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发表于 2012-11-13 08:48:12
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1判断语句
3 G# B& u9 u0 N9 h if <condition> then
% C3 ^2 f- o$ x- V6 h <statement sequence1>;
5 s U6 B( Q1 ~ elseif <condition> then
: Q4 b% a2 e; Y: I7 t <statement sequence2>;6 d' K0 y# l" b. d, k, s
else : I- Q$ ]$ ?7 k
<statement sequence3>;
7 n5 ~8 A: m( W2 Z4 Q! e end;
7 U9 `8 o5 m, h; h }7 Q% q如果分支比较多，用：
8 ]2 D' p2 V7 n5 O- R2 ? inspect <expression>* a: w- V: _8 n3 X
when <constant_list> then; _7 M- g5 _+ S h1 Y1 J3 t
<statement sequence1>;4 h: A* a6 G' {9 ^* {
when <constant_list> then3 `0 @3 M0 I$ Y" |/ H6 ?
<statement sequence2>;$ }6 P7 U% H3 t% W
..., j5 G% x: i T0 x O3 y
else& {! S! N6 ^0 |$ y+ D
<statement sequence3>;4 q/ s$ k* q- Y( F: k
end;' ]! b8 [$ p9 b, K9 M/ s3 o
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2循环语句
5 E- D+ ?$ O& _& H2 x/ Y* c (1) from <statement sequence1> Y @0 b. P# w8 P' ~
until <condition> loop
6 P$ ]# s( m! W2 z7 D4 i2 ~: \. g4 n <statement sequence2>;
7 [+ B% I W* ]1 @ end;
) V: I# y! A0 r; m; L0 M7 w (2) while <condition> loop
) `, L/ \7 e$ |( M5 m& G <statement sequence1>;
3 x3 @" F- J% V5 y R end;' U! n8 M' W6 Z
(3) repeat : h i9 C# ~( ~$ q$ s+ q' l2 E% s
<statement sequence1>;
, h- ~5 E/ l; D; } until <condition>;
1 z3 }8 j9 W2 c6 }/ B' F (4) for <condition> to <condition> loop) U2 Z, ]6 o6 `' Z# E9 h
<statement sequence1>;
) X4 n/ x+ O/ e. ] w% T next;
4 S. E6 Z6 d4 i' H3 B( Y5 n) Q" `3中断语句
/ H! c6 V( e8 p2 b waituntil <condition> prio <integer expression>;
, E; v) f/ U3 c0 |' d- G$ ]$ j9 _) x- i! q4 {3 r7 K0 V) ~8 l% k
- E O) z7 r1 L8 { R! m以上为常用的函数！, T& K+ s, a7 j9 e
还有很多，如有需要我把资料发到你邮箱里
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