咕泡【24考研】数学全程班
It1的型别其实就是Int,it2的型别其实就是Teacher.
#define _CRT_SECURE_NO_WARNINGS#include<iostream>#include<vector>usingnamespace std;int main(){
vector<int> v;
for(int i =0; i <10;i ++){
v.push_back(i);
cout << v.capacity()<< endl; 更多见up公告 }