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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
R$ {7 w+ G( ~7 | if <condition> then
8 i4 W0 I8 {0 m0 C! w <statement sequence1>;; b9 i. ^" ~3 ^4 ^. S8 v2 j6 ?* V ^
elseif <condition> then) O u5 b) Z! u
<statement sequence2>;+ S& B/ z8 G) P2 q; G9 y( l2 A; T$ \5 B
else
- A8 a0 ^: m' E2 I8 E. o: J <statement sequence3>;; I9 n2 R, {7 k
end;! [1 f/ h0 D0 z) m: E
如果分支比较多，用：
) O+ K/ n& {: \# A' n7 L inspect <expression>) k$ T; E, @# B+ e
when <constant_list> then% j p W! y9 ~3 O
<statement sequence1>;$ U6 }9 s+ ~4 D" M+ E
when <constant_list> then* q0 {/ F+ ^5 x8 x
<statement sequence2>;" b) T! \ @; o' v% i" e3 L
...
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<statement sequence3>;1 Z/ U7 [1 _* ]
end;
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6 Z- t* e% L6 H" O) \7 _2循环语句7 c6 O" B$ r- n1 ?5 B$ J
(1) from <statement sequence1>
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6 `/ a! p; ^# i <statement sequence2>;5 H$ U2 H5 w7 z8 ~4 s
end;
/ U# w0 a7 H. `- y+ N (2) while <condition> loop3 B# C: b. } A% C
<statement sequence1>;
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(3) repeat
6 [( ^0 D# S" A( q2 d. K <statement sequence1>;
* O" _) ?9 Q5 U until <condition>;6 K# q# U# W0 m4 y
(4) for <condition> to <condition> loop! M0 `/ A8 ?$ o' y+ ?
<statement sequence1>;$ T: l; W% u* i
next;& J- k( B7 z) s% _
3中断语句! ?3 V% i4 q8 g9 Z6 {% H
waituntil <condition> prio <integer expression>;" l- |6 a9 S, \/ R
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; M7 U) E, R+ b2 l# k% h以上为常用的函数！& \% J) m0 J1 C8 T9 H9 p
还有很多，如有需要我把资料发到你邮箱里 ( n( U5 Y, I# }7 f) C& U8 T
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