用于从集合中删除项目的 Python 程序
programmingpythonserver side programming更新于 2025/3/14 10:52:17
在本文中,我们将学习如何从集合中删除项目。我们将看到可以轻松从集合中删除项目的不同方法。
假设我们有以下输入 -
myset = {"bmw", "tesla", "toyota", "ford", "mercedes"}
删除一个项目后,输出应如下所示 -
{'tesla', 'ford', 'bmw', 'mercedes'}
使用 remove() 方法从集合中删除项目
使用 remove() 方法,删除不在集合中的项目时会引发错误。
示例
# Creating a Set myset = {"bmw", "tesla", "toyota", "ford", "mercedes"} print("Set = \n",myset) # Applying the remove() method to remove an element myset.remove("toyota") # Display the updated Set print("\nSet (after removing an element) =\n",myset)
输出
Set =
{'mercedes', 'bmw', 'toyota', 'tesla', 'ford'}
Set (after removing an element) =
{'mercedes', 'bmw', 'tesla', 'ford'}
使用 discard() 方法从集合中删除项目
使用 discord() 方法,删除不在集合中的项目不会引发错误。
示例
# Creating a Set myset = {"javascript", "php", "jquery", "angular", "react"} print("Set = \n",myset) # Applying the remove() method to remove an element myset.discard("php") # Display the updated Set print("\nSet (after removing an element) =\n",myset)
输出
Set =
{'javascript', 'react', 'angular', 'php', 'jquery'}
Set (after removing an element) =
{'javascript', 'react', 'angular', 'jquery'}
使用 pop() 方法从集合中删除项目
示例
# Creating a Set myset = {"bmw", "tesla", "toyota", "ford", "mercedes"} print("Set = \n",myset) # Applying the pop() method to remove an element res = myset.pop() # Displaying the removed item print("\nRemoved item from the Set =\n",res) # Display the updated Set print("\nSet (after removing an element) =\n",myset)
输出
Set =
{'javascript', 'react', 'angular', 'php', 'jquery'}
Set (after removing an element) =
{'javascript', 'react', 'angular', 'jquery'}
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python 参考教程 - 该教程包含有关 python 的更多信息:https://www.cainiaomax.com/python/

