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with Query do begin
tempParam=parameters.addparameter;
tempParam.name='@begindate';
tempParam.DataType:=ftDateTime;
tempParam.Direction:=pdInput;
tempParam.Value:=st;
strcondition=strcondition+' and begindate=@begindate';
end
strsql=strSelect+strConditon+strGroup+strOder;
query.sql=strsql;
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