파이썬 함수

함수

def sum(a,b) :
    print('더하자!')
    return a+b

result = sum(1,2)
print(result)

조건문

def is_adult(age):
    if age > 20:
        print('성인입니다')
    else:
        print('청소년입니다')

is_adult(15)

반복문 (리스트예제)

fruits = ['사과','배','배','감','수박','귤','딸기','사과','배','수박']

count = 0
for fruit in fruits:
    if fruit == '사과':
        count += 1

print(count)

반복문 (딕셔너리예제)

people = [{'name': 'bob', 'age': 20}, 
          {'name': 'carry', 'age': 38},
          {'name': 'john', 'age': 7},
          {'name': 'smith', 'age': 17},
          {'name': 'ben', 'age': 27}]

for person in people:
    if person['age'] > 20:
        print(person['name'])