实验任务1

 1 #include<iostream>
 2 #include<string>
 3 #include<vector>
 4 
 5 int main()
 6 {
 7     using namespace std;
 8     
 9     string s1;
10     string s2{"c plus plus"};
11     string s3{s2};
12     string s4=s2;
13         
14     s1="oop";
15     
16     vector<string> v1;
17     v1.push_back(s1);
18     v1.push_back(s2+"1");
19     v1.push_back(s3+"2");
20     v1.push_back(s4+"3");
21     
22     cout<<"output1:";
23     for(auto item:v1)
24         cout<<item<<endl;
25     
26     
27     cout<<"output2:";
28     for(auto p=v1.begin();p!=v1.end();++p)
29         cout<<*p<<endl;
30     
31     cout<<"output3:";
32     for(auto i=0;i<v1.size();++i)
33         cout<<v1[i]<<endl;
34         
35         
36     vector<string> v2{v1.rbegin(),v1.rend() };
37     cout<<"v2:"<<endl;
38     for(auto item :v2)
39         cout<<item<<endl;  
40 }