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发表于 2012-11-13 08:48:12
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1判断语句
4 s7 M& o4 ~4 q" u3 @ ~! d if <condition> then
- Z( G' v& Q4 J* Q: }$ O6 p2 x <statement sequence1>;0 l* x% D4 I1 j0 k$ y8 U( W
elseif <condition> then
5 w; J. L+ |( H. V% }4 _ <statement sequence2>;
$ \2 E9 y, U) P else
8 y3 I8 P4 t( S" w <statement sequence3>;
' v0 p( B& a& |! a, V O end;
\! [5 C, n. v9 V如果分支比较多，用：
H I: P( e: C) ?5 w' M inspect <expression>
3 g8 V/ L- l, K0 r. Y6 B. q$ y9 h when <constant_list> then
# n0 ?0 c/ g* V \ <statement sequence1>;. {5 F1 l/ W* G
when <constant_list> then
5 ^0 B/ S6 C- y" I <statement sequence2>;7 @; `7 m7 j9 k4 K% Z( ?
.... k1 D- T# r# X0 ^& X" f
else
7 F2 I0 @, R7 e5 h' `) h <statement sequence3>;; g: M& `, s' d3 z1 a. @: W& u
end;! S5 h2 h0 I" D, N
5 Y, z+ a7 a5 I( ]2循环语句5 I+ v% I& j$ C0 N0 p* f( k
(1) from <statement sequence1>
+ y d/ {% D( M% `# a6 F until <condition> loop% [+ ]: Z* e8 o! x! x
<statement sequence2>;5 p. G5 Y, l4 a o5 W" U
end;
* z( @- [% h o6 V/ [0 J (2) while <condition> loop
1 V5 b1 S* j& K% D o <statement sequence1>;% m9 Y* {( E) `/ P
end;
( Q& V, l0 G, V. @ (3) repeat % H) k+ }# t; f6 f
<statement sequence1>;+ Y8 b& Y9 k. n. x9 d8 F* f/ b
until <condition>;3 p5 {2 t. C! h! Y5 q; M
(4) for <condition> to <condition> loop3 G# q7 J0 C0 C5 h4 m6 W( I& F& j/ |3 D
<statement sequence1>;- J6 B, U9 G& e
next;
- X O! Z4 }6 |; p4 w3中断语句
% o t6 `- r$ T) [2 e5 R2 n* I waituntil <condition> prio <integer expression>;* z+ p6 {2 K- {" O3 T8 }, A% B* x
v( _3 _" Q- S' _; Q2 I4 u& c1 H
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以上为常用的函数！& m# n$ N6 @9 X; c3 v. H6 r6 m
还有很多，如有需要我把资料发到你邮箱里 8 q1 W j) V( [# v! ^+ t# m
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t/ e8 E4 u1 i5 d/ a/ [1 x. L& O* ~, i. J4 ~
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