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发表于 2012-11-13 08:48:12
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1判断语句( I0 o" V2 a7 j2 S9 ~2 o
if <condition> then
/ h' M- M4 E( q- w% f$ Z% j <statement sequence1>;
- }6 ` A2 D2 t5 { elseif <condition> then
8 s& {* B3 G! P& }% F# D <statement sequence2>;2 ]# U1 V$ K& G- ~, K
else ' ] S# Z @* r* z1 T: f+ x8 H
<statement sequence3>;2 \$ ~ W% |" l* f
end;
: G7 [$ z6 m1 s r+ ^' G+ y如果分支比较多，用：
: V- p5 z& k, c. |; | inspect <expression>5 m* O0 |1 a$ I" s3 U, F6 V. l
when <constant_list> then
5 @# d: t3 ]; h' p <statement sequence1>;
& G' z. x9 F/ p5 H when <constant_list> then
3 u8 [2 E; H5 J# L/ g( u <statement sequence2>;) _$ Y z4 n1 a5 M5 ~
...
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<statement sequence3>;
; t1 j2 U# K- k3 nend;6 c2 b( e0 f: Y/ z1 L
9 z) ]. w1 S: u) ?
2循环语句
* l* I9 X2 k- y (1) from <statement sequence1>, l) i6 q: B4 w7 r2 j# p
until <condition> loop* B9 g0 x( P7 w- e8 L" ^
<statement sequence2>;% `, L, q0 o' m" O
end;5 P9 W( D, G+ y: ?/ o# W) V+ G0 t
(2) while <condition> loop. I$ w% C1 q5 ^
<statement sequence1>;& s& T! F+ w i$ c7 P
end;- D6 c) V& t* v& n0 d l& a0 X$ e& P
(3) repeat 4 b! f( I% r- Y1 C1 U) `# E
<statement sequence1>;
) Q i6 B. f0 |1 Y until <condition>;6 j; b V& y7 I" {2 w! m/ q
(4) for <condition> to <condition> loop; J, H r1 l! y* f/ t/ v- a
<statement sequence1>;
) x; _! n9 t' h next;
& ^. [' _" }; T3中断语句' `8 u; y4 y% f1 Y3 ^/ W5 \! o
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
9 S3 j3 n% ]; ~" @还有很多，如有需要我把资料发到你邮箱里 ! H- I( `- ]8 }% q6 }/ Y) I& S
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