C++ Vector erase()
C++ Vector erase()
它删除迭代器指向的指定元素
使用erase()函数擦除第三个元素
语法
考虑 Vector v。语法将是:
v.erase(pos);
v.erase(start_iterator,end_iterator);
参数
pos : 它定义了要从 Vector 中删除的元素的位置。
(start_iterator，end_iterator): 它定义要从 Vector 中删除的元素的范围。
返回值
它不返回任何值。
示例1
让我们看一个简单的示例。
#include<iostream>
#include<vector>
using namespace std;
int main()
{
vector<char> v{'C','+','#'};
v.erase(v.begin()+1);
for(int i=0;i<v.size();i++)
cout<<v[i];
return 0;
}
输出:
示例2
让我们看一个简单的示例
#include<iostream>
#include<vector>
using namespace std;
int main()
{
vector<string> fruit{"mango","apple","strawbery","kiwi","banana"};
cout<<"fruit names are :";
for(int i=0;i<fruit.size();i++)
cout<<fruit[i]<<" ";
cout<<'\n';
fruit.erase(fruit.begin()+1,fruit.begin()+3);
cout<<"After removing apple and strawbery fruits,"<<'\n';
for(int i=0;i<fruit.size();i++)
cout<<fruit[i]<<" ";
return 0;
}
输出:
fruit names are :mango, apple,strawberry, kiwi, banana
After removing apple and strawbery fruits,
Mango, kiwi, banana
