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发表于 2012-11-13 08:48:12
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1判断语句
: w# k2 j# _8 v9 Z& Q& ` if <condition> then
c% b& P* K; Z- }+ m. x <statement sequence1>;
# O! L A! ^' C' y elseif <condition> then) r" B3 ]7 c( D7 V
<statement sequence2>;" n. n& z8 e# n7 l" p
else . x# L$ E# o' Q% y0 b
<statement sequence3>;
& P' r6 H" \3 Q end;) j2 N% n; g" W( Y
如果分支比较多，用：
& [" L8 [4 }6 ]' L inspect <expression>
& o. Y; T ]' w! Q% ] when <constant_list> then! \8 Y# q) X1 v E6 j( K% t
<statement sequence1>;0 @# q5 D' H4 }2 G$ x s9 w
when <constant_list> then( g1 a! a* K2 B) X# Y
<statement sequence2>;* K5 s3 ^1 n2 n& v6 D S
...
/ t8 v/ M- L8 h" n, l0 |1 C9 H else
( _& K. f# A1 u7 Z, c" [, p <statement sequence3>;
& b0 h1 d3 q+ z5 v) dend;5 `0 R; Q8 j% w: C
% ~$ _- K2 A2 H/ _2循环语句8 D) ~0 ~( [2 \
(1) from <statement sequence1>/ r | z, N' ?! v* X) k: t8 ~
until <condition> loop
4 h' y( V; g+ ^! ^1 q8 R0 {! o <statement sequence2>;
' ^$ D0 X5 P! k1 x) C1 B end;8 D5 b8 l L+ C: F2 I! M: v
(2) while <condition> loop& j2 z. Z( P0 ^1 {9 k4 B- ^
<statement sequence1>;) g6 Y( O0 V3 F+ X# d' G
end;
3 Q7 i* } [. u+ h" |2 s! Q (3) repeat
9 w5 F9 Z6 Q' \' y" } <statement sequence1>;' ^) E" o8 D# ^" v- [0 p2 p _' s; a
until <condition>;
1 O( ~, W% {8 X" q8 n- f5 z; I$ p+ E (4) for <condition> to <condition> loop6 |' X; p! X8 w" H4 d1 \5 ~" q1 }
<statement sequence1>;
3 O; L* a5 h/ Y. T l/ @9 ~ next;
9 i# V/ u2 F/ l( w. a: W! {( l3中断语句: ` P5 w. ?0 c0 _+ W% }- F0 r
waituntil <condition> prio <integer expression>;) t+ e" H6 d* r6 i2 M" X, q' k
' E3 `5 e5 M* G7 J) b8 c# `* Q
( u$ h# w6 B, [3 `, ]0 }$ H以上为常用的函数！
4 R* x4 Z" X) S+ K% o* `$ p& [还有很多，如有需要我把资料发到你邮箱里 5 T: a8 a1 R+ y3 X+ T8 V0 Y
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