Delt = Sqr(b ^ 2 - 4 * a * c)
上边加上一行
if b ^ 2 - 4 * a * c>=0 then
就是加个判断条件
一元二次方程VB程序 帮我看下那错了 Dim a As Double,b As Double,c As Double D
1个回答
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