初始化,插入,删除,遍历,打印,迭代器
/*
https://blog.csdn.net/msdnwolaile/article/details/52708144
*/
#include<stdio.h>
#include<vector>
#include<iostream>
using namespace std;
int main()
{
int i = 0;
vector<int> vec;
for(i;i<10;i++){
vec.push_back(i);//尾部插入数字:vec.push_back(i);
}
for(unsigned int i=0; i<vec.size(); i++)
{
cout<<"初始化遍历:"<<vec[i]<<endl; //结果为:0,1,2,3,4,5,6,7,8,9
}
vector<int>::iterator it;
for(it = vec.begin(); it!=vec.end(); it++){
cout<<"迭代遍历:"<<*it<<endl; //结果为:0,1,2,3,4,5,6,7,8,9
}
vec.insert(vec.begin()+4,0);
for(unsigned int i=0; i<vec.size(); i++){
cout<<"插入遍历:"<<vec[i]<<endl; //结果为:0,1,2,3,0,4,5,6,7,8,9
}
vec.erase(vec.begin()+2);
for(unsigned int i=0; i<vec.size(); i++){
cout<<"擦除遍历:"<<vec[i]<<endl; //结果为:0,1,3,0,4,5,6,7,8,9
}
vec.erase(vec.begin()+3,vec.begin()+5);
for(vector<int>::iterator it = vec.begin(); it!=vec.end(); it++){ //结果为:0 ,1 ,3 ,5,6,7,8,9
cout<<"迭代遍历:"<<*it<<endl;
}
return 0;
}
打印vector内容以及random_shuffle打乱内容
shuffle 洗牌
#include <iostream>
#include <vector>
#include <iterator>
#include <algorithm>
using namespace std;
int main (int argc, char *argv[])
{
int n = 10;
vector<int> v;
//append integers 0 to n-1 to v
for (int i = 0; i < n; ++i) {
v.push_back(i);//插入元素
}
//random shuffle the values of v
random_shuffle (v.begin(), v.end());
//print all values of v to screen
copy (v.begin(), v.end(), ostream_iterator<int> (cout, "\n"));
return 0;
}
转自: https://blog.csdn.net/cywosp/article/details/7317977