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发表于 2012-11-13 08:48:12
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1判断语句
: e- W4 D( ^1 i1 T if <condition> then; E" ^9 {1 o- t" C$ K' ]1 K+ M8 ]
<statement sequence1>;! x) \9 Z8 l* t, m! `( g, `4 o# c
elseif <condition> then+ m) A$ w9 _ A8 G! C
<statement sequence2>;
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<statement sequence3>;
& |7 B8 O( d! o1 A' h+ X S: S end;
% R' Z- k. v: t' C" P ]3 g" _如果分支比较多，用：
; _/ E6 O# p( X. r5 Y) q9 k inspect <expression>
3 i# p& z4 T# C }( s# C- w& B when <constant_list> then. M/ l; ?$ w: H a1 x; s' C
<statement sequence1>;: D* T# Y q$ x+ G
when <constant_list> then* u% }0 O: a* }) }: H6 Y
<statement sequence2>;$ T! U2 W# _+ L# v- e
...& G2 M# ~4 w7 J) z# ?
else. I2 _4 P7 t0 |8 n+ V0 R! R) O' l
<statement sequence3>;
$ j2 w( B' M( _9 \' o1 b1 dend;
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/ {& s1 W4 z& C5 I3 W2循环语句7 l/ ]5 N' G, {$ K% ~( F
(1) from <statement sequence1>- J- e+ f9 |& j# O
until <condition> loop* W: C% q+ F9 E* I# _
<statement sequence2>; q* N: |) Y, p8 M/ `" P& v
end;1 H" c3 i @/ O6 r; d
(2) while <condition> loop* x7 ?; d3 r2 P, C7 t
<statement sequence1>;
) U6 g! N9 m( w v5 E$ }, }$ D end;
0 F4 F% e. @. A0 E+ K4 S: T (3) repeat
1 F, v8 f9 e O0 ~' {) ^ <statement sequence1>;
4 [; f" e& M. f: | until <condition>;
1 U& p" q, j7 `& ^ (4) for <condition> to <condition> loop" |) z: J# P( l# t
<statement sequence1>;9 w$ c( {7 f6 z1 Q- ?) v2 F
next;, x; @; C, ^; U0 `
3中断语句2 T4 O- p+ r D: I) b7 U
waituntil <condition> prio <integer expression>;$ K5 h4 V! J2 R5 a
% ^) P- ~$ h; t* \$ `
9 @- M8 C' |1 x+ k9 n9 U& Q9 T以上为常用的函数！
* ^% ^7 J% @; D. c# P% S还有很多，如有需要我把资料发到你邮箱里 2 e5 v7 C a, v2 J) H9 A
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o o) l# X# i; ~' ?" `$ N/ w3 i* O; J) l
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