인공지능/PYTHON

w3schools (2)

bibibig_data 2021. 6. 17. 17:33

list

 

mylist = ["apple", "banana", "cherry"]

thislist = ["apple", "banana", "cherry"]
print(thislist)

thislist = ["apple", "banana", "cherry", "apple", "cherry"]
print(thislist)

thislist = ["apple", "banana", "cherry"]
print(len(thislist)) # 3출력

list1 = ["apple", "banana", "cherry"]
list2 = [1, 5, 7, 9, 3]
list3 = [True, False, False]

list1 = ["abc", 34, True, 40, "male"]

mylist = ["apple", "banana", "cherry"]
print(type(mylist))

thislist = list(("apple", "banana", "cherry")) # note the double round-brackets
print(thislist)           # (( )) = [ ]

thislist = ["apple", "banana", "cherry"]
print(thislist[1])   # banana 출력

thislist = ["apple", "banana", "cherry"]
print(thislist[-1])  # cherry 출력

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "melon", "mango"]
print(thislist[2:5])  # cherry orange kiwi melon 출력

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "melon", "mango"]
print(thislist[:4])   # ['apple', 'banana', 'cherry', 'orange'] 출력

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "melon", "mango"]
print(thislist[2:])   # ['cherry', 'orange', 'kiwi', 'melon', 'mango'] 출력

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "melon", "mango"]
print(thislist[-4:-1]) # ['orange', 'kiwi', 'melon'] 출력

thislist = ["apple", "banana", "cherry"]
if "apple" in thislist:ㅊ
  print("Yes, 'apple' is in the fruits list") # Yes, 'apple' is in the fruits list출력
  
thislist = ["apple", "banana", "cherry"]
thislist[1] = "blackcurrant"
print(thislist)  # ['apple', 'blackcurrant', 'cherry'] 출력

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "mango"]
thislist[1:3] = ["blackcurrant", "watermelon"]
print(thislist) # ['apple', 'blackcurrant', 'watermelon', 'orange', 'kiwi', 'mango'] 출력

thislist = ["apple", "banana", "cherry"]
thislist[1:2] = ["blackcurrant", "watermelon"]
print(thislist) # ['apple', 'blackcurrant', 'watermelon', 'cherry'] 출력

thislist = ["apple", "banana", "cherry"]
thislist[1:3] = ["watermelon"]
print(thislist)  # ['apple', 'watermelon'] 출력

thislist = ["apple", "banana", "cherry"]
thislist.insert(2, "watermelon")
print(thislist)   # ['apple', 'banana', 'watermelon', 'cherry'] 출력

thislist = ["apple", "banana", "cherry"]
thislist.append("orange")
print(thislist)   # ['apple', 'banana', 'cherry', 'orange'] 출력

thislist = ["apple", "banana", "cherry"]
thislist.insert(1, "orange") 
print(thislist)   # ['apple', 'orange', 'banana', 'cherry'] 출력

thislist = ["apple", "banana", "cherry"]
tropical = ["mango", "pineapple", "papaya"]
thislist.extend(tropical)
print(thislist)   # ['apple', 'banana', 'cherry', 'mango', 'pineapple', 'papaya'] 출력

thislist = ["apple", "banana", "cherry"]
thistuple = ("kiwi", "orange")
thislist.extend(thistuple)
print(thislist)   # ['apple', 'banana', 'cherry', 'kiwi', 'orange'] 출력

thislist = ["apple", "banana", "cherry"]
thislist.remove("banana")
print(thislist)   # ['apple', 'cherry'] 출력

thislist = ["apple", "banana", "cherry"]
thislist.pop(1)
print(thislist)   # ['apple', 'cherry'] 출력

thislist = ["apple", "banana", "cherry"]
thislist.pop()
print(thislist)   # ['apple', 'banana'] 출력

thislist = ["apple", "banana", "cherry"] 
del thislist[0]
print(thislist)   # ['banana', 'cherry'] 출력 

thislist = ["apple", "banana", "cherry"]
del thislist    # NameError

thislist = ["apple", "banana", "cherry"]
thislist.clear()
print(thislist)   # [] 출력



  

Loop Lists

 

thislist = ["apple", "banana", "cherry"]
for x in thislist:
  print(x)     # apple
               # banana
               # cherry  출력
               
thislist = ["apple", "banana", "cherry"]
for i in range(len(thislist)):
  print(thislist[i])