Dim a As Single
Dim b As Single
Dim c As Single
a = Val(Text1.Text)
b = Val(Text2.Text)
c = Val(Text3.Text)
d = b ^ 2 - 4 * a * c
If d >= 0 Then
e = (-b + Sqr(d)) / (2 * a)
f = (-b + Sqr(d)) / (2 * a)
Text4.Text = e
Text5.Text = f
Else
mgsbox "无解"
End If
哪错了啊????
这是一个解二元一次方程的代码.