[实验任务一]:向量的原型
用C++完成数学中向量的封装,其中,用指针和动态申请支持向量长度的改变,使用浅克隆和深克隆复制向量类,比较这两种克隆方式的异同。
实验要求:
1.画出对应的类图;
2.提交源代码(用C++完成);
3.注意编程规范。
类图
源码: #include<cmath> #include<iostream> using namespace std; class Vector{ private: double *array =new double[4]; double length; public: Vector(double arr[4]) { this->array[0] = arr[0]; this->array[1] = arr[1]; this->array[2] = arr[2]; this->array[3] = arr[3]; this->length = sqrt(((arr[0] - arr[1])*(arr[0] - arr[1])) + ((arr[2] - arr[3])*(arr[2] - arr[3]))); } ~Vector() { delete[]array; this->length = 0; } Vector* clone() { return new Vector(*this); } Vector(const Vector& vector) { //浅克隆 this->array = vector.array; this->length = vector.length; } void show() { cout << "向量长度:" << this->length << endl; } }; int main() { double s[4] = { 1, 2, 3, 4 }; Vector* v1 = new Vector(s); Vector* v2 = v1->clone(); v1->show(); v2->show(); return 0; }
标签:arr,克隆,double,每日,length,Vector,原型,array,随笔 From: https://www.cnblogs.com/jiacheng-712/p/17815809.html