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发表于 2012-11-13 08:48:12
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1判断语句; y0 A; \( C" f+ t$ ~6 I: s
if <condition> then$ V; f: a H5 h2 V
<statement sequence1>;) Y) E$ x5 j3 J7 z1 K% O
elseif <condition> then8 C- F' f( G; [% o
<statement sequence2>;: h7 V, ]8 o. a& c
else ( [! o6 E/ y- S9 N
<statement sequence3>;' i7 m, q" ]4 _ ]+ e
end;; t' }) \. @2 C2 z
如果分支比较多，用：
4 O" x- y! o$ ^ M inspect <expression>
" N8 c8 ~* T* f1 d3 D when <constant_list> then
5 y8 O0 }' n. H7 B* A <statement sequence1>;. R; Y% [3 t3 S y& C
when <constant_list> then
# Z% d* v& Q4 Z Z5 }& P <statement sequence2>;
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else0 A& w R0 }0 l1 i! ] I4 _4 g$ c
<statement sequence3>;
8 D6 a# v! W: c. A7 M! Q$ ]end;
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' G! U9 t8 g; C, C- R2循环语句
* g1 u, ?' V( r/ Q5 X (1) from <statement sequence1>
# y. R" u& w: _: f! ]6 P until <condition> loop
8 y+ o# F' @9 E <statement sequence2>;6 ?, P/ t( A" n: q$ I+ g3 G
end;
' l( x$ J7 R2 S- B4 K, U5 d (2) while <condition> loop! K2 x& y- ^+ Z% @ J$ n2 M1 g
<statement sequence1>;6 o2 [( N1 B. |% S4 u" d4 @' [
end;
* D4 W) D( N, f& \; E. y) J1 D (3) repeat , y: }9 i1 C- ~$ G& m& X7 z% ~
<statement sequence1>;0 H, j) h# V# ]7 W( q& k' s
until <condition>;8 z$ R; t# R* A# Y! T2 o# O3 E
(4) for <condition> to <condition> loop
% D3 h2 \) g6 a) Q6 _ <statement sequence1>;7 D, j P( v4 U# Y
next;) }. w* b3 Q: }
3中断语句
1 E9 @* t0 s+ }* r- v waituntil <condition> prio <integer expression>;& h# K, ?: E0 w
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以上为常用的函数！2 D, a& d: D/ n/ a( f! v* q
还有很多，如有需要我把资料发到你邮箱里 ! v9 W% ?3 C& P+ c5 o+ F9 E
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