defaultdict in Python 2.5 greatly reduced the need for dict 's setdefault method. This question is for our collective education: What is ... ... <看更多>

Python 字典（Dictionary） setdefault()方法. 描述. Python 字典setdefault() 函数和get() 方法类似, 如果键不存在于字典中，将会添加键并将值设为默认值。 ... <看更多>

dict.setdefault(). python 中dict 的setdefault() 方法, 可以给字典添加一条内容 def setdefault(self, k, d=None): # real signature unknown; restored from ... ... <看更多>

In this Python Programming video tutorial you will learn about the setdefault method.Dictionaries are the ... ... <看更多>