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发表于 2012-11-13 08:48:12
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1判断语句
& I9 @' P# D/ P. I8 ~1 B# T if <condition> then9 J, B6 f; d7 s4 V5 L" Y# F0 `! A
<statement sequence1>;/ d8 J& y2 o" q! |6 G8 `0 q! V
elseif <condition> then; p+ R% l" Q4 ]7 _7 |
<statement sequence2>;
m$ j) X9 p3 u; I( |+ f1 [' m else
& X( M( Q! x" u5 p1 `- c <statement sequence3>;
, P" f! N7 N0 @. ` end;
7 k$ v* s+ E! u" S* l& d& s; U如果分支比较多，用：6 Z \ [; U$ j6 j, M6 Z# z( r
inspect <expression>
( S1 w. F: ]$ c2 @) p9 E6 T when <constant_list> then; L) t; q b% a3 O- w
<statement sequence1>;* G9 s8 L0 i: {; d0 p+ L8 t
when <constant_list> then
$ c+ M- ~7 A4 Y3 F9 j9 S <statement sequence2>;- c, h- |0 z' a: U( S, g4 a. V
.... V( O+ [2 D0 b* X) G
else
) Q* `* X& T5 x. C y <statement sequence3>;! y# R2 |4 M, G+ f) ^: \ P3 H/ P, f
end;
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" H, O+ z; F2 o0 ~; H" V C2循环语句
: ~" V* d1 X1 m (1) from <statement sequence1>, U9 f9 z, F$ E- i2 A2 b+ |
until <condition> loop% r w( }& W% j' F0 ~6 N) Z
<statement sequence2>;
3 c: ^ K t# I6 d' \+ n. B end;( E. U3 l' Q2 g9 u
(2) while <condition> loop- Z! o5 C z( J+ X' e p
<statement sequence1>;
b0 u- p! Q9 t end;8 h- u$ T' z6 V
(3) repeat
5 k A) |' m4 F9 u( E/ x <statement sequence1>;
. O! N% e- N; K9 l until <condition>;
5 Q, P& i, P, x& ]$ D (4) for <condition> to <condition> loop V- a# {4 I" S* ]* n
<statement sequence1>;
) I9 z1 e2 e$ |3 s0 a! J next;
V- {; _) l9 L" l4 `3中断语句
/ D5 ]2 g* [4 T( [ waituntil <condition> prio <integer expression>;! Q! u0 G; I' r4 p% g
8 i* m L" E4 D- g% E# E1 ]; J4 r5 O- M
以上为常用的函数！
' C% r. d* o+ i0 ]还有很多，如有需要我把资料发到你邮箱里 ) B' E# j# N l2 K* \/ L. k
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0 p! ?7 u2 F' |3 Y( C7 L 0 P' Q$ W! @8 M8 h. C8 o ]
2 z) N4 w% B9 i4 y
! }8 F; E$ s, K1 W1 b9 ]3 x+ y7 N" o' n; A1 }) b
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