Private Sub Command1_Click()
Dim a As Single
Dim b As Single
Dim c As Single
a = 45.3
b = 45
c = a - b
Print c
End Sub
为什么输出结果是0.2999992,而不是0.3?

如果换成1.3-1结果就是正确的，换成10.3-10结果就成了0.3000002了.搞不懂啊!