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发表于 2012-11-13 08:48:12
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1判断语句
+ b% A! N% T( f% C! F) O9 T if <condition> then; y* o* U) ]5 q( g
<statement sequence1>;
9 G5 q% }( A j3 g elseif <condition> then9 _3 P. o4 z7 V2 S4 F' d
<statement sequence2>;
+ }/ L1 s K- T6 K else : I/ N; A. [8 r, r5 q! H9 p
<statement sequence3>;
8 e$ S# e1 R9 b# b U" w end;
2 w) v: w4 Z2 t/ d5 u如果分支比较多，用：
: |) Q, f4 `+ S) H0 p$ p2 e inspect <expression>- K$ D" v: d# o
when <constant_list> then4 X: d. F) Z+ K4 O2 |- {
<statement sequence1>;
2 L0 ], M" K' e2 t2 y" E when <constant_list> then
# }0 V/ n3 b9 t' ^4 K5 ^, G) { <statement sequence2>;+ |. y2 G6 l/ D
...
v, F+ p" @4 N9 ] else
4 v5 ~1 _8 v. o: t9 u# U1 d <statement sequence3>;( {8 n& \6 j5 J: `$ I7 j
end;
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, e; P! [& h$ ]3 Q$ m- b/ z2循环语句
- x, R0 O, X/ z4 ~& l2 S (1) from <statement sequence1>% I% d' N' R( o9 H$ s
until <condition> loop
) H" _9 k( c* o. u$ p% m- T* G1 i1 v <statement sequence2>;
2 V, S, T9 p" }: N+ H- r; e end;
8 B. Z( ]$ i G$ J (2) while <condition> loop; n- [. s# ?% |
<statement sequence1>;
( X% r+ i5 K/ y: O) d# T end;
6 }- O# a4 X# Q1 |# i5 {+ M3 C (3) repeat * g* ^# | f* Z9 V G$ W; _
<statement sequence1>;
+ S, n2 @+ v3 o/ B5 x& E until <condition>;/ _5 V1 K) P# u( N
(4) for <condition> to <condition> loop
- p6 L7 ?6 A v7 j( E0 T( f <statement sequence1>;
6 O! L+ i5 M' n next;
4 J0 c& R J( E) O% H/ R3中断语句 m) l2 G7 t, M1 Y! u$ h, e
waituntil <condition> prio <integer expression>;6 L# F0 F, H7 X. k" i+ a; V. {4 e& H
; Q" v' v- `( q
0 [( U$ ]+ P; n; ~2 j+ X4 T以上为常用的函数！
* Z7 s2 m! b5 a. ]' p还有很多，如有需要我把资料发到你邮箱里
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