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发表于 2012-11-13 08:48:12
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1判断语句
. w) A: H2 |% ?' W5 V% f; c if <condition> then
' j& ~+ z5 M" R' Z: Q5 [, f <statement sequence1>;
8 E4 I! L# T, ]/ i; U. `+ g elseif <condition> then
, e6 }2 ?( B/ X" o' u- S( ^$ V' d <statement sequence2>;6 o% s! l8 j) b+ h4 K- M
else 6 n1 g. X0 j% Z; R+ {. P: Z5 {# J. V
<statement sequence3>;
7 F' e! B2 T. y- T5 n8 w- d% ^ end;
- @. Q3 Y9 G" I0 n; d' c如果分支比较多，用：
* T; c( I/ @! H+ ]5 L( ~7 A inspect <expression>
- P8 e$ m$ y" r! E3 F: A$ w5 n when <constant_list> then
' m& M4 _; `( O5 E: ^+ c' o( } <statement sequence1>;
; H+ W! ?1 C B g. V( C6 s! N when <constant_list> then& ]8 h/ Q* C) |7 W7 n# v
<statement sequence2>; [5 `4 ^) o' @3 H
...- x, v) s3 ~' A1 i
else) C6 c- G/ p: T) G) @
<statement sequence3>;
+ @2 {- P$ Q7 y* wend;
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2循环语句0 f% H* b, w5 O3 R! D6 `
(1) from <statement sequence1>
# t) D) V( a1 ]8 t( f$ s( P9 R$ } until <condition> loop
) v5 x: ^* L4 b8 K4 y5 r- v <statement sequence2>;
- [4 \+ \# H9 _9 R. g) D end;1 Y1 }3 |8 ?# o6 O. N- D0 `# i
(2) while <condition> loop# I* k T( K" E
<statement sequence1>;) j* x! y# [+ i; D0 n* B# j
end;
0 w; j: S( T8 u _; d5 j (3) repeat
( e! \5 p2 C1 d# c0 G! k' E' ^6 @6 L <statement sequence1>;/ y% d/ n3 L: i
until <condition>;* L6 w" r/ p/ x: T3 T; `& i, h
(4) for <condition> to <condition> loop+ M- s' Q) Q/ {' ~
<statement sequence1>;
6 c$ |2 c4 X% c next;4 _7 X( U7 ^0 y! D6 Q
3中断语句4 v7 z% o& W1 B- n9 y
waituntil <condition> prio <integer expression>;
( Z6 A7 Y" o6 v ~
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以上为常用的函数！
% [* M5 D0 |" o' h还有很多，如有需要我把资料发到你邮箱里
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