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发表于 2012-11-13 08:48:12
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1判断语句
( k( L9 W/ h- ~4 A6 p0 L if <condition> then
" p* B/ J5 t" W9 N <statement sequence1>;
( z; k, k- K2 S& g elseif <condition> then
7 O* V& C( R; h <statement sequence2>;
5 I+ B. Z3 ^ ?3 U s else
( n; k# w t* i! @( Q. L/ Q <statement sequence3>;5 l# D2 e, g8 f n+ S3 b* ]
end;& r- w( H/ l3 D6 `9 ?
如果分支比较多，用：9 F2 w4 b# R6 X! b
inspect <expression>
9 Z1 U# M" z6 E% s5 T6 n4 c when <constant_list> then4 h+ f O2 h8 e, O- t& p; u+ U2 r2 g
<statement sequence1>;. y* Y& K& Q! g8 |+ d
when <constant_list> then
' G; A% d- _+ a) {7 m2 l* q N4 e <statement sequence2>;
" ` o. b0 M" G$ ~. T' p. \ ...
$ X$ W9 R% H. b4 m2 z else
4 f8 ~3 s; D% F; `7 _) W3 o8 O <statement sequence3>;
5 v5 q! g- m7 B$ P: Jend;8 y/ {( {0 b+ n* C# G6 Z
+ X3 C- m7 C% `1 E" o7 o, I2循环语句
- }" X* g% _0 ]4 ~ (1) from <statement sequence1>
; h$ {/ V5 l$ q M) B# `2 P B4 { until <condition> loop
% Y7 R2 `7 _4 k' h. u' I2 [- ~* _ <statement sequence2>;
% |, `& ~1 v/ Q. G end;
! s% J" C# T8 u' J0 _ (2) while <condition> loop
+ x- R$ U# ~+ ?0 J" v <statement sequence1>;
2 H! R# E6 J1 ?# J' y9 g9 P end;
4 |5 B# W- G i (3) repeat * l* N% D3 D5 ~, Z
<statement sequence1>;3 Z5 \( v1 X5 j8 n- @: r% H6 q
until <condition>;
& D$ |9 J; B+ @# n5 L (4) for <condition> to <condition> loop+ b! x' e! M# J' _2 N
<statement sequence1>;
2 ^" ^5 I' O' X7 n* _) e! Y1 s next;) }" h' N E4 d) J# t! _
3中断语句
% R1 {" X6 a& _ waituntil <condition> prio <integer expression>;; l. M4 l6 X* r: Z+ W6 z) l$ x
4 l& ~' ^( q( y; R* U0 a: c: u4 _1 ~7 D
以上为常用的函数！
, `( L3 _* Y$ J- H6 a还有很多，如有需要我把资料发到你邮箱里 $ V2 _! `% p) `1 R! X4 `, P( d
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