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发表于 2012-11-13 08:48:12
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1判断语句# H% u {% O+ g; |# Q: e- C5 B& z" T
if <condition> then
: @2 P" e# q. r- P) D J$ v <statement sequence1>;+ D# N9 H4 s5 Z! M" J
elseif <condition> then
" C: ?! R( n; b* x9 ? <statement sequence2>;: Z' z- q$ i1 I. Y8 [ e* }
else
- i5 h1 A7 C" `1 Z5 I <statement sequence3>;+ @# p6 g: c" E0 V" k3 s: _
end;/ Y0 ?- \7 \; N4 T w
如果分支比较多，用： @. L6 Z+ f! @% L. g/ [
inspect <expression>! A b0 ?& D. r$ b% A
when <constant_list> then( x3 A) ?& W5 Z7 T3 ]7 [
<statement sequence1>;! A8 Z# b5 G c1 Q3 i1 j* L
when <constant_list> then
' r1 o& t8 }8 U4 q4 W: y% [9 W. u <statement sequence2>;$ y: u4 b4 W+ p* ?0 h
...6 H$ X1 Q" s1 h$ ?2 ?8 P
else
7 X( [0 Q9 Y* X0 m& ^ <statement sequence3>;; Y& |5 @. L; `( \9 D, y/ `; K
end;
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6 ~4 G2 E2 u3 X2循环语句
8 t; W9 T: ?# h6 X3 \: e4 F" L (1) from <statement sequence1># j% r! i0 V" G) W6 p+ y/ Y) R
until <condition> loop B+ s& N5 Y. ^ U/ a2 `! q! G' y1 L
<statement sequence2>;
( |1 C- v3 F6 W' s, ~; b+ k end;- b5 a! e$ d$ r) o3 [ e6 s
(2) while <condition> loop
; S6 Q5 k; A& t5 C) k <statement sequence1>;
5 [0 |* Z) E4 x: [* U" M6 | end;+ l! q. Q' E$ y0 _8 M. s
(3) repeat
7 n# l/ m; |0 p/ a <statement sequence1>;
" g3 `; b0 g$ h until <condition>;) K0 U3 O/ u2 B) ^) R1 P: D
(4) for <condition> to <condition> loop
O X2 G8 g- j <statement sequence1>;
# x/ J \# M& L! g next;
; [! p2 N& g& G9 y# q8 S3中断语句/ J& t+ b: z) z' h" Y( e. O8 n
waituntil <condition> prio <integer expression>;' O& ]* ~8 o" h5 a. I
* n' K' [ T% k
; Q, w7 u5 L% e0 ]( ^9 |. @以上为常用的函数！
& t* X9 y# p5 Z$ p" x还有很多，如有需要我把资料发到你邮箱里
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