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发表于 2012-11-13 08:48:12
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1判断语句/ d" C' a p' [( ?0 c
if <condition> then
* k: I1 I8 y- b) o0 }! Z <statement sequence1>;3 z. m$ j$ ?3 `8 r- q+ p: K0 x
elseif <condition> then
# }6 u9 i( V4 U" w3 V <statement sequence2>;
1 R4 f9 C5 f/ h6 r3 u7 F4 i' v else
0 ?0 Y! O, D$ a <statement sequence3>;
; i7 k! \9 o* j" f! H2 V end;
' |. d' M1 M e% Z+ ^如果分支比较多，用：. `. y9 I! K" L# p& X! o# Y
inspect <expression>- l1 h5 Y& a) p- H5 j
when <constant_list> then
# V& ]: z& v# a/ l( k7 [ <statement sequence1>;2 z$ a; }/ N. N7 c/ L9 u
when <constant_list> then" R; ?# Q( c9 |/ x3 H
<statement sequence2>;
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else7 ~8 x' S: a$ d9 a. N) T* Q
<statement sequence3>;9 T( E1 z" s0 e8 o
end;
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2循环语句2 ?2 ]' o. g3 d- h( p# M+ L
(1) from <statement sequence1>7 ^5 e6 O, r5 _$ A. ?# t
until <condition> loop+ N' Y }/ z9 T3 J y0 Y
<statement sequence2>;
, F6 s, A2 V/ h3 a3 X end;/ `, W! K+ m; } i" [& Z; p4 t
(2) while <condition> loop7 s6 p" r- v, K- e/ j
<statement sequence1>;; M0 L. b. m9 p( @
end;7 p. N5 B! ?" a& y; u+ j% f
(3) repeat
0 c' c6 x2 B5 B$ e1 d <statement sequence1>;
' u0 Q. \5 c, }" M' | w until <condition>;- y$ O4 l# o6 i1 A4 _! ~+ p- x
(4) for <condition> to <condition> loop% T- u! h+ k3 s, ^) g9 D* L
<statement sequence1>;
$ a: {% A) d% [2 k: ~ next;9 J3 B4 v- _0 n n9 E3 y9 t# Q8 c
3中断语句
- q K# x+ J( G: A# U1 f: P+ a waituntil <condition> prio <integer expression>;$ J+ R4 j/ X/ I# Y6 n9 \" j
! G, }* t" r3 H
% E. I& _# {! f以上为常用的函数！7 h" n0 [ F; @3 \
还有很多，如有需要我把资料发到你邮箱里 + l/ \1 v2 N. N. u6 Y. @
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