Question

用c语言如何进行编程？

Answer 1

示例程序如下：
#include <stdio.h>
#include <math.h>

double Distance(double x1, double y1, double x2, double y2)
{
return sqrt(pow(x1-x2,2)+pow(y1-y2,2));
}

int main()
{
double x1,y1;
double x2,y2;
double d=0;

scanf("%lf%lf%lf%lf", &x1,&y1,&x2,&y2);
d = Distance(x1,y1,x2,y2);
printf("%.2lf\n", d);
return 0;
}
示例运行结果：
1 1 2 2
1.41