vector，增加查改

#include<iostream>#include<stdio.h>#include<string.h>#include<fstream>#include<sstream>#include<iomanip>#include<string>#include<queue>#include<vector>using namespace std;int main(){//使用vector，增加查改vector<int> i;//增i.push_back(1);i.push_back(2);i.push_back(3);//遍历for(int j=0;j<i.size();j++)cout<<i[j]<<endl;//也可以这样cout<<i.operator [](j)<<endl;//查找for(int jj=0;jj<i.size();jj++){if(i[jj]==2){cout<<i[jj]<<endl;}}//用迭代器遍历for(vector<int>::iterator j1=i.begin();j1!=i.end();j1++){cout<<*j1<<endl;}//删除i[1]=4;vector<int>::iterator jjj=i.begin();jjj+=1;i.erase(jjj);for( j=0;j<i.size();j++)cout<<i[j]<<endl;//也可以这样cout<<i.operator [](j)<<endl;//查找return 0;}