print("Hello World!")

print("First", "Second", "Third")

print("Hello World!") #English
print("Bonjour le monde") #Francais
print("Hallo Welt") #Deutsch

print("New... \n")
print("Line")

b = 3 #將變數b的值設為3
c = 4 #將變數c的值設為4
a = b + c #將變數a的值設為b與c的和
print("a =", a) #a = 7

b = 3 #將變數b的值設為3
c = 4 #將變數c的值設為4

a = b + c #將變數a的值設為b與c的和
print("a =", a) #a = 7

a = b - c #將變數a的值設為b與c的差
print("a =", a) #a = -1

a = b * c #將變數a的值設為b與c的積
print("a =", a) #a = 12

a = b / c #將變數a的值設為b與c的商
print("a =", a) #a = 0.75

a = b % c #將變數a的值設為b/c的餘數
print("a =", a) #a = 3

a = 1 #int(整數)
b = 0.666 #float(浮點數/小數)
c = "12345" #string(字串)

a = 3
b = 4
c = 5
d = 6
e = 7
f = 8

a += 1 #a = a+1 -> 4
b -= 1 #b = b-1 -> 3
c *= 3 #c = c*3 -> 15
d /= 2 #d = d/2 -> 3
e %= 3 #e = e%3 -> 1

f**=3 #f = f*f*f(f的三次方) -> 512

First = 95
Second = 27

first = "95"
second = "27"

PlusInt = First + Second
PlusString = first + second

#TypeError: can onlyconcatenate str (not "int") to str
PlusIntStr = first + Second 

print("PlusInt =", PlusInt) #PlusInt = 122
print("PlusString =", PlusString) #PlusString = 9527

answer = input("Question 01 ")

print(type(answer)) #<class 'str'>
print(answer)

answer = int(answer)
print(type(answer)) #<class 'int'>
print(answer)

electricity = input()

if electricity >= 10:
  print("好電！！！")

if 條件一:
  條件一成立時會執行的東東 #記得縮排

electricity = input()

if electricity >= 10:
  print("好電！！！")

if 條件一:
  條件一成立時要執行的東東
  
elif 條件二:
  如果條件一沒成立＋條件二成立時要執行的東東
  
elif 條件三:
  如果條件一沒成立＋條件二沒成立＋條件三成立時要執行的東東
  
else:
  以上條件全都沒成立時要執行的東東

a = 10

if a == 10:
  print("在if的時候就成立啦") #程式在這停止執行
  
elif a == 7:
  print("在elif的時候成立啦")
  
elif a == 5:
  print("雖然比較後面但還是在elif的時候成立啦")
  
else:
  print("哭哭都沒成立")

a = 7

if a == 10:
  print("在if的時候就成立啦") 
  
elif a == 7:
  print("在elif的時候成立啦") #程式在這停止執行
  
elif a == 5:
  print("雖然比較後面但還是在elif的時候成立啦")
  
else:
  print("哭哭都沒成立")

a = 5

if a == 10:
  print("在if的時候就成立啦") 
  
elif a == 7:
  print("在elif的時候成立啦") 
  
elif a == 5:
  print("雖然比較後面但還是在elif的時候成立啦") #程式在這停止執行
  
else:
  print("哭哭都沒成立")

a = 504

if a == 10:
  print("在if的時候就成立啦") 
  
elif a == 7:
  print("在elif的時候成立啦") 
  
elif a == 5:
  print("雖然比較後面但還是在elif的時候成立啦")
  
else:
  print("哭哭都沒成立") #程式在這停止執行

time = int(input("現在幾點了？！"))

if time == 0 or time == 24:	#or代表兩邊有其中一個條件成立就可以執行
  print("midnight")
  
elif time >= 6 and time < 12:	#and代表兩邊條件都要成立才可以執行
  print("Good Morning")
  
elif time == 12:
  print("Lunch time!")
  
