vb简单编程：求自然对数e的近似值,当任意项的值小于10^（-4）是结束运算.用公式e=1+1/1!+1/2!+1/n
Private Sub Command1_Click()
Dim a#,s#,e%
a = 1
s = 1
Do
s = s * a
t = 1 / s
e = e + t
a = a + 1
Loop While s > 10000
Print "e="; e
End Sub
错在哪?求分析错误程序