黃柏諺python集合set串列或清單list字典dictionary元組tuple
h1>w3schools練習截圖
w3schools程式碼
#黃柏諺 集合{},字典{key:value,},元組(),清單]s= {"台積電", "鴻海", "聯發科"}
t= ("台積電", "鴻海", "聯發科")
list= ["台積電", "鴻海", "聯發科"]
d= {2330:"台積電",2317:"鴻海",2454:"聯發科"}
print("型態" + str(type(s)) + str(s))
print("型態" + str(type(t)) + str(t))
print("型態" + str(type(d)) + str(d))
print("型態" + str(type(list)) + str(list))
#字串與字串才能+所以要用str轉成字串
i = 0
for a in list:
i = i+1
print("台灣第" + str(i) + "大的公司是")
print(" " + a)
'''大區域註解用三個引號set集合沒有順序unordered, 練習使用迴圈輸出集合內的內容'''
w3schools集合方法
Python has a set of built-in methods that you can use on sets.Method | Description |
---|---|
add() | Adds an element to the set |
clear() | Removes all the elements from the set |
copy() | Returns a copy of the set |
difference() | Returns a set containing the difference between two or more sets |
difference_update() | Removes the items in this set that are also included in another, specified set |
discard() | Remove the specified item |
intersection() | Returns a set, that is the intersection of two other sets |
intersection_update() | Removes the items in this set that are not present in other, specified set(s) |
isdisjoint() | Returns whether two sets have a intersection or not |
issubset() | Returns whether another set contains this set or not |
issuperset() | Returns whether this set contains another set or not |
pop() | Removes an element from the set |
remove() | Removes the specified element |
symmetric_difference() | Returns a set with the symmetric differences of two sets |
symmetric_difference_update() | inserts the symmetric differences from this set and another |
union() | Return a set containing the union of sets |
update() | Update the set with the union of this set and others |
w3schools串列或清單方法
Python has a set of built-in methods that you can use on lists.Method | Description |
---|---|
append() | Adds an element at the end of the list |
clear() | Removes all the elements from the list |
copy() | Returns a copy of the list |
count() | Returns the number of elements with the specified value |
extend() | Add the elements of a list (or any iterable), to the end of the current list |
index() | Returns the index of the first element with the specified value |
insert() | Adds an element at the specified position |
pop() | Removes the element at the specified position |
remove() | Removes the item with the specified value |
reverse() | Reverses the order of the list |
sort() | Sorts the list |
w3schools元組方法
Python has two built-in methods that you can use on tuples.Method | Description |
---|---|
count() | Returns the number of times a specified value occurs in a tuple |
index() | Searches the tuple for a specified value and returns the position of where it was found |
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