생활코딩-Python 제어문

1. Boolean

#boolean의 데이터 값은 참 거짓 단 2개뿐이다~
print(True)
print(False)

---

2. Comparison Operator

print('1 == 1', 1 == 1)
print('1 == 2', 2 == 1)
print('1 < 2', 1 < 2)
print('1 > 2', 1 > 2)
print('1 >= 1', 1 >= 1)
print('2 >= 1', 2 >= 1)
print('1 != 1', 1 != 1)
print('2 != 1', 2 != 1)

---

3. Conditional Statement

# 012
print(0)
if True:
    print(1)
print(2)
 
print('---')
 
# 02
print(0)
if False:
    print(1)
print(2)

input_id = input('id: ')
id = 'Myoung'

if input_id == id:
    print("welcome")

---

# 013
print(0)
if True:
    print(1)
else:
    print(2)
print(3)
print('---')
# 023
print(0)
if False:
    print(1)
else:
    print(2)
print(3)

---

# 014
print(0)
if True:
    print(1)
elif True:
    print(2)
else:
    print(3)
print(4)
print('---')
# 024
print(0)
if False:
    print(1)
elif True:
    print(2)
else:
    print(3)
print(4)
print('---')
# 034
print(0)
if False:
    print(1)
elif False:
    print(2)
else:
    print(3)
print(4)

---

4. Loop

반복문과 꼭 함께 다뤄야 하는 리스트(List)

반복문과 리스트는 단짝입니다!
리스트 안에 있는 요소들을 하나씩 꺼내서 반복적으로 처리해야 할 때 for문을 함께 사용합니다.

for 변수 in 리스트 이런 느낌으로 씁니당!

names = ['Myoung', 'HyunQ', 'Lee', 'Kim']
for name in names:
    print('Hello, '+name+' . Bye, '+name+'.')

---

Multi_Demensional Loop

persons = [
    ['Myoung', 'Suwon', 'WEB'],
    ['HyunQ', 'Somewhere', 'WEB'],
    ['Lee', 'Seoul', 'Rev'],
]
print(persons[0][0])

for person in persons:
    print(person[0] + ', ' + person[1] + ', ' + person[2])

person = ['Kim', 'Incheon', 'PWN']
name = person[0]
address = person[1]
interest = person[2]
print(name, address, interest)

name, address, interest = ['Rad', 'Boston', 'Mobile']
print(name, address, interest)

for name, address, interest in persons:
    print(name + ', ' + address + ', ' + interest)

---

Dictionary_Loop

person = {'name':'Myoung', 'address':'Suwon', 'interest':'WEB'}
print(person['name'])

for key in person:
    print(key, person[key])

persons = [
    {'name':'Daniel', 'address':'Seoul', 'interest':'Web'},
    {'name':'Woow', 'address':'Seoul', 'interest':'IOT'},
    {'name':'Gini', 'address':'Tongyeong', 'interest':'REV'}
]

print('==== persons =====')
for person in persons:
    for key in person:
        print(key, ':', person[key])
    print('-------------')