lal=1,lbl=5,且a>b求a,b的值
问题描述:
lal=1,lbl=5,且a>b求a,b的值
答
lal=1,lbl=5,且a>b
case 1
a = -1,b=-5
a.b =5
case 2
a =1,b = -5
ab = -5