From f245abcba71a8026e7af57a47c954c254a8fa918 Mon Sep 17 00:00:00 2001
From: KimMinSeob <msmk530@ajou.ac.kr>
Date: Wed, 5 Dec 2018 16:52:21 +0900
Subject: [PATCH] Upload New File
---
LectureNote-7.py | 268 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 268 insertions(+)
create mode 100644 LectureNote-7.py
diff --git a/LectureNote-7.py b/LectureNote-7.py
new file mode 100644
index 0000000..6d70488
--- /dev/null
+++ b/LectureNote-7.py
@@ -0,0 +1,268 @@
+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.
+>>> def hello():
+ print("hello world!")
+
+
+>>> hello()
+hello world!
+>>> def abs(arg):
+ if(arg<0):
+ result = arg*-1
+ else:
+ result = arg
+ return result
+
+>>> value=abs(10)
+>>> value
+10
+>>> value =abs(-100)
+>>> value
+100
+>>> def print_string(text,count):
+ for i in range(count):
+ print(text)
+
+
+>>> print_string("hi",5)
+hi
+hi
+hi
+hi
+hi
+>>> def print_string(text,count=1):
+ for i in range(count):
+ print(text)
+
+
+>>> #위의 함수를 호출할때 count값을 정해주지 않으면 자동으로 1로 할당된다.
+>>> print_string('hi',3)
+hi
+hi
+hi
+>>> print_string('hi')
+hi
+>>> def merge_string(*text_list):
+ result = ''
+ for s in text_list:
+ result= result + s
+ return result
+
+
+>>> merge_string('father','go','room')
+'father'
+>>> def merge_string(*text_list):
+
+ for s in text_list:
+ result= result + s
+ return result
+
+
+>>> merge_string('father','go','room')
+Traceback (most recent call last):
+ File "<pyshell#36>", line 1, in <module>
+ merge_string('father','go','room')
+ File "<pyshell#35>", line 4, in merge_string
+ result= result + s
+UnboundLocalError: local variable 'result' referenced before assignment
+>>> def merge_string(*text_list):
+ result=''
+ for s in text_list:
+ result= result + s
+ return result
+
+
+>>> merge_string('아버지가','방에','들어가신다.')
+'아버지가'
+>>> def merge_string(*text_list):
+ result = ''
+ for s in text_list:
+ result = result + s
+ return result
+
+>>> merge_string('father','goto','room')
+'fathergotoroom'
+>>> #return의 위치 중요
+>>> def print_team(**players):
+ for k in players.key():
+ print('{0} = {1}'.format(k,players[k]))
+
+
+>>> print_team(k='gk', r = 'fw', a= 'mf, p = 'df')
+
+SyntaxError: invalid syntax
+>>> print_team(k='gk', r = 'fw', a= 'mf', p = 'df')
+
+Traceback (most recent call last):
+ File "<pyshell#48>", line 1, in <module>
+ print_team(k='gk', r = 'fw', a= 'mf', p = 'df')
+ File "<pyshell#46>", line 2, in print_team
+ for k in players.key():
+AttributeError: 'dict' object has no attribute 'key'
+>>> def print_team(**players):
+ for k in players.keys():
+ print('{0} = {1}'.format(k,players[k]))
+
+
+>>> print_team(k='gk', r = 'fw', a= 'mf', p = 'df')
+
+k = gk
+r = fw
+a = mf
+p = df
+>>> def print_args(*argv,argc):
+ for i in range(argc):
+ print(argv[i])
+
+SyntaxError: expected an indented block
+>>> def print_args(*argv,argc):
+ for i in range(argc):
+ print(argv[i])
+
+
+>>> print_args("a","b","c",argc=3)
+
+a
+b
+c
+>>> print_args("a","b","c",argc=2)
+
+a
+b
+>>> #가변 매개변수와 일반 매개변수를 모두 사용할때는 일반매개변수가 가변매개변수 뒤에 와야한다.
+
+>>> def multiply(a,b):
+ return a*b
+
+
+>>> result = multiply(2,3)
+
+>>> result
+
+6
+>>> def my_abs(arg):
+ if arg<0:
+ return arg*-1
+ else:
+ return arg
+
+
+>>> result = my_abs(-50)
+
+>>> result
+
+50
+>>> result = my_abs(50)
+
+>>> result
+
+50
+>>> #none을 반환하는 경우
+
+>>> def my_abs(arg):
+ if arg<0:
+ return arg*-1
+ elif arg>0:
+ return arg
+
+
+>>> result = my_abs(0)
+
+>>> result
+
+>>> result == None
+
+True
+>>> type(result)
+
+<class 'NoneType'>
+>>> def ogamdo(num):
+ for i in range(1,num+1):
+ print("the {0}'s ahae".format(i))
+ if i==5:
+ return
+
+
+>>> ogamdo(5)
+
+the 1's ahae
+the 2's ahae
+the 3's ahae
+the 4's ahae
+the 5's ahae
+>>> ogamdo(8)
+
+the 1's ahae
+the 2's ahae
+the 3's ahae
+the 4's ahae
+the 5's ahae
+>>> #위의 return은 함수 종료의 의미로 사용되었다.
+
+>>> def print_something(*args):
+ for s in args:
+ print(s)
+
+
+>>> print_something(1,2,3)
+
+1
+2
+3
+>>> print_something(1,2,3,4,5)
+
+1
+2
+3
+4
+5
+>>> #함수 밖의 변수와 함수 안의 변수
+
+>>> def scope_test():
+ a=1
+ print('a:{0}'.format(a))
+
+
+>>> a=0
+
+>>> scope_test()
+
+a:1
+>>> print(a)
+
+0
+>>> #함수안에서의 a는 1이지만 밖에서는 0 이다.
+
+>>> def scope_test():
+ global a
+ a=1
+ print('a:{0}'.format(a))
+
+
+>>> a=0
+
+>>> scope_test()
+
+a:1
+>>> print(a)
+
+1
+>>> #재귀함수
+
+>>> def factorial(n):
+ if n == 0:
+ return 1
+ elif n>0:
+ return factorial(n-1)*n
+
+
+>>> factorial(5)
+
+120
+>>> factorial(10)
+
+3628800
+>>>
+
+>>>
--
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