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for i:=0 to dbgrideh.SelectedRows.Count - 1 do
begin
qry1.GotoBookmark(pointer(dbgrideh.SelectedRows.Items[i]));
qry1.Edit;
qry1.FieldByName['staid'].AsString:=‘空闲’ ;
qry1.Post;
end;
for i:=0 to dbgrideh.SelectedRows.Count - 1 do
begin
qry1.Edit;
qry1.FieldByName['staid'].AsString:=‘空闲’ ;
qry1.Post;
end;