对于ax^2+bx+c=0int panduan(int a,int b,int c){int m;m=b*b-4*a*c;return(m);}void main(){int a,b,c,flag,x1,x2,ture,virture;printf("请依次输入二次方程的系数：＼n”);scanf("%d %d %d",&a,&b,&c);flag=pandua...