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发表于 2012-11-13 08:48:12
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1判断语句 @- ?- R; N7 c$ G1 P' J7 m+ R! {' f
if <condition> then7 y: A$ d; P- ~; z9 |0 D6 _* M
<statement sequence1>;: e! X8 {( O% S L8 w- u
elseif <condition> then" g( C$ x O: ^' Z5 ~1 u
<statement sequence2>;
3 b: r8 o/ K. U& g9 V) A8 u else
7 G$ a7 s9 M" z- @% f# a <statement sequence3>;- d) F# T* J! `
end;
+ |) Q; ]- r( T如果分支比较多，用：% l; A8 h0 {, A, }* e* ^4 d9 L
inspect <expression>
: Q6 O, L- V! w; [& [5 { when <constant_list> then% O8 U/ u, H/ o% i: _& W# H' W
<statement sequence1>;' W5 F/ ]& v7 R: v( b; b2 a0 Y: V
when <constant_list> then% K1 A1 ]% ~$ q0 x6 _
<statement sequence2>;
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else
* z' p, W# n2 O c" F$ l <statement sequence3>;
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0 ?3 S, N3 Q6 V b2循环语句
5 e5 e' B* S! F' i- f) |* x (1) from <statement sequence1>7 t# I- d9 K* t8 p \
until <condition> loop9 y/ ?3 ?( A( W* T
<statement sequence2>;+ v; C& R; {% b- q+ W0 @
end;: X7 Y6 V) g3 d0 P4 o* W/ f0 ^
(2) while <condition> loop' H$ b4 z* t. A9 L5 V, S' \8 ?
<statement sequence1>;* d5 }7 u$ H* s( j& x
end;
4 r' \" f/ C- A2 P, ?) f' ^( } (3) repeat : K" e9 N8 g+ J9 }
<statement sequence1>;1 a! U1 I; p$ s6 s& e
until <condition>;
2 H, L8 c7 }# i2 r3 l% |% R: K" w (4) for <condition> to <condition> loop9 ?3 `/ Q1 g+ M; E n2 A: O
<statement sequence1>;( B/ ?3 l5 y3 b$ Q- |; _
next;
, M5 Z8 L* F V6 B# d1 D/ V' c3中断语句8 Y# V' K! r. `
waituntil <condition> prio <integer expression>;, l& M c9 s H& r4 M+ Y
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以上为常用的函数！3 v* t' N, O( k
还有很多，如有需要我把资料发到你邮箱里 $ v" E/ S, F; Q" J
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