Hello world, 연산자, 변수, 문자열

### Hello World
print("*** Hello world")
print("hello world")



### 연산자
print("\n*** 연산자")
print(8 * 3.57)

print(5 + 30 * 20)
print((5 + 30) * 20)
print(((5 + 30) * 20) / 10)



### 변수
print("\n*** 변수")
fred = 100
print(fred)

fred = 200
john = fred
print(john)



### 문자열
print("\n*** 문자열")
fred = "Why do gorillas have big nostrils? Big fingers!!"
print(fred)

fred = '''\nHow do dinosaurs pay their bills?
With tyrannosaurus checks!'''
print(fred)


# 문자열에 값을 포함하기          %s
myscore = 1000
message = 'I scored %s points'
print("\n" + message % myscore)

joke_text = '%s : a devide for finding furniture in the dart'
bodypart1 = 'Knee'
bodypart2 = 'Shin'
print("\n" + joke_text % bodypart1)
print(joke_text % bodypart2)

nums = 'What did the number %s say to the number %s? Nice belt!!'
print("\n" + nums % (0, 8))


# 문자열 곱하기
print("\n" + 10 * 'a')

spaces = ' ' * 25;
print("\n" + '%s 12 Butts Wynd' % spaces)