#!/usr/bin/env python
# coding: utf-8

# # Chapter 03 Strings and Console Output
# <img align="left" src="https://i.imgur.com/lnc0qMV.png" />

# In[1]:


# 01 문자열(Strings)

brian = "Always look on the bright side of life!"


# In[2]:


# 02 연습(Practice)

caesar = "Graham"
praline = "John"
viking = "Teresa"

print(caesar)
print(praline)
print(viking)


# In[3]:


# 03 이스케이프 문자(Escaping characters)

'Help! Help! I\'m being repressed!'


# In[4]:


#04 인덱스로 접근하기

"""
    The string "PYTHON" has six characters,
    numbered 0 to 5, as shown below:
    
    +---+---+---+---+---+---+
    | P | Y | T | H | O | N |
    +---+---+---+---+---+---+
    0   1   2   3   4   5
    
    So if you wanted "Y", you could just type
    "PYTHON"[1] (always start counting from 0!)
"""
fifth_letter = "MONTY"[4]

print (fifth_letter)


# In[5]:


# 05 문자열 메소드(Strign Methods)

parrot = "Norwegian Blue"
print (len(parrot))


# In[6]:


# 06 lower() 메소드

parrot = "Norwegian Blue"

print (parrot.lower())


# In[7]:


# 07 upper() 메소드

parrot = "norwegian blue"

print (parrot.upper())


# In[8]:


# 08 str() 메소드

"""Declare and assign your variable on line 4,
    then call your method on line 5!"""

pi = 3.14
print (str(pi))


# In[9]:


print( type(1) )
print( type(1.))
print( type(print) )
print( type("hello"))
print( type(str(1.)))


# In[10]:


# 09 점(.)과 문자열 함수

ministry = "The Ministry of Silly Walks"

print (len(ministry))
print (ministry.upper())


# In[11]:


# 10 문자열 출력 (Printing Strings)

print ("Monty Python")


# In[12]:


# 11 변수(Variables) 출력하기

the_machine_goes = "Ping!"
print(the_machine_goes)


# In[13]:


# 12 문자열 합치기(String Concatenation)

# Print the concatenation of "Spam and eggs" on line 3!

print ("Spam " + "and " + "eggs")


# In[14]:


# 13 명시적 문자열 변환(Explicit String Conversion)

print ("The value of pi is around " + str(3.14))


# In[15]:


# 14 %를 이용한 문자열 포맷팅(String Formatting), #1

string_1 = "Camelot"
string_2 = "place"

print ("Let's not go to %s. 'Tis a silly %s." % (string_1, string_2))


# In[16]:


# 15 %를 이용한 문자열 포맷팅(String Formatting), #2

name = input("What is your name?")
quest = input("What is your quest?")
color = input("What is your favorite color?")

print ("Ah, so your name is %s, your quest is %s, " \
"and your favorite color is %s." % (name, quest, color))


# In[17]:


# 16 이제는 친숙한 내용들

my_string = "xuruiqi"
print( len(my_string) )
print( my_string.upper() )