STL——容器（deque） deque 的赋值

 1 #include <iostream>
 2 #include <deque>
 3 
 4 using namespace std;
 5 
 6 int main()
 7 {
 8     deque<int> deqInt_A, deqInt_B;
 9     
10     deqInt_A.push_back(1);
11     deqInt_A.push_back(2);
12     deqInt_A.push_back(3);
13     deqInt_A.push_back(4);
14 
15     deqInt_B.assign(deqInt_A.begin(), deqInt_A.end());
16 
17     cout << "deqInt_B 中的元素为：" << endl;
18     for (deque<int>::iterator it = deqInt_B.begin(); it != deqInt_B.end(); it++)
19     {
20         cout << *it << " ";
21     }
22 
23     return 0;
24 }

 1 #include <iostream>
 2 #include <deque>
 3 
 4 using namespace std;
 5 
 6 int main()
 7 {
 8     deque<int> deqInt_A;
 9     deqInt_A.assign(4, 888);
10 
11     cout << "deqInt_A 中的元素为：" << endl;
12     for (deque<int>::iterator it = deqInt_A.begin(); it != deqInt_A.end(); it++)
13     {
14         cout << *it << " ";
15     }
16 
17     return 0;
18 }

 1 #include <iostream>
 2 #include <deque>
 3 
 4 using namespace std;
 5 
 6 int main()
 7 {
 8     deque<int> deqInt_A, deqint_B;
 9     deqInt_A.assign(4, 888);
10     deqint_B = deqInt_A;            // operator= 重载，可以直接进行赋值
11 
12     cout << "deqint_B 中的元素为：" << endl;
13     for (deque<int>::iterator it = deqint_B.begin(); it != deqint_B.end(); it++)
14     {
15         cout << *it << " ";
16     }
17 
18     return 0;
19 }

 1 #include <iostream>
 2 #include <deque>
 3 
 4 using namespace std;
 5 
 6 int main()
 7 {
 8     deque<int> deqInt_A, deqint_B;
 9     deqInt_A.assign(4, 111);
10     deqint_B.assign(5, 222);
11 
12     cout << "deqInt_A 中的元素为：" << endl;
13     for (deque<int>::iterator it = deqInt_A.begin(); it != deqInt_A.end(); it++)
14     {
15         cout << *it << " ";
16     }
17     cout << "\ndeqint_B 中的元素为：" << endl;
18     for (deque<int>::iterator it = deqint_B.begin(); it != deqint_B.end(); it++)
19     {
20         cout << *it << " ";
21     }
22     cout << "\n\nswap 进行翻转" << endl;
23     deqInt_A.swap(deqint_B);
24     cout << "deqInt_A 中的元素为：" << endl;
25     for (deque<int>::iterator it = deqInt_A.begin(); it != deqInt_A.end(); it++)
26     {
27         cout << *it << " ";
28     }
29     cout << "\ndeqint_B 中的元素为：" << endl;
30     for (deque<int>::iterator it = deqint_B.begin(); it != deqint_B.end(); it++)
31     {
32         cout << *it << " ";
33     }
34     return 0;
35 }