蘇詩涵.HTML.CSS.JavaSctipt.Java

w3schools截圖 w3schools程式碼 #蘇詩涵 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''' 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 Python has a set of built-in methods that you can use on...

w3school練習程式碼 #字典 keys:values, 蘇詩涵 #w3schools原來 字串:字串,改成 整數:字串 a = { #市場價值最大的五家公司 2330: "台積電", 2317: "鴻海", 2454: "聯發科", 2412: "中華電", 6505: "台塑化" } print(a) print(a[6505]) print(a.get(2330))#功能同 a[2330] print(a.keys()) #keys()方法列出key搜尋鍵 print(a.values()) #keys()方法列出values值 b = a.copy() print("列出b " + str(b)) print(b[2317]) print(b.clear()) a.update({2308: "台達電"}) print(a.values()) print("用迴圈列出字典a的所有值") for t in a: print(a[t]) a Method Description clear() Removes all the elements from the dictionary copy() Returns a copy of the dictionary fromkeys() Returns a dictionary with the specified keys and value get() Returns the value of the specified key items() Returns a list containing a tuple for each key value pair keys() Returns a list containing the dictionary's keys pop() Removes the element with the specified key popitem() Removes the last inserted key-value pair setdefault() Re...