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发表于 2012-11-13 08:48:12
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1判断语句! ]* \) H+ m+ l/ `/ Y
if <condition> then
- D5 l# I0 G5 Z' z; l3 b' W9 O <statement sequence1>;2 C% M; }# V$ |- y0 W: n& I
elseif <condition> then' Y$ w3 p, x- C. Z2 z
<statement sequence2>;7 c' ]! M* I$ l8 \
else 1 ` H; d5 Z: r( W% v4 Q
<statement sequence3>;
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如果分支比较多,用:7 b( u% E7 d! R# ?( `) V0 i; g
inspect <expression>
6 N& N3 T$ m3 k: z$ R when <constant_list> then
. ?. j6 x0 X7 u X* b' T' g <statement sequence1>;
$ q, ~& p8 i2 |& M when <constant_list> then( V( n' E; b' L3 h/ h7 }/ b
<statement sequence2>;( C! L9 U! c: X6 ?9 y$ `& |& w) ] m! u
...
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. E3 z8 p8 G, l# K9 d3 b/ I <statement sequence3>;
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2循环语句4 n r8 n3 a# c) J% n. x1 r
(1) from <statement sequence1>3 F3 Z: Z, V. m
until <condition> loop9 [+ g/ S# [% C1 m
<statement sequence2>;) ^+ A+ `; |3 x
end;: D; u; H2 p" @* U3 G- f% N
(2) while <condition> loop- W- ?5 C6 C w9 E
<statement sequence1>;) @* G4 g9 f h& t) y
end;) M$ w" J% L) d$ K" F
(3) repeat
* _4 o8 z c* F& n; h <statement sequence1>;4 W0 M& }( @8 f- k" E# x
until <condition>;+ o. |% ~5 t: b0 e, M' K1 y" Q
(4) for <condition> to <condition> loop
4 q; q! A. a W: h7 m" F! T <statement sequence1>;
. @% i% ]: l0 I/ @3 \2 M/ E) u next;
; L; R8 f+ a: T# u; Z# |5 K3中断语句
7 s- I5 _" h4 ?( E' Y) k$ }6 U: m waituntil <condition> prio <integer expression>;/ V0 d E: z" A
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以上为常用的函数!
/ r, w' B, A/ u0 L- e还有很多,如有需要我把资料发到你邮箱里 0 w" n8 J/ z0 ]+ G7 O
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