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发表于 2012-11-13 08:48:12
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1判断语句
! K# k7 W1 q% f6 \- u if <condition> then
5 U6 Z. g4 U7 }* V R7 v <statement sequence1>;
; ?- H% A4 o: I: a% E: G' A elseif <condition> then& Q1 k1 [: x2 N' Y5 [; a& e
<statement sequence2>;" e( X8 k# Y8 ^7 Y9 O5 J% h! K
else ! C* J# E! O, X1 i6 }; v
<statement sequence3>;6 @9 Y/ T1 x9 L/ P+ c" D
end;
) N$ a8 H; ]* \; I' L如果分支比较多，用：, t, Y2 Z6 B! g: c" y9 Y* k
inspect <expression>$ }! s' T# I. d% c( r: j, H
when <constant_list> then- D G: X/ v# F7 t1 s/ A0 [ E
<statement sequence1>;
& p2 r$ Q$ }) ]( q when <constant_list> then
3 Y' L) M. D4 A5 i* L <statement sequence2>;
. G" l9 @1 s; K7 O( e" Y% A ...
- B) G) k) l3 [8 j else
6 ]0 S6 o" v" N0 p4 {' f <statement sequence3>;9 c+ A& g& d/ p9 h5 C8 v* b
end;
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1 s( @! x/ ^+ H$ l" |2循环语句( ]7 J; H4 g! Y4 M& p
(1) from <statement sequence1>& q% F/ f+ K( X$ J1 y! A f
until <condition> loop% f/ H, M- v. a
<statement sequence2>;3 K8 Y/ a5 O2 Y5 H8 w/ T' P& [, n
end;% b& Y0 r$ `8 h( K7 j; l7 Q
(2) while <condition> loop
0 F7 @! T, M1 a! w4 ^ <statement sequence1>;
{9 ]6 R D) N' m- n& L' ?9 p* c end;
$ T5 O: P+ Z" W6 D' I (3) repeat ) |7 Y: g! S* _- r0 `2 R) V
<statement sequence1>;
, E- h) y# ?+ U+ X until <condition>;+ K/ W' m& z" }* M3 g: I+ X0 U
(4) for <condition> to <condition> loop
# t9 G6 q q3 s6 f* l3 w <statement sequence1>;3 |9 L+ P. f! U2 H4 Y! o" V, b
next;% D. P; U8 \/ q4 A7 K
3中断语句
' {$ e, |' |: S7 t( `& c' S+ b3 J waituntil <condition> prio <integer expression>;/ c$ w; s$ v5 d2 ?
# i8 y* V( ~+ e' w0 o. M. @
6 ?( Q6 b) h; b q" H以上为常用的函数！
( c/ _' v% i6 U还有很多，如有需要我把资料发到你邮箱里
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