elif time > 12 and time <= 17:
  print("Good Afternoon")

elif time > 17 and time <= 19:
  print("Good Evening")
  
elif (time > 19 and time < 24) or (time > 0 and time < 6):
  print("Good Night")
  
else:
  print("Error")

a = 3

print(a > 2) #True
print(a > 4) #False
print(a != 3) #False
print(not(a > 4)) #True

for i in range(0,5):
  print(i)

sum = 0

for i in range(0,5):
  sum += i #sum = sum + i
  print(sum)

lecturer = "Penguin"

for i in lecturer:
  print(i)

a = 10

while a != 2:
  a -= 2 #a = a - 2
  print(a)

print(a)

while 條件一：
  條件一成立時會一直重複執行的動作

answer = "來自抹茶冰淇淋的靈魂拷問"
while answer:
  answer = input("抹茶冰淇淋好吃嗎？")
  if answer == "當然不，那是世界上最恐怖的東西":
    break
print("英雄所見略同！")

lst = [1415, "summer", 3.1415926, [1,2,3]]
print(lst[1]) #summer

lst.remove("summer")
print(lst[1]) #3.1415926

names = [] #宣告一個空list
num = int(input("How many club members are you going to deal with?"))

for i in range(0, num):
  names.append(input("Name please?")) #在list的最末端新增一個輸入值
  
print(names)

eco_friendly = list("How dare you?!") #將字串轉成list
print(eco_friendly) #['H', 'o', 'w', ' ', 'd', 'a', 'r', 'e', ' ', 'y', 'o', 'u', '?', '!']

eco_friendly.pop() #刪除最後一個元素
print(eco_friendly) #['H', 'o', 'w', ' ', 'd', 'a', 'r', 'e', ' ', 'y', 'o', 'u', '?']

eco_friendly.pop(2) #刪除索引值2，也就是第三個元素
print(eco_friendly) #['H', 'o', ' ', 'd', 'a', 'r', 'e', ' ', 'y', 'o', 'u', '?']

eco_friendly.remove('o') #移除第一個'o'
print(eco_friendly) #['H', ' ', 'd', 'a', 'r', 'e', ' ', 'y', 'o', 'u', '?']

lst = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

print(lst[::]) #[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
print(lst[2::]) #[2, 3, 4, 5, 6, 7, 8, 9]
print(lst[:6:]) #[0, 1, 2, 3, 4, 5]
print(lst[::2]) #[0, 2, 4, 6, 8]
print(lst[2:6:2]) #[2, 4]

串列名[起始位置的索引值:結束位置的索引值＋1:間隔]

lst = [1,2,3,4,5]

for i in lst:
  print(i)

word = input("I need a word ") #輸入單字

v = 0 #初始化母音數量
c = 0 #初始化子音數量
vowels = "aeiou" #母音列表
lst_w = list(word) #將字串轉成list

for i in lst_w: #讀取字串中每個字母，並檢查
  if i in vowels: #如果是母音列表中的其中一個
    v += 1 
  else: #若是母音列表以外的任意字母
    c += 1

print("Vowel(s): " + str(v) + "\nConsonant: " + str(c))

nums = "13 14 15"
nums_lst = nums.split()
print(nums_lst) #['13', '14', '15']

strs = "Summer camp is great!"
strs_lst = strs.split()
print(strs_lst) #['Summer', 'camp', 'is', 'great!']

S = "AHH this is a string"
print(S.find("is"))
print(S.count("is"))

name = input("Name please?")
age = input("Age please?")
personal_id = input("ID please?")
print("So your name is {}, you are {} year(s) old, and your ID number is {}. ".format(name, age, personal_id))

en_to_french = {"red": "rouge", "blue": "bleu", "green": "vert"}
print("Red in French is {}.".format(en_to_french["red"])
print("Blue in French is {}.".format(en_to_french["blue"])
print("Green in French is {}.".format(en_to_french["green"])

en_to_french = {"red": "rouge", "blue": "bleu", "green": "vert"}
en_to_french.update({"blue": "blue"})
en_to_french.update({"yellow": "jaune"})
print(en_to_french)

en_to_french = {"red": "rouge", "blue": "bleu", "green": "vert", "yellow": "jaune"}
del en_to_french["blue"]
del en_to_french["red"]
print(en_to_french)