python - Python将新项添加到字典[重复](Python add new item to dictionary [duplicate])

Question

This question already has an answer here:

(这个问题在这里已有答案：)

• Add new keys to a dictionary?

  (在字典中添加新密钥？)

  14 answers

  (14个答案)

I want to add an item to an existing dictionary in python.

(我想在python中将项添加到现有字典中。)

For example, this is my dictionary:

(例如，这是我的字典：)

default_data = {
            'item1': 1,
            'item2': 2,
}

I want to add new item such that:

(我想添加新项目，以便：)

default_data = default_data + {'item3':3}

How to achieve this?

(怎么做到这一点？)

  ask by brsbilgic translate from so

Answer 1

default_data['item3'] = 3

Easy as py.

(很容易py。)

Another possible solution:

(另一种可能的方案)

default_data.update({'item3': 3})

which is nice if you want to insert multiple items at once.

(如果你想一次插入多个项目，那就太好了。)