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python实现从字典中删除元素的方法

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Release: 2016-06-06 11:15:18
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本文实例讲述了python实现从字典中删除元素的方法。分享给大家供大家参考。具体分析如下:

python的字典可以通过del方法进行元素删除,下面的代码详细演示了这一过程

# Create an empty dictionary
d = {}
# Add an item
d["name"] = "Fido"
assert d.has_key("name")
# Delete the item
del d["name"]
assert not d.has_key("name")
# Add a couple of items
d["name"] = "Fido"
d["type"] = "Dog"
assert len(d) == 2
# Remove all items
d.clear()
assert len(d) == 0
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希望本文所述对大家的Python程序设计有所帮助。

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