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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
+ x. N: k1 W3 G/ k+ f if <condition> then
* C$ k1 E$ B' l, a" ?6 H# C5 I <statement sequence1>;
% W; N9 y9 U# s8 ^1 {3 E) } elseif <condition> then
; c) m' v2 x( E& h <statement sequence2>;
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<statement sequence3>;
) E9 q: |8 h) x+ w; U! J end;
, y: N; d% s; q/ Z- d, t如果分支比较多，用：
4 p# _- | Y) E- b inspect <expression>
; y: |6 d' [$ N% a' ] when <constant_list> then# e3 e2 o5 M8 W
<statement sequence1>;8 C4 l! |! {5 C v0 u6 V( N
when <constant_list> then
$ \7 Z0 ^% `* F- |" y( A <statement sequence2>;
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else
L o) Y6 r: I2 W2 ^0 I <statement sequence3>;
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2循环语句
% C1 p/ N$ m+ @% w( | (1) from <statement sequence1>
# k8 i! L, @# H ?; p( | until <condition> loop& \3 n8 C6 V% S6 [; i- d/ N8 r
<statement sequence2>;9 A2 z. ^% D& {5 i3 y) R: K5 `
end;
% @' H& m- ]& b/ g& i/ q2 [$ |! u (2) while <condition> loop$ @2 c% \0 \" C1 i( { J
<statement sequence1>;6 b0 r3 v2 a5 [( a) Q
end;7 k6 X4 y# ~( d' g1 x+ d z
(3) repeat
O& C- z( X" U: y5 o1 w9 |( G7 f <statement sequence1>;
: \ Q1 d. `! [% Q% A7 L until <condition>;7 K4 M2 l4 L( b1 e
(4) for <condition> to <condition> loop
; a' s4 d3 {! Z7 E; b( D+ v' c <statement sequence1>;
2 ^9 [$ \; ?& g; ?+ w' m0 Z9 M next;
% ]7 K$ H! L) J" {6 F3中断语句) c, \2 n/ ]9 u
waituntil <condition> prio <integer expression>;
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3 f' v3 m2 P3 U6 y& B以上为常用的函数！
0 Z4 C2 t7 t5 C+ {) p还有很多，如有需要我把资料发到你邮箱里 4 w G$ v0 E0 v% A
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