使用asp处理数组的重复字符

使用asp对数组里的内容进行去除重复的动作，分别取出比对：

Function MoveR(Rstrall) 
Dim SpStr_i,SpStrall 
SpStrall = Split(Rstrall,",") 
    For SpStr_i = 0 To Ubound(SpStrall) 
        If SpStr_i = 0 then 
        MoveR = MoveR & SpStrall(SpStr_i) & "," 
        Else 
            If instr(MoveR,SpStrall(SpStr_i))=0 and SpStr_i=Ubound(SpStrall) Then 
            MoveR = MoveR & SpStrall(SpStr_i) 
            Elseif instr(MoveR,SpStrall(SpStr_i))=0 Then 
            MoveR = MoveR & SpStrall(SpStr_i) & "," 
            End If 
        End If 
    Next 
End Function

以上的操作主要使后台存储数据的唯一性。