案例1-随机码

<%
function makePassword(byVal maxLen)
Dim strNewPass
Dim whatsNext, upper, lower, intCounter
Randomize
For intCounter = 1 To maxLen
whatsNext = Int((1 - 0 + 1) * Rnd + 0)
If whatsNext = 0 Then
'character
upper = 90
lower = 65
Else
upper = 57
lower = 48
End If
strNewPass = strNewPass & Chr(Int((upper - lower + 1) * Rnd + lower))
Next
makePassword = strNewPass
end function
%>
<%
'6是长度
%>
<%=makePassword(6)%>

 <%
'ASP生成随机字符串(数字+大小写字母)练习
'阿会楠练习，为我所用，非我所想 
Function randKey(obj)
 Dim char_array(80)
 Dim temp
 For i = 0 To 9 
  char_array(i) = Cstr(i)
 Next
 For i = 10 To 35
  char_array(i) = Chr(i + 55)
 Next
 For i = 36 To 61
  char_array(i) = Chr(i + 61)
 Next
 Randomize
 For i = 1 To obj
  'rnd函数返回的随机数在0~1之间，可等于0，但不等于1
  '公式：int((上限-下限+1)*Rnd+下限)可取得从下限到上限之间的数，可等于下限但不可等于上限
  temp = temp&char_array(int(62 - 0 + 1)*Rnd + 0)
 Next
 randKey = temp
End Function
Response.Write(randKey(6))
%>