vector遍历删除特定项目和遍历删除所有项目方法

 1 #include <iostream>
 2 #include <vector>
 3 #include <string>
 4 
 5 using namespace std;
 6 
 7 int main(void)
 8 {
 9     vector<string> vecStr;
10     vecStr.push_back("aaa");
11     vecStr.push_back("bbb");
12     vecStr.push_back("ccc");
13     vecStr.push_back("ddd");
14     vecStr.push_back("eee");
15     vecStr.push_back("fff");
16     vecStr.push_back("ggg");
17 
18     for(vector<string>::iterator iter = vecStr.begin(); iter != vecStr.end(); ++iter)
19     {
20         cout << (*iter) << endl;
21     }
22     cout << "----------------------" << endl;
23 
24     
25     for(vector<string>::iterator iter = vecStr.begin(); iter != vecStr.end();)
26     {
27         cout << "execute item: " << (*iter) << endl;
28         if("ggg" == (*iter))
29         {            
30             cout << iter._Ptr << "  " << *(iter._Ptr) << endl;
31             // 推荐方式
32             iter = vecStr.erase(iter);
33             cout << iter._Ptr << "  " << *(iter._Ptr) << endl;
34         }
35         else
36         {
37              ++iter;
38         }
39     }
40     
41     cout << "----------------------" << endl;
42     for(vector<string>::iterator iter = vecStr.begin(); iter != vecStr.end(); ++iter)
43     {
44         cout << (*iter) << endl;
45     }
46     
47 }

1     for(vector<string>::iterator iter = vecStr.begin(); iter != vecStr.end();)
2     {
3         cout << "execute item: " << (*iter) << endl;          
4         cout << iter._Ptr << "  " << *(iter._Ptr) << endl;
5 
6         iter = vecStr.erase(iter);
7 
8         cout << iter._Ptr << "  " << *(iter._Ptr) << endl;
9     }