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发表于 2012-11-13 08:48:12
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1判断语句: J9 I3 f& B5 K8 h) \5 C" ~
if <condition> then
# |3 e3 w: S# S$ ]# C <statement sequence1>;
8 g1 ]; ~. G' T" `# U; H: p& Q5 @: f elseif <condition> then' ` q. G$ o( ~2 d
<statement sequence2>;
) e& Q, Z! |' e" D( k! E else / {2 i0 ?" r: P" [# }
<statement sequence3>;
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如果分支比较多，用：7 X2 L2 ]6 O- M) ]- w0 n2 N% e
inspect <expression># n" F; p4 ?7 g- b9 A) i# o! [* C
when <constant_list> then
7 r6 @- s5 G( f8 C <statement sequence1>;8 ^8 W' f' i! P' S/ z# e
when <constant_list> then6 F4 z; e$ I( L9 \" E* o- u
<statement sequence2>;% O: v7 \8 A1 @. p4 X8 d
...
$ \6 C9 m) B: a' R8 k( e else
7 k0 z) j. L+ B- _- x <statement sequence3>;6 J+ |- P# } [3 Z& E: r! n- X
end;( R3 |( g" d5 P' N" E) `) Y: V+ `
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2循环语句! J+ Z, ^( O. n2 @
(1) from <statement sequence1>! H! P. i% q5 b X; I0 O
until <condition> loop
1 x K' U( ]% C6 L& ~/ M <statement sequence2>;
9 J; x* b9 q; U e end;
3 O6 d m/ B! L& `5 X1 J (2) while <condition> loop
; Q6 P: P$ Y: E& Z6 k <statement sequence1>;' l2 w, h, K6 Y- r1 M6 \9 U9 o
end;% V5 M& }/ B9 I, x
(3) repeat
& s/ {# M& g$ l4 V0 S6 K <statement sequence1>;$ e% {) A* o: k8 a2 k
until <condition>;
8 r: e% q! W1 S3 e (4) for <condition> to <condition> loop
' e' ^: k9 _5 p" ^ <statement sequence1>;% R" V7 L; ?0 j' m( e% ?
next;4 _" J# ?( D. L( I. I
3中断语句3 Q9 R- g# L4 D% J
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
! {. C: U) w3 d& q, u5 u4 p还有很多，如有需要我把资料发到你邮箱里 5 a! k/ t/ n8 S' l' ]
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