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发表于 2012-11-13 08:48:12
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1判断语句
* C* U! r# |2 Y6 O if <condition> then
+ I1 p/ H4 s# r3 ?- I/ }7 `* Y <statement sequence1>;
: R5 q( \( P2 G, I; F5 v' z elseif <condition> then
0 t/ ? R$ O: h! Q" i! C <statement sequence2>;6 b$ i/ `6 c. ]) |4 r5 W; N
else % \! R/ \! Q6 }4 S4 Z! [
<statement sequence3>;
& I2 l( |5 ~1 S# C. O' v' k end;. A h! o2 o w4 J0 k" n g
如果分支比较多，用：
/ W+ G0 r H: i0 J3 `( }, y inspect <expression>
0 c; q/ N8 e6 X; L( x+ I when <constant_list> then
/ C: t( c+ r$ h) P5 I <statement sequence1>;
) w3 Z. h0 d2 k when <constant_list> then8 H3 k$ ^; C0 d. ?9 T
<statement sequence2>;
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else
* C# `8 i, T' g) U+ \ <statement sequence3>;
9 R# a. x& u4 J: D+ jend;& c0 H- n5 O3 y
4 {1 V1 v1 X& [( g; @" z6 D9 b! @4 F2循环语句$ |! i) a4 r; C( t
(1) from <statement sequence1>
8 C$ q3 E0 T& g" l O until <condition> loop
! `9 i3 k1 o }6 ^/ p9 @' t9 C <statement sequence2>;
( c7 p5 J( X% C7 c; i; ^ end;
+ ?& J' a5 i, x& Y8 ~. ^ (2) while <condition> loop; N9 W) X* H Y8 ~
<statement sequence1>;
R7 |2 p5 Y) w5 F* F1 ~ end;, o, D) N$ O' y- U
(3) repeat
8 t; d& T3 ?$ l! R" Z8 j <statement sequence1>;
7 d+ J! A8 _" Y% a+ j; q until <condition>;
* t, i$ ^2 s+ ~4 Q (4) for <condition> to <condition> loop$ U4 _ b" x3 C. S9 t0 X$ x
<statement sequence1>;
. Y2 {6 |% g7 V j6 t( V5 ? next;. ~8 C, q+ b7 ~$ C
3中断语句/ V# f: b3 Y$ e; V) s l
waituntil <condition> prio <integer expression>;1 c' O6 \/ E; d. w! H+ K i; \
$ E$ n: q( `( U- ~# j) ]
e: w! h- p: C% y) j: q! z1 ?3 R以上为常用的函数！
* u! g1 `- I! {9 ~* m5 Z还有很多，如有需要我把资料发到你邮箱里
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7 [2 A5 D, B8 B, ^1 W ?
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