error C2181: illegal else without matching if
error C2181: illegal else without matching if
日期:2017-09-06 11:22:00 人气:2
#include
#include
void main()
{
double a=1,b=-5,c=6,d,x1,x2;
if(b*b-4*a*c>=0)
{ //加括号
d= sqrt(b*b-4*a*c);
x1= (-b+d)/(2*a);
x2= (-b-d)/(2*a);
printf("x1=%.3f,x2=%.3f\n",x1,x2);
} //