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 }