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