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发表于 2012-11-13 08:48:12
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1判断语句+ e4 _ m) Y7 e9 X; q) R
if <condition> then
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elseif <condition> then
& B% Z; Y5 a1 |+ _ <statement sequence2>;: ^7 A# P$ H$ m1 z4 G1 l% C
else 9 x* Z7 ^: v$ R9 v
<statement sequence3>;
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如果分支比较多，用：
; ~7 k2 r- g$ v inspect <expression>. @& b6 ]& H% ~) e& X
when <constant_list> then0 t Z4 X/ q3 ~$ d/ U3 G
<statement sequence1>;
6 @% Q9 @5 U" V A when <constant_list> then
2 L8 f- [' m2 |8 B% F, T8 P <statement sequence2>;) U/ I0 `( ^% {. l% a) J
...
- M& W, T% n1 u0 J7 @/ b else
4 }1 ]7 j- J+ x# r: b/ d+ O <statement sequence3>;
2 w! H, X9 @( [end;
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2循环语句! H0 d, Z! k( h0 P8 K
(1) from <statement sequence1>
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9 n. b) v6 Z9 H* V; z$ b <statement sequence2>;. b1 J8 a: J6 n2 @( U' ]
end;
2 M+ \+ D) S4 D' U# U6 ]* G (2) while <condition> loop+ w4 F3 |9 U* k0 s' m3 ~: x0 I
<statement sequence1>;
2 x) Y# N' s$ R& [/ R# o" V end;
- K8 g4 `/ Z+ x- l4 p0 q/ P1 O3 Y& j. f (3) repeat ; \, A! y% z* J: r7 J8 U
<statement sequence1>;
$ d& L) A# x% h# w- P v8 j2 K until <condition>;
: J" d, b& } S( x4 D2 f (4) for <condition> to <condition> loop
# ?" T, g6 r: k9 p) g1 ^6 e <statement sequence1>;6 G, z# y& Y! Z& [
next;
+ j$ [- V/ M$ W4 \; o+ G3中断语句
5 h) U. ^% p y0 U0 Z waituntil <condition> prio <integer expression>;
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以上为常用的函数！
+ ?# Q; B* y1 f# v还有很多，如有需要我把资料发到你邮箱里 8 P7 l( S5 F( W( O
7 q: h/ s, M. O6 ?
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