1 #include <boost/foreach.hpp>
2 #include <iostream>
3 #include <vector>
4 #include <boost/foreach.hpp>
5 using namespace std;
6 using namespace boost;
7 class Test
8 {
9 public:
10 Test(int a){
11 age=a;
12 }
13 int age;
14 bool operator < ( const Test& rhs ) const { //升序排序时必须写的函数
15 return age < rhs.age;
16 }
17 bool operator > ( const Test& rhs ) const { //降序排序时必须写的函数
18 return age > rhs.age;
19 }
20 };
21 int main(void)
22 {
23 vector<Test> data;
24 Test t1(1);
25 Test t2(2);
26 Test t3(3);
27 Test t4(4);
28 data.push_back(t1);
29 data.push_back(t2);
30 data.push_back(t3);
31 data.push_back(t4);
32 //1. 遍历
33 for (vector<Test>::iterator it=data.begin(); it!=data.end(); it++) {
34 cout<<it->age<< std::endl;
35 }
36 //2. 排序
37 std::sort ( data.begin(), data.end(),greater<Test>() ); //lesss 升序
38 //3. boost遍历
39 BOOST_FOREACH(const Test& t,data)
40 {
41 cout<<t.age<< std::endl;
42 }
43 //4. 删除多个元素
44 for ( vector<Test>::iterator it = data.begin(); it != data.end(); ) {
45 if ( it->age == 1 || it->age == 3 ) {
46 it = data.erase ( it );
47 } else {
48 it++;
49 }
50 }
51 std::sort ( data.begin(), data.end(),less<Test>() ); //lesss 升序
52 BOOST_FOREACH(const Test& t,data)
53 {
54 cout<<t.age<< std::endl;
55 }
57 return 0;
58 }
