num = 3
result = ('짝수' if num % 2 == 0 else '홀수')
print(f'{num}은 {result}입니다!')
a_list = [1,3,2,5,1,2]
b_list = [a*2 for a in a_list]
print(b_list)
def check_adult(person):
if person['age'] > 20:
return '성인'
else:
return '청소년'
result = map(check_adult, people) # map을 통해서 people을 하나씩 check_adult에
대입해서 돌린다
print(list(result))
<h3> lambda </h3>
굳이 함수까지 쓸 필요 없다!
people = [
{'name': 'bob', 'age': 20},
{'name': 'carry', 'age': 38},
{'name': 'john', 'age': 7},
{'name': 'smith', 'age': 17},
{'name': 'ben', 'age': 27},
{'name': 'bobby', 'age': 57},
{'name': 'red', 'age': 32},
{'name': 'queen', 'age': 25}
]
result = map(lambda person: ('성인' if person['age'] > 20 else '청소년'), people)
print(list(result))
<h3> filter </h3>
좀 더 직관적인 코드!
people = [
{'name': 'bob', 'age': 20},
{'name': 'carry', 'age': 38},
{'name': 'john', 'age': 7},
{'name': 'smith', 'age': 17},
{'name': 'ben', 'age': 27},
{'name': 'bobby', 'age': 57},
{'name': 'red', 'age': 32},
{'name': 'queen', 'age': 25}
]
result = filter(lambda x: x['age'] >20, people) # 일반적으로 lambda 는 x로 하기로 함
print(list(result))
<h3> 클래스 사용법 </h3>
class Monster():
hp = 100
alive = True
def damage(self, attack):
self.hp = self.hp - attack
if self.hp < 0:
self.alive = False
def status_check(self):
if self.alive:
print('살아있다')
else:
print('죽었다')
m = Monster()
m.damage(120)
m2 = Monster()
m2.damage(90)
m.status_check()
m2.status_check()