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发表于 2012-11-13 08:48:12
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1判断语句
3 r2 l. _* k) m+ I: Q3 Q* F if <condition> then7 X* I) q- [/ W% i3 q% Z7 O7 b
<statement sequence1>;
- A' i3 z; q4 ?; H elseif <condition> then+ `# `$ M! C0 U! U
<statement sequence2>;
& F. i2 {; C, T+ i8 w3 L+ @ else
* J9 F+ W I% d5 r I <statement sequence3>;5 R9 T" R3 {" W: e6 H) H
end;) ^/ u8 t+ u8 L& @# V+ G
如果分支比较多，用：9 p9 a, _& H% T) b
inspect <expression>1 f" `: ^" w5 m$ E/ L' u4 | x" ?& W
when <constant_list> then! ? S! J! m. c @) `
<statement sequence1>;
; j$ i# e4 w' p4 [1 t& H& _ when <constant_list> then/ ~( T- o* K1 w% n/ v
<statement sequence2>;
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else
- x# x4 _9 b& K/ | <statement sequence3>;
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2循环语句% ]7 E' M5 l' s/ @3 f0 M
(1) from <statement sequence1> A3 M+ l' u0 B
until <condition> loop
( [( Y% L3 @/ e8 ^0 [2 f <statement sequence2>;, D0 K" P9 W6 N3 ~6 e/ n3 `0 T
end;: R2 z+ l- P. g" @! d1 g8 r
(2) while <condition> loop' i& E# c& S1 `& ]% F7 Z2 f6 q
<statement sequence1>;# O& b; _1 h- I( j3 a% C) B/ Q8 h. C/ M# ]
end;
+ i0 R9 p; V% W/ M (3) repeat
4 Z4 ~5 g- c, f2 D' N# D2 q s <statement sequence1>;
, M" {/ V6 @3 w/ W until <condition>;# W7 w2 B1 a6 B+ a1 ]
(4) for <condition> to <condition> loop l7 I2 w+ o6 m7 f' _7 I) {
<statement sequence1>;
% O; a! b$ v; h" N: z next;7 S, p0 U9 H3 [) R3 ?* G
3中断语句
& H" t5 x- d+ K8 E0 S" L0 m7 f waituntil <condition> prio <integer expression>;8 L. ^; b8 |4 s, k7 K( J
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; H. R8 ^ r! {0 i- n' V$ m, ]以上为常用的函数！
- f0 b1 e0 y# c( N1 q还有很多，如有需要我把资料发到你邮箱里
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