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发表于 2012-11-13 08:48:12
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1判断语句' q: V) V5 j6 e# ^
if <condition> then
$ U( E" _7 W# N4 \* h! \ <statement sequence1>;
' E4 ?% c9 z2 B; [# Q elseif <condition> then: I( l8 E4 L2 H, N1 T( _+ m
<statement sequence2>;
% x1 O3 L* r# J. W2 z! x else
$ p8 Y% Y! h' @, j6 V! Q' G <statement sequence3>;
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如果分支比较多，用：
1 u: ^9 I) G2 g; |' L7 o inspect <expression>
: k5 a: C2 c' K7 A( m+ W0 ~ when <constant_list> then. {" _+ X* K8 x5 \: u$ L
<statement sequence1>;% D1 w6 c" {7 }1 V4 G2 V _
when <constant_list> then
# H0 Q, k/ c% p1 ^- h( R <statement sequence2>;
% P# Y# t4 Y5 i4 F9 A ...
: ~8 z) }/ @/ H b else$ S0 r2 l* o5 B' g
<statement sequence3>;
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9 A# g: \( x l0 _2循环语句
! b" ?( }! K) q8 d (1) from <statement sequence1>1 `# I! h3 T2 j' g$ T+ E, p
until <condition> loop( o3 {$ c# o& R ~6 ^" ~
<statement sequence2>;
- t& _ u9 G. N' W9 R1 K" @ end;# p* ~, t6 F X+ `( L4 d
(2) while <condition> loop
$ t5 N- w9 s3 D* m0 I <statement sequence1>;
) V5 O) f) a# b- i0 z6 t end;/ v, Q; y0 P* U+ h
(3) repeat
) n9 N2 X0 \! r <statement sequence1>;
% }( a: J% [8 e$ @0 v until <condition>;
/ n: U% }! i; q9 a4 P (4) for <condition> to <condition> loop
) q2 y0 Q; K% @) Y <statement sequence1>;
) X1 V8 y2 E: [; E& Y ^ next;4 A" D, M2 W! w( J8 p; c
3中断语句
1 v9 a0 p/ V3 g# r* {; ~7 v waituntil <condition> prio <integer expression>;/ J* L, F0 Q8 `% @5 ~
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以上为常用的函数！9 z7 n" u4 f( y0 F" B# O5 w% j* ]
还有很多，如有需要我把资料发到你邮箱里 5 {2 v8 l! u8 r8 K
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