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发表于 2012-11-13 08:48:12
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1判断语句$ r! c) P7 |7 X1 |& S8 k ^
if <condition> then
3 K) }% h6 e3 {3 s" `& A4 I% w <statement sequence1>;) W0 G/ v0 k5 d
elseif <condition> then
6 }6 L3 c& \3 Q' b) R <statement sequence2>;
8 ^- e, f5 V' Q! e+ n/ G else
" }4 O- [, h0 @' |: k <statement sequence3>;) k8 _" I4 U0 ]
end;3 c4 b) t- E8 ^5 |3 A
如果分支比较多，用：* q7 p$ _" ~4 D' ~) ~+ T- P
inspect <expression>
y6 R6 k& ]1 G1 @* Y7 m6 K when <constant_list> then* t0 g- Y( @9 v$ C
<statement sequence1>;
0 }8 A$ m+ g) q; [% q/ K1 \ when <constant_list> then4 r4 z/ o6 O+ L& f! Q% G4 d
<statement sequence2>;. W1 v" p& O( x
...7 Z' }; A& X8 j# x
else
( X5 h$ {; H: c% W9 j+ u <statement sequence3>;. }) f- C9 m) \' J8 O0 k
end;
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9 E" o9 J& C& L7 m- K! X3 ?2循环语句: E+ G7 N8 Q6 e4 v I3 [
(1) from <statement sequence1>
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<statement sequence2>;1 j% P4 T! s4 \
end;0 [% P) M6 x, v5 w) P5 J
(2) while <condition> loop6 r! O5 `0 h$ v/ Q3 ~
<statement sequence1>;2 c1 w1 C. {9 k) _; }: Z
end;
+ O+ ?3 a% D/ @4 I (3) repeat
% j5 g3 ~8 P* w2 M6 G# _ <statement sequence1>;
" j2 w) b6 D2 y until <condition>;
7 {: w# B2 t: a2 D (4) for <condition> to <condition> loop, B8 d" b4 p: ^% [) b
<statement sequence1>;
7 N$ b5 N5 b; g- v% V next;
5 F, w8 {9 w! L9 t$ {2 f3中断语句
\- n! u4 Q9 s5 d$ E+ Q waituntil <condition> prio <integer expression>;
8 N/ W6 [) t+ x: p1 f- ?( n, E; n$ O5 r% y
4 l9 I! N' M5 o" Z( ~' F+ Q
以上为常用的函数！
+ h4 G% c+ a* j9 m1 V还有很多，如有需要我把资料发到你邮箱里
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