request 加号的问题

[haiyun365]

<%=request("a")%>
当 a=3+1.2 的时候 + 传递不过来
问问大家该怎么处理
100分

[hookee]

a=3+1.2 -> 转化为 a=3%2B1.2
即+写成%2B

[Dogfish]

Function URLDecode(sConvert)
    Dim aSplit
    Dim sOutput
    Dim I
    If IsNull(sConvert) Then
       URLDecode = ""
       Exit Function
    End If
	
    ' convert all pluses to spaces
    sOutput = REPLACE(sConvert, "+", " ")
	
    ' next convert %hexdigits to the character
    aSplit = Split(sOutput, "%")
	
    If IsArray(aSplit) Then
      sOutput = aSplit(0)
      For I = 0 to UBound(aSplit) - 1
        sOutput = sOutput & _
          Chr("&H" & Left(aSplit(i + 1), 2)) &_
          Right(aSplit(i + 1), Len(aSplit(i + 1)) - 2)
      Next
    End If
	
    URLDecode = sOutput
End Function

[上官码农]

dim a=3%2B1.2
<%=request("a")%>

[jerry_zuo]

  a=3+1.2 -> 转化为 a=3%2B1.2
即 
dim  a=3%2B1.2
<%=request("a")%>