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发表于 2012-11-13 08:48:12
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1判断语句
# E! |9 h" ]! }1 r I0 ` if <condition> then) j7 Q9 p. O7 l3 \% k4 N
<statement sequence1>;
* A9 n9 t B* U$ B' V elseif <condition> then1 v4 d$ B' x7 B6 c8 a" b
<statement sequence2>;3 l0 P9 h% x8 T& P
else
- T/ b, d0 \& H, E) k, u8 G7 a0 S2 y | <statement sequence3>;
8 t$ W; W* b/ e end;
& l3 n$ b$ I9 T/ d" q, G如果分支比较多，用：$ [6 L- O! P+ u+ r0 x5 T) Y
inspect <expression>
- ]$ e! K5 y# S) v6 |# { when <constant_list> then
) h# `+ ?0 K P3 W <statement sequence1>;
% o' Q, u4 K9 L& [; G# v: @$ d when <constant_list> then1 |, ~+ M9 p" u
<statement sequence2>;
/ ~% b0 \4 e ?2 A, D# J7 Z5 V6 T: I ...$ f" K8 u `2 G) |: k7 f
else
G, E) H( f7 C' f+ W <statement sequence3>;
( \ q& u, t4 r; o8 uend;- K" _* l) h9 i& g( r3 G
/ [- n- N/ c3 _; ? P2循环语句: h% c) E8 ~# x$ j" ]! {; a
(1) from <statement sequence1>
6 l4 `& p* b @: v7 \7 f: W; V2 e until <condition> loop
1 W- H8 K" A1 [* Z8 K) o <statement sequence2>;
; e' C% `; K1 ^/ n1 q0 U% K end;
y+ w _2 F% | (2) while <condition> loop8 S b2 G. L* g# H1 R# N' |
<statement sequence1>;7 s8 }* p7 n, p7 {/ H
end;
9 l- q z- Q' a (3) repeat / o, ^ U5 [' e. M! h" t3 E0 _3 O
<statement sequence1>;. n/ c" z* |8 i
until <condition>;
s5 |0 @7 H5 P: ^) E$ [ (4) for <condition> to <condition> loop" S; e1 H! ?1 Y9 c) U
<statement sequence1>;
( t2 M9 I/ v$ \! i next;' p1 F0 @! P0 q4 m; |6 ^5 S) x
3中断语句
. C* y' B; v/ a( i9 s3 x9 V waituntil <condition> prio <integer expression>;
; R. ?0 a% u5 ~+ r0 {) H. x+ }; E* g; H) ^7 @. \4 c& O" K! `
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以上为常用的函数！3 _6 g0 | x1 p2 i p1 |
还有很多，如有需要我把资料发到你邮箱里 & M7 U7 @) g3 g
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