编辑代码

#include <iostream>
using namespace std;
#include <vector>
#include <algorithm>

class myPrint {
public:
	void operator()(int val) {
		cout << val << " ";
	}
};

void test01() {
	vector<int> v1;
	vector<int> v2;
	for (int i = 0; i < 10; i++) {
		v1.push_back(i);
		v2.push_back(i+5);
	}

	vector<int> vTarget;
	//取两个里面较小的值给目标容器开辟空间
	vTarget.resize(min(v1.size(), v2.size()));

	//返回目标容器的最后一个元素的迭代器地址
	vector<int>::iterator itEnd = 
        set_intersection(v1.begin(), v1.end(), v2.begin(), v2.end(), vTarget.begin());

	for_each(vTarget.begin(), itEnd, myPrint());
    // for_each(vTarget.begin(), vTarget.end(), myPrint());
	cout << endl;
}

int main() {
	test01();
	return 0;
}