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发表于 2012-11-13 08:48:12
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1判断语句
: x6 N8 O" ]5 k0 Q j if <condition> then
9 B% P% u" u& c0 r6 H <statement sequence1>;
/ C1 C' Z7 ]+ f: G- p; A" E! e elseif <condition> then
& x$ g8 e Y' T <statement sequence2>;( j0 R2 C8 ?; s+ M5 M. F/ @& y H
else
$ b- p" F6 B7 V) ]; d/ | <statement sequence3>;
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如果分支比较多，用：
; X1 b5 c: K5 h) X% C inspect <expression>4 j0 R9 L* Y% K! F8 x
when <constant_list> then
) Z/ [/ i: y/ ~2 e. S/ }' @: r <statement sequence1>;5 F; v4 h& f9 J' q
when <constant_list> then# O6 a1 |# t- t* N
<statement sequence2>;5 a% D- |: j! J9 a( @/ p. t
...
3 f: x6 H& o: Q else
+ O' @2 d+ I) m" H$ N0 F* ?% e <statement sequence3>;
" s8 r& @4 f+ \: g. p% t2 ~end;# P6 v' B" t. S1 p+ ]- Y$ l( B/ c
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2循环语句% q1 q) E* L" f$ P" {0 ^
(1) from <statement sequence1>
1 b6 H0 o8 z* y1 P6 A4 R o. M until <condition> loop) c0 a' R3 b6 g! D9 X
<statement sequence2>;
" f7 u$ d$ c" S6 P b end;6 A% [) y1 K1 u: O# b
(2) while <condition> loop
6 u( @1 `8 J; u% m3 p) f% j ^ <statement sequence1>;1 v4 z7 |, @! ]9 ^; Q$ K4 i% @+ P
end;
0 u' N4 g4 E% a& |0 y" n (3) repeat $ m0 z5 C2 h( q& Z6 @0 T; Q6 ]* M+ q
<statement sequence1>;
4 ~- M* ~5 g v( Y A until <condition>;
" N; U( U4 F( N/ S' s (4) for <condition> to <condition> loop
2 ^# _. d( o G* p <statement sequence1>;
7 ?- I+ o& H- p6 e next;
7 Z& `3 I! u Y0 g' F Q3中断语句
0 M4 F1 z( u4 N0 O, n4 q waituntil <condition> prio <integer expression>;. H' l4 i9 f5 Z5 `# g9 ^; b
4 {9 N+ N8 A# g, }
# `& a# y m* x. w; B5 U f' K以上为常用的函数！0 }, k: [% q8 p' p& z7 L0 [
还有很多，如有需要我把资料发到你邮箱里 2 N3 ~2 k4 T+ ^
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