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发表于 2012-11-13 08:48:12
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1判断语句
0 j0 C, [( d* g4 n. @ if <condition> then
- J2 w1 @1 @7 [3 R; y+ c <statement sequence1>;4 O# @1 k# D8 M+ S& y: N
elseif <condition> then
+ k8 |3 _+ w, `' x+ z0 p <statement sequence2>;
- Z% ^* X* [4 u2 L' ? else
& x: } t; \4 T1 W; O <statement sequence3>;
) f4 X. g9 q2 c1 Z/ a* | end;( j6 G0 Z; R [: o
如果分支比较多，用：
3 `4 {$ G5 M7 K; D9 z inspect <expression>" [9 G+ }+ m6 l2 U9 r3 Q9 r
when <constant_list> then% l3 `3 E0 R! Q1 }2 h) Z; C
<statement sequence1>;8 d8 X# a8 J7 O) R
when <constant_list> then
5 `9 o$ E) p. w4 u! {( Z <statement sequence2>;/ b3 {7 O0 r/ s2 S
...
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<statement sequence3>;
* |0 D! X0 z+ a5 t, oend;
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( A" t7 c9 d8 x2循环语句 Q) ~1 a$ X( ]3 `2 z3 m- A+ Y/ Z
(1) from <statement sequence1>
% @2 O0 r8 z# O0 d$ e until <condition> loop
2 g$ c4 h1 |5 Q <statement sequence2>;4 \. B) b8 C) y& g- _& U
end;4 F3 h% k# R. D6 i W
(2) while <condition> loop
. ]. v6 `0 q7 {6 h5 \ <statement sequence1>; ~6 A7 u; Y5 O7 X+ d4 v
end;
: Y$ Q7 A' C8 U# @7 u( d* l (3) repeat - T- G: d3 B: S, n5 l5 \; w
<statement sequence1>;* `$ E5 m/ A5 D9 e4 d& Y
until <condition>;
& W) U# l7 m! Q (4) for <condition> to <condition> loop
) r) G6 \5 J$ r$ \* o3 i& n0 } <statement sequence1>;' `" X& Q" J& v, t) o, b, R0 p) l/ n& F
next;
+ @2 w' r- B( j5 t& Q: Z X3中断语句
+ c# _5 L6 |/ O waituntil <condition> prio <integer expression>;
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: H+ s6 U+ t/ a% _
以上为常用的函数！ o9 C8 O# i* {1 U4 F9 Y/ S
还有很多，如有需要我把资料发到你邮箱里 5 q" V* d, o8 h4 C; T, A0 L
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