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发表于 2012-11-13 08:48:12
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1判断语句. _% w/ v. @- G1 j' ]( J
if <condition> then7 W" e, L0 a6 b
<statement sequence1>;
6 v) {; o( r% j elseif <condition> then
( ]+ @) J8 P+ L7 n( r <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：' S1 f" y4 k* D# h5 I; c
inspect <expression>
5 L3 ?3 n. N' h3 ?" Q when <constant_list> then
* y( V% m! {5 z0 x1 |' t0 `& q" k <statement sequence1>;6 b! S3 V: m' i! d& U5 A' I" f
when <constant_list> then# X; @4 J6 ?/ D1 ]/ P* E& N- p
<statement sequence2>;
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else) r) v& B q7 A2 I- B
<statement sequence3>;, @& G8 [' f4 w' U+ s6 ^
end;
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/ W6 f: c1 P0 F( F$ U2循环语句/ H. K9 G# {1 i2 s0 g2 }
(1) from <statement sequence1>
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5 }! r. K% ^# @) ^4 l; t: b' N <statement sequence2>;9 ?2 z# X8 P- ^! P
end;
: k8 Y' v3 d$ {. P (2) while <condition> loop
) K- w9 J" P( R' f <statement sequence1>;0 Q* c% q+ d6 b: m
end;* J, \) m0 _! g/ ?. ?) ~
(3) repeat 5 w$ Z5 ^% y& A1 I
<statement sequence1>;1 b, f" ^ s( V2 p
until <condition>;
5 A, s, g. C$ ^- q& Q' b; j (4) for <condition> to <condition> loop9 ^8 W5 q5 ^( c$ Q) V* m; g* M5 n
<statement sequence1>;1 u" y; p: v! N$ ^% D6 ^: s! [
next;
3 Z) {; `4 e" R9 @; M# J) I3中断语句
4 V) K" W |+ c+ G+ M waituntil <condition> prio <integer expression>;1 n& ? b/ S( w# Y% `
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以上为常用的函数！
8 k% [7 J* J: z0 Z& \1 b还有很多，如有需要我把资料发到你邮箱里 3 ]+ v$ H8 P7 i3 Y' |$ D( X
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