python 示例

字典update()方法 (Dictionary update() Method)

update() method is used to update the dictionary by inserting new items to the dictionary.

update()方法用于通過將新項目插入字典來更新字典。

Syntax:

句法：

dictionary_name.setdefault(iterable)

Parameter(s):

參數：

• iterable – It represents an iterbale object or a dictionary to be inserted in the dictionary.

  可迭代 –表示要在字典中插入的iterbale對象或字典。

Return value:

返回值：

It returning nothing.

它什么也沒返回。

Example:

例：

# Python Dictionary update() Method with Example# dictionary declaration student = {"roll_no": 101,"name": "Shivang","course": "B.Tech","perc" : 98.5 }# printing dictionary print("data of student dictionary...") print(student)# inserting an item student.update({'city' : 'Indore'})# printing dictionary after update() print("data of student dictionary after update()...") print(student)# inserting multiple items student.update({'city' : 'Indore', 'address' : 'Tech park'})# printing dictionary after update() print("data of student dictionary after update()...") print(student)

Output

輸出量

data of student dictionary... {'roll_no': 101, 'name': 'Shivang', 'course': 'B.Tech', 'perc': 98.5} data of student dictionary after update()... {'roll_no': 101, 'name': 'Shivang', 'course': 'B.Tech', 'perc': 98.5, 'city': 'Indore'} data of student dictionary after update()... {'roll_no': 101, 'name': 'Shivang', 'course': 'B.Tech', 'perc': 98.5, 'city': 'Indore', 'address': 'Tech park'}

翻譯自: https://www.includehelp.com/python/dictionary-update-method-with-example.aspx

python 示例

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