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发表于 2012-11-13 08:48:12
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1判断语句
5 ~7 K: p# C4 V- v if <condition> then
% `0 v% R# t$ [, G! ? <statement sequence1>;
, ?# h9 l. Y4 R5 A' K' \ elseif <condition> then. O5 C" V8 ?6 T6 ~: R
<statement sequence2>;
\1 E4 Y. ^+ @$ _1 y( ]8 I5 ] else / z+ z# K6 U3 i! e; u% u3 w
<statement sequence3>;
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如果分支比较多，用：
' m+ j9 _; y0 m0 N: _; ?! a inspect <expression>" F" w4 K9 F+ ?$ }5 ]
when <constant_list> then& ?1 _% }) ]3 f3 @9 y
<statement sequence1>; \2 `2 Q# A9 ]/ }" S
when <constant_list> then
6 r7 X, m, q" Q <statement sequence2>;* `8 d! b; P; Y$ k
...) z% @' S% ]) I
else! W5 ?4 q9 C1 s; k- G' W/ v0 `
<statement sequence3>;) S3 s7 ]# D, E3 o+ P
end;6 k6 T" F6 j+ s+ M! ^
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2循环语句# B4 [- ]5 h4 u! b
(1) from <statement sequence1>
! b9 d5 o) [3 ] until <condition> loop
' w$ Y. _1 {+ F2 U4 |" l, e <statement sequence2>;
/ o6 V1 O- Z; z9 q) l end; E4 s+ Q1 ?# |& r4 k
(2) while <condition> loop% [9 T' ?( z+ K' c
<statement sequence1>;$ t5 z. b: ]4 d5 q) Y' Z
end;5 Q; |* j! k4 I9 l! Z c& b
(3) repeat : p% F- v% \+ Y3 }- C3 W
<statement sequence1>;
. N5 z* l, W# o until <condition>;
) W( O. D9 {- x' q3 ` (4) for <condition> to <condition> loop# |5 K) x# {& z/ }( Q
<statement sequence1>;
1 y6 c9 r# U5 s1 a( z& ?7 L' k next;; h) x5 s5 ?: l7 ]' b3 H( f
3中断语句4 G7 c ^5 [ p
waituntil <condition> prio <integer expression>;
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以上为常用的函数！' u: ?% W2 J4 A# r9 f' E
还有很多，如有需要我把资料发到你邮箱里
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