vector容器

 1 #include<iostream>
 2 #include<Windows.h>
 3 #include<vector>
 4 #include<deque>
 5 using namespace std;
 6 void prinfVector(vector<int> &v)
 7 {//vector迭代器支持随机访问
 8     for (vector<int>::iterator it=v.begin();it!=v.end();it++)
 9     {
10         //可以修改容器内容
11         if (*it==3)
12         {
13             *it = 33333;
14         }
15         cout << *it << "  ";
16     }
17     cout << endl;
18 }
19 
20 //扩展，只读访问Vector
21 void prinfVectorconst(const vector<int> &v)
22 {//vector迭代器支持随机访问
23     for (vector<int>::const_iterator it = v.begin(); it != v.end(); it++)
24     {
25         //*it = 100; 无法修改容器内容
26         cout << *it << "  ";
27     }
28     cout << endl;
29 }
30 
31 void test1()
32 {//初始化构造函数
33     vector<int> v1;
34     for (size_t i = 0; i < 10; i++)
35     {
36         v1.push_back(i);
37     }
38     vector<int> v2(v1);
39     vector<int> v3(v1.begin(),v1.end());
40     vector<int> v4(13,5);
41     cout << "初始化构造函数: " << endl;
42     prinfVector(v1);
43     prinfVector(v2);
44     prinfVector(v3);
45     prinfVector(v4);
46 
47     //赋值
48     cout << "赋值: " << endl;
49     vector<int> v5;
50     v5 = v1;
51     prinfVector(v5);
52 
53     vector<int> v6;
54     v6.assign(v5.begin(),v5.end());
55     prinfVector(v6);
56 
57     vector<int> v7;
58     v7.assign(5,19);
59     prinfVector(v7);
60 
61     //容量和大小
62     cout << "容量和大小: " << endl;
63     vector<int> v8(v1);
64     cout << "v8容量" << v8.size() << "v8大小: " << v8.size() << endl;
65     cout << "v8容量"<<v8.capacity()<<"v8大小: "<<v8.size() << endl;
66     //删除
67     if (!v8.empty())
68     {
69         v8.pop_back();
70     }
71     prinfVector(v8);
72 
73     //重置容器大小
74     v8.resize(20);
75     prinfVector(v8);
76     v8.resize(30,9);
77     prinfVector(v8);
78     v8.resize(8, 4);
79     prinfVector(v8);
80     //插入数据
81     v8.insert(v8.begin(),2);
82     prinfVector(v8);
83     v8.insert(v8.begin(), 5,7);
84     prinfVector(v8);
85     //删除容器元素
86     v8.erase(v8.begin());
87     prinfVector(v8);
88     v8.erase(v8.begin(),v8.end());
89     v8.insert(v8.begin(), 2);
90     prinfVector(v8);
91 }
92 
93 int main()
94 {
95     test1();
96 
97     system("pause");
98     return 0;
99 }