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发表于 2012-11-13 08:48:12
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1判断语句' ]# b. x6 |+ p$ f
if <condition> then1 o# j) c4 t- l6 [2 g2 R% ]& k
<statement sequence1>;. [: z4 g4 Z) n
elseif <condition> then
' C v- h* u9 a; R' ~( o }: F; } <statement sequence2>;/ \7 k( D* o# E
else
3 N6 _# ~9 c+ f3 A* ~- R <statement sequence3>;
, _0 \6 f) h& J: I. i O: E/ j/ ^ end;
6 i6 ~2 H' s' Z# q如果分支比较多，用：
1 c2 ~ a: M% y! W( y8 P inspect <expression>
5 }, D* ]' K3 u) `" ?$ \ when <constant_list> then W! V1 Z" a1 m
<statement sequence1>;0 _' u' Y% I+ b* w+ k/ L1 Y
when <constant_list> then
5 o) O" w0 s& e0 A3 m: S <statement sequence2>;
1 k7 ~1 D$ L; y7 N3 H ...
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<statement sequence3>;
7 ^% r4 B/ `0 @end;
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2循环语句) `1 d8 K! Y2 h& f- D- \
(1) from <statement sequence1>$ A3 }# b# X/ s1 d& K' E
until <condition> loop
' v( i3 u/ q9 q) @# t7 |) ^ <statement sequence2>;
8 b2 }( f; u! _6 F end;4 ^# y F% D, c% ?7 g( C
(2) while <condition> loop
: [4 c1 C7 I- T6 S+ @ <statement sequence1>;
5 _6 m5 Q. f* b1 y# \6 L end;
2 `6 h+ g, C4 {* V4 X (3) repeat ) r( o {5 }& g s& N( i b
<statement sequence1>;' u/ J9 [. K; K% [& J
until <condition>;! }9 I# n& a k8 F _
(4) for <condition> to <condition> loop" ^; m! E$ S/ o D/ U2 z/ G$ P9 l
<statement sequence1>;
" H5 E i5 p2 K$ j8 J4 o next;
3 n1 M5 R: X5 }3中断语句8 \# {: |. ^/ \" ?. F
waituntil <condition> prio <integer expression>;% @' V7 m2 ?8 Z. x
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以上为常用的函数！+ [. z! o8 z6 b8 n& F* ?
还有很多，如有需要我把资料发到你邮箱里
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