stl list 刪除元素

list.remove()和list.remove_if()函數(shù) (list.remove() and list.remove_if() functions)

remove() function is used to remove all occurrences of a given element from the list and function remove_if() is used to remove set of some specific elements from the list.

remove()函數(shù)用于從列表中刪除所有出現(xiàn)的給定元素，而remove_if()函數(shù)用于從列表中刪除某些特定元素的集合。

Example:

例：

List elements are11223344551122Element to remove: 11List element after removing 112233445522Condition to remove some specific elements: all ODD numbersList element after removing all ODD numbers224422

Program:

程序：

#include <iostream> #include <list> using namespace std;int main() {//declaring a list list<int> iList = {11, 22, 33, 44, 55, 11, 22};//declaring iterator to the listlist<int>::iterator l_iter;//printing list elementscout<<"List elements are"<<endl;for (l_iter = iList.begin(); l_iter != iList.end(); l_iter++)cout<< *l_iter<<endl;//remove 11 from the ListiList.remove(11);cout<<"List elements after removing 11"<<endl;for (l_iter = iList.begin(); l_iter != iList.end(); l_iter++)cout<< *l_iter<<endl;//remove all ODD numbersiList.remove_if([](int n){return (n%2!=0); });cout<<"List elements after removing all ODD numbers"<<endl;for (l_iter = iList.begin(); l_iter != iList.end(); l_iter++)cout<< *l_iter<<endl;return 0; }

Output

輸出量

List elements are 11 22 33 44 55 11 22 List elements after removing 11 22 33 44 55 22 List elements after removing all ODD numbers 22 44 22

翻譯自: https://www.includehelp.com/stl/remove-all-occurrences-of-an-element-and-remove-set-of-some-specific-from-the-list.aspx

stl list 刪除元素

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總結

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