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Option Explicit
Dim potflag As Integer      '±êʶÊÇ·ñÓÃСÊýµã
Dim numcol As Integer       ' µã»÷ÔËËã·ûµÄ¸öÊý
Dim LastInput               ' ָʾÉÏÒ»´Î²Ù×÷µÄÄÚÈÝ
Dim colflag                 'numcolΪ1ʱ£¬±£´æÔËËã·û
Dim temp1, temp2            '·Ö±ð±£´æÔËËã·ûÁ½¶ËµÄÔËËãÊý
 
Private Sub CmdCel_Click()     'ÖØÐ¿ªÊ¼¼ÆËã°´Å¥£¬¸ö¼ÆÁ¿ÊýºÍ±êʶ³õʼ»¯
    Res = Format(0, "0.")
    temp1 = 0
    temp2 = 0
    numcol = 0
    potflag = False
    LastInput = "cel"   '±êʶ´Ë²Ù×÷Ϊ"cel"
End Sub
Private Sub CmdPot_Click()  'ʹÓÃСÊýµã
    If LastInput <> "num" Then
        Res = Format(0, "0.")
    ElseIf String(1, Res) = "-" Then
        Res = Format(0, "-0.")
End If 
potflag = True
    LastInput = "num"   '±êʶ´Ë²Ù×÷Ϊ"num"
End Sub
 
Private Sub Cmdsign_Click()     'ʹÓÃÕý¸ººÅ
    If String(1, Res) <> "-" Then   'Èç¹ûµ±Ç°ÊÇÕýÊýÌí¼Ó¸ººÅ
        Res = "-" & Res
    Else: Res = Right(Res, Len(Res) - 1)  'Èç¹ûµ±Ç°ÊÇÖ¤ºÅ£¬È¡Ïû¸ººÅ
End If 
LastInput = "num"   '±êʶ´Ë²Ù×÷Ϊ"num"
End Sub
Private Sub ComCol_Click(Index As Integer)  'µã»÷²Ù×÷·û£¬¿É½øÐÐÁ¬ÐøÔËËã
    numcol = numcol + 1     'ͨ¹ýnumcol±êʶµã»÷ÔËËã·ûµÄ´ÎÊý
    If numcol = 1 Then  'µ±Ç°ÊýΪ²Ù×÷·û×ó²àÔËËãÊýʱ£¬¼Ç¼µ±Ç°²Ù×÷Êý
        temp1 = Res
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Private Sub Command1_Click()
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Private Declare Function URLDownloadToFile Lib "urlmon" Alias "URLDownloadToFileA" (ByVal pCaller As Long, ByVal szURL As String, ByVal szFileName As String, ByVal dwReserved As Long, ByVal lpfnCB As Long) As Long
Private Sub Command1_Click()
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 Dim wdapp As Word.Application
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