// 实例化一个std::向量
#include <vector>
int main() {
std::vector<int> vecDynamicIntegerArray;
// Instantiate a vector with 10 elements (it can grow larger)
std::vector<int> vecArrayWithTenElements(10);
// Instantiate a vector with 10 elements, each initialized to 90
std::vector<int> vecArrayWithTenInitializedElements(10, 90);
// Instantiate one vector and initialize it to the contents of another
std::vector<int> vecArrayCopy(vecArrayWithTenInitializedElements);
// Instantiate a vector to 5 elements taken from another
std::vector<int> vecSomeElementsCopied(vecArrayWithTenElements.begin(),
vecArrayWithTenElements.begin() + 5);
return 0;
}