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发表于 2012-11-13 08:48:12
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1判断语句# @* W: [9 y$ Z: g/ @' |; y
if <condition> then' a) T* [6 x1 n5 Z* t
<statement sequence1>;
+ B" W- ~; O- h. h7 F elseif <condition> then
; v$ q/ V5 b- x8 a" i1 h <statement sequence2>;
4 a4 G+ X' s* T+ A else 4 A7 _1 x6 E- w2 B
<statement sequence3>;
) n+ t+ I% [. L end;; w, r/ w" Q5 j8 ^: |) h
如果分支比较多，用：
r! o% j6 ?+ t4 ~9 [ inspect <expression>
1 u) H6 H# T9 K when <constant_list> then
* u t) Z J; I. U <statement sequence1>;
3 n% ` g# {3 y2 L% b: M( e2 n when <constant_list> then6 m9 X* P. G) _% c
<statement sequence2>;2 N4 r ~! m$ v. ?+ U
...& b1 t* w. `1 D$ c# P- L4 A
else
7 D8 ] m0 D/ ]( }/ J <statement sequence3>;/ z* n, l4 g C& c* X# m; k' i
end;
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2循环语句
2 g; P5 ^2 j. n% X% R (1) from <statement sequence1>
x8 z% j8 ~0 R" E until <condition> loop
, H" B K( u i5 y2 L6 ?9 ?& J <statement sequence2>;5 J6 @9 B4 m. x$ I! C
end;* O9 x9 N/ ]! o% ^* W# N, x
(2) while <condition> loop
. E& M6 w; n; Z' }7 y/ \5 H% h <statement sequence1>;
2 T6 k, M' ?: L% H: e4 G end;
) _. ~: r+ l6 y4 e (3) repeat
( w6 c% {8 K$ a$ @8 d a2 r <statement sequence1>;
3 y# L& ?/ s+ O) [/ w) O% h until <condition>;
7 d" m+ X# w. E$ ]8 b% L) r (4) for <condition> to <condition> loop
' {# A3 F+ r+ h7 y3 } <statement sequence1>;6 r* v! t; M+ Q5 l; {+ Q
next;, A! v1 Y' X+ K) I6 }) X7 J
3中断语句 z- W7 w' V2 l+ X% i
waituntil <condition> prio <integer expression>;* S$ f4 o$ @4 U& M I! a. Q% \
6 w: m9 e: ~- B& ?1 x- P- C- ^0 u" q( g( D8 x$ G+ s' d1 n& u9 C
以上为常用的函数！
& V" D8 m# v2 I6 s. \& U还有很多，如有需要我把资料发到你邮箱里 # q# h, z0 m4 R/ N; Q, _
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