c++ vector pop_back() 与pop_back()

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2023-01-13


#include <string.h>
#include <vector>
#include <iostream>
using namespace std;

int main()
{
vector<int>obj;//创建一个向量存储容器 int
for(int i=0;i<10;i++) // push_back(elem)在数组最后添加数据
{
obj.push_back(i);
cout<<obj[i]<<",";
}

for(int i=0;i<5;i++)//去掉数组最后一个数据
{
obj.pop_back();
}

cout<<"\n"<<endl;

for(int i=0;i<obj.size();i++)//size()容器中实际数据个数
{
cout<<obj[i]<<",";
}
cout<<"\n"<<endl;
return 0;
}

0,1,2,3,4,5,6,7,8,9,

0,1,2,3,4,


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