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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
5 K! J: Y2 c$ |0 o- C7 l if <condition> then
9 z7 u" J! [6 e% P' o <statement sequence1>;
# @$ n. f5 }, @ elseif <condition> then# V* t) q. e) a8 ?! m
<statement sequence2>;; w* ~8 S4 {9 R6 d3 {* q4 ~
else / H, M$ ^) Z( P* n- V
<statement sequence3>;3 k% B7 _" }) i# c" r
end;
" c+ m3 H* d+ R4 X9 O如果分支比较多，用：
* h- I; a( m% Q- w. o* ] p( D inspect <expression>
( c v6 i' n: B; N8 _ when <constant_list> then. n& f( W$ z" O( G9 L4 T# v
<statement sequence1>;
( P% _ a6 f* y3 K+ n* w3 _) C; I when <constant_list> then' f) ^" F2 y) R5 Z
<statement sequence2>;2 K. T. C' b3 ]$ f( ]0 X
...
7 `4 S! X3 k$ a+ D; l! r else
; L9 T$ |& R+ A5 k; K5 _" d <statement sequence3>;
5 d' @# A5 l5 _1 y ]$ ~) h* t$ l' a# [end;' m6 U$ H% i5 N# ^# D
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2循环语句
% C4 M5 L6 h3 r9 w: P" g (1) from <statement sequence1>
4 E6 E L. X, ~/ Z& X9 Q" ^ until <condition> loop# a; [5 o0 @1 k+ I
<statement sequence2>;9 V+ l" d" w6 m4 k: G! E& d( _7 B
end;
- H9 R. \( i% t, H% x) l! u. C (2) while <condition> loop
, }5 l9 T+ X9 a5 u& e* _% J1 F <statement sequence1>;
T. G/ s# r5 J& m8 h; e1 u end;/ P* N( P D5 @; R
(3) repeat
) y. g4 X6 L5 n" w) J$ R <statement sequence1>;
/ n3 b c6 `- o+ L8 n2 m3 |7 d5 t until <condition>;& U- C- A& ~9 F
(4) for <condition> to <condition> loop v6 \) w% o" i3 B( O6 D* Y
<statement sequence1>;2 a, x9 G4 N8 U; k+ a) ]- G: v# r a
next;
3 l1 _" A) [1 `% S( c3中断语句/ Z5 v2 T/ v/ W
waituntil <condition> prio <integer expression>;- F, y' k- t7 S- o6 q9 Z& y
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. ?! h+ ]* e' y) v6 Z& i( I' u以上为常用的函数！
2 s1 ^, P5 ~. \& W4 n还有很多，如有需要我把资料发到你邮箱里 ; {# R G4 V' V3 q0 O
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