C++ vector 容器淺析[01] ~ 實例在容器最後移除和插入數據
C++ vector 容器淺析[01] ~ 實例在容器最後移除和插入數據
資料來源: https://www.runoob.com/w3cnote/cpp-vector-container-analysis.html
純C++線上編譯測試: https://www.tutorialspoint.com/compile_cpp_online.php
純C 線上編譯測試: https://www.tutorialspoint.com/compile_c_online.php
#include <string>
#include <vector>
#include <iostream>
using namespace std;
int main()
{
vector<int>obj(10,0);//最大容器为10,都初始化为0
for(int i=0;i<obj.size();i++)
{
cout<<obj[i]<<",";
}
cout<<"\n"<<endl;
for(int i=0;i<10;i++)//push_back(elem)在数组最后添加数据
{
obj.push_back(i);
}
for(int i=0;i<obj.size();i++)
{
cout<<obj[i]<<",";
}
cout<<"\n"<<endl;
for(int i=0;i<5;i++)//去掉数组最后一个数据
{
obj.pop_back();
}
for(int i=0;i<obj.size();i++)//size()容器中实际数据个数
{
cout<<obj[i]<<",";
}
return 0;
}