Question

用C语言编写一个程序，求两点之间的距离

Answer 1

#include<stdio.h>
#include<math.h>
int main()
{
double x1,y1,x2,y2,distance;
printf("请输入第一个点的坐标：\nx1=");
scanf("%lf",&x1);
printf("y1=");
scanf("%lf",&y1);
printf("请输入第二个点的坐标：\nx2=");
scanf("%lf",&x2);
printf("y2=");
scanf("%lf",&y2);
distance=sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
printf("这两点间的距离为：%lf\n",distance);
return 0;
}