w3schools截圖 程式碼 a ={ #台灣股票市場價值最大,何建誠python 2330: "台積電", 2317: "鴻海", 2454: "聯發科", 2412: '中華電'} print(a) print("用迴圈印出所有值") for t in a: print(a[t] +" 用get()方法 " + a.get(t)) a.update({1108:"幸福"}) print(a) a.popitem() print(a) a.update({6505:"台塑化"}) a.update({2308:"台達電"}) print(a.keys()) print("練習values方法") print(a.values()) print("練習items方法") print(a.items()) w3schools字典方法 Python has a set of built-in methods that you can use on dictionaries. Method方法 Description說明 clear() 移除字典的Removes all the elements項目(items) 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() 移除某個項目Removes the element with the specified key popitem(...
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