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发表于 2012-11-13 08:48:12
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1判断语句
! l& ?4 W3 d j" u5 [% T- p! ? if <condition> then# z/ g( g# U9 ]8 d% u8 }) S, a
<statement sequence1>;4 n; P. ~6 N5 b& X% A1 Y V* i% W
elseif <condition> then- K |( M* a# O; V& _
<statement sequence2>;' |. z7 x* ?2 m: c
else
. Y* \2 L, N: _% _ <statement sequence3>;; a/ G, _# M% Y* k; W/ R
end;, Q) \. k) S( }1 J( x2 _
如果分支比较多，用：
+ B" J# v; F7 b) Y inspect <expression>' p* q/ K2 `4 B
when <constant_list> then
6 P5 U' A7 g3 J3 X9 A( V <statement sequence1>;9 `3 I# i) O. b# c- I+ h9 K
when <constant_list> then
7 L1 V0 x; I5 i1 L. N <statement sequence2>;
9 F" u0 ~1 ], n3 ~) O2 I ...
( h' Z; h/ L0 j$ S else, Z7 m; `" ^% a5 T5 U$ |6 `+ y
<statement sequence3>;
l* i- a; N6 |# y0 s& nend;: m# t+ T. B% f& u
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2循环语句3 C) F6 n1 o! o0 {8 V7 Y
(1) from <statement sequence1>
" U' n6 S* v0 C( o2 G1 L until <condition> loop' S& u8 _6 p: [, F8 |
<statement sequence2>;- j& o6 y/ |- d% u* w8 u
end;
9 y5 e) d( t/ l; O- | (2) while <condition> loop
' ^; U% H$ s% @ <statement sequence1>;
7 f/ V' }9 j4 M end;
; _9 e- k) R/ I' ] (3) repeat # R9 `1 ?/ G3 v2 s# v
<statement sequence1>;+ [: Z0 |. t1 ~$ f( p, O5 C! r
until <condition>;, o- ?9 f5 W9 ?0 m( U8 @
(4) for <condition> to <condition> loop3 e! b5 g! S) Y' q+ X9 Y/ \
<statement sequence1>;
# I. t: F3 ^- q2 A; s, Y3 V next;2 g( z9 Q$ @( ~% N) F- Z. Z
3中断语句. O" n7 o3 G( s0 V( p9 ]
waituntil <condition> prio <integer expression>;- ~2 d/ h: b: x
2 p* e) Y6 ]8 a) R! [2 Z" _+ I
, P7 q( y. I& U7 n) I1 U1 W5 m# i以上为常用的函数！1 L/ l. x0 L* G# b/ F, p: y! t
还有很多，如有需要我把资料发到你邮箱里
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