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发表于 2012-11-13 08:48:12
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1判断语句6 w8 }8 I5 K% [1 ^
if <condition> then
7 v" p8 y0 g/ m9 f <statement sequence1>;/ M: R i( E7 Q2 r
elseif <condition> then2 P7 F1 O' x9 ]* n
<statement sequence2>;
% ]/ |/ W; y" D6 N) F6 J else
; b# j) Q: w+ E3 d/ y <statement sequence3>;
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如果分支比较多，用：- A# I9 w' `9 g3 q# g; _
inspect <expression>
+ S5 V0 |" m' v when <constant_list> then
- u. H2 k. T7 m7 x2 U" e <statement sequence1>;
' @, v' }3 j. j. `8 W when <constant_list> then$ K/ n3 R$ O9 K' F; p: y( q& B. A
<statement sequence2>;
* U: y2 r) i7 l" ?4 w! x* Q" Z ...
& s3 f( S' E# {: [ else
$ R n; {% Z9 q. X, Z <statement sequence3>;
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% Q+ e( N, V( X! E" Q3 d! ^2循环语句
# M" [5 V& N# b6 a9 l6 ?( q (1) from <statement sequence1>2 w B( l y/ R2 t2 X
until <condition> loop
2 |( y* S, Y& S5 w: I; p <statement sequence2>;/ k" E$ j( T3 D9 R
end;
8 E( Z4 g1 H4 ]$ K (2) while <condition> loop
: ~- K9 O" l3 {# D <statement sequence1>;! c; |% y: c$ d0 X; C
end;! |: b3 V2 N7 I* k$ N! Q1 k! S
(3) repeat
/ @# Q1 D; G3 e <statement sequence1>;7 f& W7 @9 w+ w/ U
until <condition>;6 l1 q1 g \. M7 y \8 C
(4) for <condition> to <condition> loop9 h7 S! c% {3 Q% N
<statement sequence1>;
/ e @7 m7 W/ q) _ next;
4 e5 C7 |0 h9 o, R% s/ E) W8 j3中断语句
" t: J- S; A S3 `! ~7 P waituntil <condition> prio <integer expression>;
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以上为常用的函数！
, ^3 |! W( g4 k/ F, j' A还有很多，如有需要我把资料发到你邮箱里
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