玩玩~$Str = _
'<SPAN id=ext-gen1127 class=member>系统消息说:</SPAN>' & @CRLF & _
'<SPAN id=ext-gen1128 class=time>2014-03-30 22:02:08</SPAN><DIV id=ext-gen1121 class=message-body>主动推送</DIV>' & @CRLF & _
'<SPAN class=member>系统消息说:</SPAN><SPAN class=time>2014-03-30 22:02:34</SPAN><DIV id=ext-gen1120 class=message-body>提供信息' & @CRLF & _
'SPAN class=member>系统消息说:</SPAN><SPAN class=time>2014-03-30 22:19:00</SPAN>' & @CRLF & _
'<DIV id=ext-gen1138 class=message-body>会话结束</DIV>'
Local $Test = StringRegExpReplace($Str, '(?s).+(\d{4}-\d{2}-\d{2}\h\d{2}:\d{2}:\d{2}).*', '\1')
MsgBox(0, 0, $Test)
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