for_each_综合

for_each //遍历容器

函数原型：for_each(iterator begin, iterator end, _func)
begin 开始迭代器
end 结束迭代器
_func函数或者函数对象

#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;void print1(int val)
{cout << val << " ";
}//仿函数
class print2
{
public:void operator()(int val){cout << val << " ";}
};
void test1()
{vector<int> v;for (int i = 0; i < 10; i++){v.push_back(i);}for_each(v.begin(), v.end(), print1);cout << endl;for_each(v.begin(), v.end(), print2());cout << endl;
}
int main()
{test1();return 0;
}