我正在嘗試將字典組合成一個字典，同時保留以前的值。我在下面提供了一個示例代碼。理想情況下，我正在嘗試完成以下任務：dict3 = {"dict1" : {"North America" : "United States" , "Europe" : "France" , "Asia" : "China" }, "dict2" : {"North America" : "Canada" , "Europe" : "Spain" , "Asia" : "Japan"}}dict1 = {"North America" : "United States" , "Europe" : "France" , "Asia" : "China"}dict2 = {"North America" : "Canada" , "Europe" : "Spain" , "Asia" : "Japan"}dict3 = {}targetdict = {"dict1" : {"North America" : "United States" , "Europe" : "France" , "Asia" : "China" }, "dict2" : {"North America" : "Canada" , "Europe" : "Spain" , "Asia" : "Japan"}}dict3.update(dict1)print(dict3)dict3.update(dict2)print(dict3)我希望 dict3 與 targetdict 相同。所以有效地 print(dict3) 與 print(targetdict) 的結果相同。我希望將許多潛在的字典添加到“dict3”變量中，例如，所有字典都可以將“北美”作為鍵。任何反饋將不勝感激！