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发表于 2012-11-13 08:48:12
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1判断语句
: P9 H, N2 ?5 C. Q3 y+ l' z8 N if <condition> then
2 \5 @% R3 l$ `. z* G: R* `1 l <statement sequence1>;
% Z8 e, S& R& D elseif <condition> then
/ i; @$ m. Y1 G- x3 B# ^/ M7 \ <statement sequence2>;9 f) Z1 m. b, x3 q; |1 a- N9 h3 [
else 4 T2 T& V* J8 V& v% O( O2 b
<statement sequence3>;) o1 v5 \/ Y6 B6 J+ S' S) `3 p2 P
end;
2 k2 U1 U* r( o# d0 I如果分支比较多，用：1 R( m- F4 @6 `5 x2 H/ e
inspect <expression>3 p8 o/ c, U/ U, }4 X' Y
when <constant_list> then
' f* o4 f% I, Z& b- h+ O <statement sequence1>;, t4 [4 f1 h: K. {; R
when <constant_list> then
8 }8 k' d7 b9 Q2 ] <statement sequence2>;* s2 s7 ^3 b3 L* N- F/ R0 M3 k% F! c
...
0 N6 ?$ T( p. G else: r, ?* E/ \+ p f) Z
<statement sequence3>;
, H$ ~: S; T6 \% [( ]end;
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2循环语句4 R: `7 l9 b ^& ~1 c" ~
(1) from <statement sequence1>% U' k6 S% B, g
until <condition> loop8 V( @2 X% g, {& _7 G' s+ E. {5 T5 \
<statement sequence2>;
" o( w* w ^: C& i8 @ end;/ }) H- \ s' N8 B6 R* T
(2) while <condition> loop
8 n3 W$ e' X! v2 H <statement sequence1>;( w2 X& t m* D* A3 W
end;
6 E. g' j# K9 p* |/ [5 Z& _ (3) repeat ) Y1 I! S. a6 [& F* e' f7 N- A9 x y
<statement sequence1>;
) x2 \1 } D- B3 s/ s1 X0 c) U until <condition>;
/ x( }% l) P& p0 x6 m. E (4) for <condition> to <condition> loop, m+ `) e; R# b, ?- M
<statement sequence1>;# c/ U5 ^7 O: G- Z, t( ?+ d
next;
0 [3 A5 v* T. K1 \% s3中断语句; Y6 i( W/ S% u6 |4 n& x
waituntil <condition> prio <integer expression>;8 R1 a. j: Q, T3 _* K, M1 ~7 l' {+ Z9 w
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以上为常用的函数！
/ l4 h4 ]; N* y; S, Y( V还有很多，如有需要我把资料发到你邮箱里 3 C- v8 L# T B D( S2 @
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