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发表于 2012-11-13 08:48:12
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1判断语句% _% T( A/ d2 `8 x, y1 Z0 \
if <condition> then5 y5 Q! J8 x$ V' W: G4 A8 D8 k
<statement sequence1>;2 k, y* ^- M' T4 p0 I, Q+ z& J
elseif <condition> then
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<statement sequence3>;
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如果分支比较多，用：
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when <constant_list> then
! L. @' R( N# [, B& B1 F <statement sequence1>;
9 D* c: K" y% x5 p: k( s4 v9 M when <constant_list> then
+ s1 o( M+ [4 _. g; E <statement sequence2>;8 ?# P% R7 z! \
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else
0 O B2 K" }8 a <statement sequence3>;
! a0 t1 B F6 O# L% Z) uend;
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7 T, N4 ?, I% W! w; D- O2循环语句0 s/ s4 ~& w: D% h
(1) from <statement sequence1>
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<statement sequence2>;
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(2) while <condition> loop
; Q; X$ _8 v# ^ <statement sequence1>;
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(3) repeat # R/ G) P" b+ ?/ _' U! `
<statement sequence1>;9 `, E( x# b/ G* E( s
until <condition>;
/ P5 ] L x( v: S3 o (4) for <condition> to <condition> loop, i, q; v6 J3 p+ g9 I- H& W/ U
<statement sequence1>;+ }4 j' z4 P' R- q: f" F9 x
next;
+ _8 Y3 p( l: M3中断语句
* i- q$ h4 k i. [0 r waituntil <condition> prio <integer expression>;
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7 H3 b$ G3 z1 g$ i p3 r以上为常用的函数！/ o5 b" T+ m4 N; X j
还有很多，如有需要我把资料发到你邮箱里
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