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发表于 2012-11-13 08:48:12
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1判断语句
6 l& p7 E$ F" o. J: z if <condition> then
/ Z0 X* h: A+ D0 K5 P5 r' ? <statement sequence1>;4 y) U: ?& p1 P
elseif <condition> then
* s. _: r. Y9 R) x6 a: N <statement sequence2>;" d1 W& d, w2 A+ D' y
else 1 U4 K! U) _5 P) B
<statement sequence3>;
- C( ]! `" }. I end;7 V! F# `% ^3 }7 m& F! s
如果分支比较多，用：
; c" A- ]0 F' O1 x$ N inspect <expression>" i$ [6 y0 j8 y( @: D
when <constant_list> then% P; E% Z f+ Q6 a. y
<statement sequence1>;
; F( c& [# k5 p( {; Y when <constant_list> then6 G/ g, h. z* R; ^! T9 g
<statement sequence2>;, l$ { E5 A4 k, ]8 w' p5 v
.... A6 F: ?! b' j1 k0 _
else
' x1 u' Z% `. B% }( J. X <statement sequence3>;) a# C% e) c& f T, g
end;
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" @9 r% S1 O; p4 ~2循环语句* r8 y6 J0 f4 F7 F+ B0 D6 n8 T
(1) from <statement sequence1>
1 P9 w! x2 i. f9 U* I$ H until <condition> loop* F7 a6 J; ?+ B' d- v/ M4 C+ e
<statement sequence2>;
& ]$ l% L0 t" l8 Q% Y( Q* z |- f end;
5 y: o0 Z; A# j (2) while <condition> loop
% l& Z7 G" T- H2 F" @1 f2 O0 G! x6 { <statement sequence1>;1 K2 v# ~5 f* r. R, T! D( u, m! }
end;* u' r3 F3 Z6 y, i
(3) repeat
7 i! [; I5 |5 ?1 P: f: q! X" `% V3 M <statement sequence1>;. D# c; n: K* \$ P, D [6 O
until <condition>;
' S) O: z M) H (4) for <condition> to <condition> loop0 _+ ~8 z9 H' x$ F: P& H
<statement sequence1>;
. t) w6 p. [ x& c) A next;
+ [; N' a( Q; ]. {# Y! J3中断语句
5 I$ B6 I; x- m waituntil <condition> prio <integer expression>;
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以上为常用的函数！
) R5 ~& y6 `) G! M/ y, ?还有很多，如有需要我把资料发到你邮箱里 5 \+ ^9 ~, ?+ X) T" ^" B! b
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