C++ for循环的几种用法

#include <algorithm>
#include <iostream>
#include <vector>

using namespace std;

int main(int, char **)
{
    vector<int> list({0, 1, 2, 3, 4, 5, 6, 7, 8, 9});

    /* 下标法 */
    for (size_t i = 0; i < list.size(); i++) {
        cout<<list[i]; //or list.at(i)
    }

    /* 迭代器 */
    for (auto iter = list.begin(); iter != list.end(); ++iter) {
        cout<<*iter;
    }

    /* STL函数 */
    for_each(list.begin(), list.end(), [](int item){ cout<<item; });

    /* C++11新增加 */
    for(auto each : list) {
        cout<<each;
    }
}