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发表于 2012-11-13 08:48:12
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1判断语句' V& i0 K. n; |# h
if <condition> then
. L- ^9 A v0 D M( x& J) m8 y5 k <statement sequence1>;- B" z5 J3 _# e. o( Z, N9 j& Z
elseif <condition> then
3 \$ d% J( g( \3 m/ A* I <statement sequence2>;
v: {1 S: e# F; ], K else
, r+ N3 S& R, w) C) X <statement sequence3>;& ?! {. k8 S5 ~* c) R0 P
end;
$ }* c3 w0 w' d i1 a9 I: A如果分支比较多，用：. ^$ X. N$ g, Y
inspect <expression>
4 p/ W+ t6 U# i$ L$ [ when <constant_list> then
" M3 I7 R& A2 T5 F <statement sequence1>;
. g; e. g$ y1 p* S when <constant_list> then
O0 \. D$ D0 f4 ^, Z- i <statement sequence2>;- U" m. i( L- P+ j ]
...
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<statement sequence3>;/ p2 |' b k$ G8 B
end;& J( Z9 x. n! q6 M" V. D \/ V
, S# z: _3 @& E" s9 B2循环语句 L# L/ |/ ~- H7 ^
(1) from <statement sequence1>
3 S% L( O6 ~1 D0 ^3 n. L until <condition> loop
0 q' s+ W% `. t- q3 p <statement sequence2>;
+ m2 t0 f, B$ h4 S% t4 {! r end;
4 y$ T& w! L$ A& f8 S* K- u (2) while <condition> loop
3 d3 N! v$ w' r5 H2 J3 f7 T0 j <statement sequence1>;
- s2 e0 n; S5 W: s( o5 y end;6 x3 r$ K( \0 U4 V b
(3) repeat / ~; _+ {: t" W1 W" J* Y `0 H
<statement sequence1>;2 V& l2 q& h Z
until <condition>;, l \+ {$ h; E) h( }" I. H) g
(4) for <condition> to <condition> loop
% W1 Q+ S c% K; P0 M; S: T <statement sequence1>;
6 W" i2 ~7 H$ o6 H% {5 I next;! \! A9 [8 [" _$ I
3中断语句
5 U/ g0 ^$ X9 Q; w) D; s% g, { waituntil <condition> prio <integer expression>;
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% K9 E( }6 k+ i
以上为常用的函数！, v! G* X/ p. [/ x$ _, ?: C
还有很多，如有需要我把资料发到你邮箱里
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