【18年扬大真题】定义一个Point类，要求如下所述。
（1）用构造函数初始化Point类的对象
（2）定义函数Distance，计算平面上两点之间的距离

#include<stdio.h>
#include<math.h>
typedef struct {double x;double y;
}Point;double Distance(double x1,double y1, double x2, double y2) {double x_2 = pow(x1 - x2, 2);//ps:pow(x,n);计算x的n次方，需要math.h头文件double y_2 = pow(y1 - y2, 2);return pow(x_2+y_2,0.5);
}int main() {printf("下面进行你想计算的两点距离:\n");Point p1;Point p2;printf("请输入第一个点的横坐标和纵坐标:");scanf("%lf", &p1.x);scanf("%lf", &p1.y);printf("请输入第二个点的横坐标和纵坐标:");scanf("%lf", &p2.x);scanf("%lf", &p2.y);printf("两点的距离为:%f", Distance(p1.x,p1.y,p2.x,p2.y));return 0;
}

测试用例：