dict clear
时间: 2023-09-02 07:07:23 浏览: 45
dict clear是Python字典提供的一个方法,用于清空字典中的所有键值对。使用clear方法后,字典将变为空字典。
例如,如果我们有一个字典x={'name': 'Joe', 'age': 18},我们可以使用x.clear()来清空这个字典,运行结果将会是{}。
需要注意的是,使用clear方法只是清空了原始字典,但是其他指向该字典的变量不会被清空。比如,如果我们有另一个变量y,指向原始字典x,当我们使用x.clear()清空x时,y还是指向原来的字典对象,所以y是不变的,但是x变为新的空字典。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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