用vb求1到n的阶乘和的程序:
1.
自己编写函数代码:
Private
Function
jieC(Byval
n
As
Integer)
As
Long
Dim
i
As
Integer
Dim
Fac
As
Long
Fac
=
1
For
i
=
1
To
n
Fac
=
Fac
*
i
Next
i
jieC
=
Fac
End
Function
2.
在需要求阶乘的地方,调用该函数:
例如:
Dim
y
As
Long
y
=
jieC(10)
'求阶乘(10)将用10调用上面的自定义函数,返回10的阶乘