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发表于 2012-11-13 08:48:12
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1判断语句% a+ `# L5 u- _% E2 `( t
if <condition> then
. z B" W/ u$ c0 z/ e" j" C <statement sequence1>;
2 d5 f: b( @' c% D; { elseif <condition> then# E$ E7 \+ C) U2 ]5 R
<statement sequence2>;
6 X: X- j9 ^* x; P- t: A$ k: g else
8 X5 X! L+ m3 I; T2 I <statement sequence3>;- `# ~% V" B2 J% r% R n5 G
end;
3 [. e! }6 c9 j/ y+ j如果分支比较多，用：
7 z/ C, c6 s: R: t( S) Q inspect <expression>
: a7 D0 `- \3 S2 h7 r when <constant_list> then
+ m, I% \4 X9 Q0 ?4 b: x <statement sequence1>;9 J3 E7 V3 z2 e: a5 j7 w H
when <constant_list> then R4 R- |4 o0 Y) ]5 |
<statement sequence2>;4 p# J0 w: Q [/ n) M9 q. o0 Z) X
...
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<statement sequence3>;: M" J; T6 s* R( _! ]& ?. S
end;
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# F8 V: q, k% u# Z2循环语句
, i; r0 s: C) i3 J! ]8 A! u7 O, e (1) from <statement sequence1>
5 A, e; I$ x2 H% a6 Z until <condition> loop
1 a( l$ j9 t; i, R: y( n# [5 A <statement sequence2>;0 l" _6 T" ~5 z( d, T
end;
* ]- q) k) ~4 o- M" a! {: G (2) while <condition> loop2 S+ z9 H. p' @! s. I: H
<statement sequence1>;
+ {9 J5 e8 J5 [" i end;# k* b. n- Q" ?; `
(3) repeat
8 z( C; Z! [# f V: ~5 |9 @- m <statement sequence1>;
. i6 ?2 B$ a% V2 j until <condition>;
. h' l: n+ P, N z' x (4) for <condition> to <condition> loop
1 V' u9 E' O o$ J) b ^ <statement sequence1>;
( \( p, P+ r3 U" \6 Z' { next;
; r# I j, A9 ~4 `: M8 b3中断语句5 z L2 T0 M$ N
waituntil <condition> prio <integer expression>;
+ ?+ N3 o0 Y5 m7 _, q6 }2 `+ k2 w! z3 e
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以上为常用的函数！
3 R# U- [3 Y" J+ L5 Z# \6 d# l( g还有很多，如有需要我把资料发到你邮箱里 7 j/ c R+ l2 C! a
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