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发表于 2012-11-13 08:48:12
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1判断语句: `1 q7 Y) V! {6 ^! H
if <condition> then
^6 L- l* Y6 d6 J3 V+ ~# B! J <statement sequence1>;
# s- z% v% r: h' c elseif <condition> then
& }- L3 S+ P: t: g* K" b% ~$ u <statement sequence2>;
: @6 X- o1 ]% b2 i& }& L$ Y7 U! ~+ r; L else ~" p q( g& y! O% |8 T
<statement sequence3>;
4 U; Y: Z N# O- \' B6 T end;
( I$ s9 g5 S$ P l如果分支比较多，用：! ~8 |( m- w$ l4 a0 w
inspect <expression>
2 t/ y2 v. V% x# @ E. B when <constant_list> then# Y; s3 T6 c1 V! k5 P8 m$ f
<statement sequence1>;" w& A) x' w/ p3 z; [& r
when <constant_list> then/ c* t7 j/ \1 ~: Q/ Q* u% B9 S
<statement sequence2>;, b$ F( b; Y% I3 b6 `1 G
...7 z b2 ?% \+ K( n# d, F1 o
else7 q F8 _; w1 [/ [, t$ o& L2 i+ y
<statement sequence3>;
% m" M8 k1 w7 c0 k' Yend;, p h# p; \1 W! L3 h; n; i: X" Y) H
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2循环语句5 B. c. m* ]5 Y/ U
(1) from <statement sequence1>
z" A. z0 _( R+ |2 D1 | until <condition> loop' v9 h' _! e) |; a6 v
<statement sequence2>;
8 z: C1 V$ B" k9 v end;( ]; @$ Y' b9 \3 s6 l W3 g
(2) while <condition> loop0 R2 P u) o) |( R# c+ V$ C) f. t
<statement sequence1>;
% M! i' X5 T- r end;; n$ c8 q* E+ ?% b# C, E1 Z2 s
(3) repeat 3 v( w) \4 O2 D6 p& s9 d' S
<statement sequence1>;" x3 Z7 ~9 l) m( u7 e$ [" y R
until <condition>;9 e `: R1 S. s& J$ }
(4) for <condition> to <condition> loop
; H# b/ X$ A# o9 ~- Z; E <statement sequence1>;
0 X! |% x' G/ C next;
: X8 N* B5 L- }' M1 Y3中断语句
) O2 l( j7 M+ d% h waituntil <condition> prio <integer expression>;2 q" w' M# Q! g# N
8 ]% X6 r, g& I0 e; D9 X% q. K f# o7 ^7 }9 A
以上为常用的函数！
: Q% ~' _- G$ S+ K, G& E还有很多，如有需要我把资料发到你邮箱里
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