is+ }- X7 G4 o; k2 O, P! f
do; |5 L2 K) I0 y. B
if backfire1.ready and backfire1.cont.Attribute="warmup" and backfire1.cont.name="mar" and quench3.empty% k! l F) E! [* T
then backfire1.cont.move(quench3);( ]2 r3 w) F/ i; B' c1 x
end;$ y! E) ~4 \. U; a/ {2 g, G+ q! j
end;# U" D4 V- g' L T" V
! g$ i0 o4 G& k8 }% x/ L$ ^# g
运行的时候总是跳出错误提示:Unknown identifier Attribute;+ i8 Z$ \! e& N' q
3 ]5 k) p% c) v4 f. i: w. j9 E) j, M
请问前辈们这是为什么?怎么修正?