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发表于 2012-11-13 08:48:12
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1判断语句" W: b) h: N+ n% T/ U! r2 L' j5 C
if <condition> then- Z9 d* G& u7 o: z& O" s* s2 v
<statement sequence1>;( O1 e0 m* H+ s9 m* H! S, U: b0 ~3 m
elseif <condition> then
. S8 }1 ?1 X# U3 P <statement sequence2>;2 v! b4 ^3 k. L2 \" f: T$ l0 R
else
* N- n) q) p. r0 m5 }8 ` <statement sequence3>;- p O6 s* C# J
end;
5 j- E% M# n. h- C1 c+ b如果分支比较多，用：, @* y) J! q9 f" k) f4 [$ A
inspect <expression>( @; G" V( G& |3 O9 q0 B
when <constant_list> then
8 e% P: ?/ w. o2 h <statement sequence1>;
) _0 e" M l% ^# S, u1 Z when <constant_list> then
$ i6 y' } ]: M" c- \ <statement sequence2>;1 N2 Q; U( i a
...
% v7 V7 ^: W; { l) v/ {# K. f `# M else
( P" @/ _; k7 w2 m/ I9 f& T <statement sequence3>;
8 S' w, L& \$ l" o# V, Vend;
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x: a* V x- B! M3 S- D2循环语句) G9 J* R. e( z0 [4 a8 W0 Y$ c6 L
(1) from <statement sequence1>
2 F6 a: @- G. m+ c+ i7 Z until <condition> loop7 A! [: ~4 Y! e0 E
<statement sequence2>;
7 d( a1 J! v" O, s c, b- o end;
" T8 _' j* T, W7 D& | (2) while <condition> loop
6 \3 r* l) t2 J0 P) _ <statement sequence1>;1 y' \1 W. H% B% @* O1 q
end;0 b" F% B, `% k6 P
(3) repeat
4 K4 p8 @; W, C) \; E0 U( X' { <statement sequence1>;
2 A! x& w) `- \7 U' E& p until <condition>;
4 ]' T1 S5 W% \8 Z% m (4) for <condition> to <condition> loop
0 |. o U' a& \6 q* ^9 a <statement sequence1>;4 z6 ~# C' y1 U$ {# |
next;" b; R! t) X7 Y3 f9 D) p: h
3中断语句
: C& G. n/ j0 @8 {4 [ waituntil <condition> prio <integer expression>;8 H G! ?1 E6 F3 Q# e p: L
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以上为常用的函数！8 L W& \7 a7 t! u: m2 s j4 F" w3 v
还有很多，如有需要我把资料发到你邮箱里
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