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求一元二次方程的根,但不知为何if好像不能用,求高手指点#include#includemain(){doublea,b,c,x1,x2,delt;scanf("%if%if%if",&a,&b,&c);delt=b*b-4*a*c;if(delt
题目详情
求一元二次方程的根,但不知为何if好像不能用,求高手指点
#include
#include
main()
{
double a,b,c,x1,x2,delt;
scanf("%if%if%if",&a,&b,&c);
delt=b*b-4*a*c;
if(delt
#include
#include
main()
{
double a,b,c,x1,x2,delt;
scanf("%if%if%if",&a,&b,&c);
delt=b*b-4*a*c;
if(delt
▼优质解答
答案和解析
用select case啊
Select Case delta
Case Is > 0
……
Case Is < 0
……
Case 0
……
Select Case delta
Case Is > 0
……
Case Is < 0
……
Case 0
……
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