摘要： 数学题，求积分……#include "stdio.h"#include "math.h"int main(){int cn;scanf("%d",&cn);while(cn--){double x0,y0;double x1,y1,x2,y2;double a,b,c;scanf("%lf%lf",&x0,&y0);scanf("%lf%lf%lf%lf",&x1,&y1,&x2,&y2);a=(y1-y0)/((x1-x0)*(x1-x0 阅读全文