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发表于 2012-11-13 08:48:12
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1判断语句/ t$ m+ E% G% B
if <condition> then5 k7 w, M' B' i P, i' M* s% J
<statement sequence1>;/ O, m4 E7 j3 v0 x5 a5 }
elseif <condition> then r* Z5 Q1 V3 F5 N) ]( e
<statement sequence2>;
; G/ k, \) q. V I0 {* k3 E L else
S9 e" i, N; S5 V( [1 D1 f$ @8 j <statement sequence3>;
! d! _7 b# x! S* P$ I5 e, V7 H end;
" d/ Z0 J/ j" p5 q' X如果分支比较多，用：2 I ?$ e" Y7 K& P, i3 M
inspect <expression>- d/ R7 T. Q: ~
when <constant_list> then- a7 n, t$ A. Q. ?8 F% M; ?* u
<statement sequence1>;' J# {$ `. ]' ?0 \! B! B
when <constant_list> then
& G5 W* I a4 | e <statement sequence2>;
# m. _' D% v! v/ T( [ |6 | ...
$ ~& Z# G! Q, ?+ H' l else
8 t' \2 c8 h& f/ I3 Q* J! j <statement sequence3>;/ @+ w# F. ~; g2 U' c0 p
end;
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" O. X% L. D3 v. C2 {" E2循环语句
6 h7 s8 l& v/ s1 v (1) from <statement sequence1>
' x! j, L# T- {; q) F until <condition> loop
+ D5 H5 D7 B! {+ u: T# L <statement sequence2>;# W2 b9 n. g- J, k9 `- P. J
end;
" _9 i$ M" d4 F! x2 S, g (2) while <condition> loop; J" Y" J: G: k3 p4 W
<statement sequence1>;
8 R( P, e. ~5 J$ r2 W& _ end;; H( ~6 c1 A6 O( U$ t
(3) repeat
# y+ _+ @# ~ n <statement sequence1>;; x- }3 d. D3 G' }' H0 T9 X
until <condition>;
4 l9 A0 n l) P1 `1 k$ S0 f# l& G/ m (4) for <condition> to <condition> loop d$ k% X1 s ^1 k3 ?' ]+ f
<statement sequence1>;, j; V2 K1 ~( r, c2 c
next;* x1 q8 S$ y" `/ U2 u
3中断语句
, q! |& {; E' b4 Z' n$ C/ H! q8 O waituntil <condition> prio <integer expression>;+ R: {( d* s7 X% I
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以上为常用的函数！
" n; A0 H0 c7 R @0 b7 Z2 G还有很多，如有需要我把资料发到你邮箱里 & c! P/ G+ \( I. b8 E* ?
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