object does not support item assignment
+>>> #인덱싱
+>>> t1=(1,2,'a','b')
+>>> t1[2]
+'a'
+>>> t1[3]
+'b'
+>>> #슬라이싱
+>>> t1[1:]
+(2, 'a', 'b')
+>>> t1[:2]
+(1, 2)
+>>> #튜플 더하기
+>>> t2=(3,4)
+>>> t1+t2
+(1, 2, 'a', 'b', 3, 4)
+>>> t1 * 3
+(1, 2, 'a', 'b', 1, 2, 'a', 'b', 1, 2, 'a', 'b')
+>>> #튜플 연습문제
+>>> # 숫자 3만을 요소로 가지는 튜플을 작성하여라.
+>>> t=(3)
+>>> type(t)
+<class 'int'>
+>>> t1=(3,)
+>>> type(t1)
+<class 'tuple'>
+>>> #튜플에 요솣추가.
+>>> t1=(1,2,3)
+>>> t1.append(4)
+Traceback (most recent call last):
+  File "<pyshell#42>", line 1, in <module>
+    t1.append(4)
+AttributeError: 'tuple' object has no attribute 'append'
+>>> t1=[1,2,3]
+>>> type(t1)
+<class 'list'>
+>>> t1.append(4)
+>>> t1
+[1, 2, 3, 4]
+>>> t2=(1,2,3)
+>>> t3=(4,)
+>>> t4=t2+t3
+>>> t4
+(1, 2, 3, 4)
+>>>