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发表于 2012-11-13 08:48:12
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1判断语句' p8 n f! r5 j* v9 y
if <condition> then8 }7 u2 q( j- X5 @# N
<statement sequence1>;
6 F( o3 e1 y8 G! H0 u" S( ~" W elseif <condition> then8 @7 R/ M/ Y1 z+ d5 M( r
<statement sequence2>;
I' U( t% ^$ U; C0 f else
: M" c* ~/ n$ c <statement sequence3>;6 ]- v0 ]! K) n5 ~/ Y1 ^) M# q+ v# K
end;( Y v1 \& a4 f! r
如果分支比较多，用：
6 S9 ~- ~. E% h* L4 [. Y" w9 w inspect <expression>
3 J8 Q n1 H! e* [" d/ z+ V/ j when <constant_list> then
5 H. t$ G9 u6 l9 R; Z2 j <statement sequence1>;% G$ b2 _9 Z( L: m$ U
when <constant_list> then
- O8 Q$ F8 u/ K3 ] <statement sequence2>;
+ K0 T( c6 W5 { ...- H9 G9 n/ d* w" A! s5 N6 `% f
else
4 N" X: i) m; N3 `. n <statement sequence3>;
5 `0 |, M" r6 c; i6 cend;
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4 @% S9 Z; |$ R8 e _2循环语句; S m D2 \ x/ R
(1) from <statement sequence1>
5 _1 H7 J5 W0 }( t! w0 I0 u, l; ] until <condition> loop# S$ c2 N: I, J1 ?3 Y
<statement sequence2>;
; y% R- G. B: z f0 c5 I$ w/ b. I end;" p3 O1 s9 ]) k$ {' E! Y% p
(2) while <condition> loop
0 {& w& D4 `/ ? <statement sequence1>;
% Z1 M$ ^* |9 Y end;
8 G! t5 y7 z9 G1 V (3) repeat 5 U' D$ ^2 \2 W* @! q
<statement sequence1>;5 ~$ y4 n1 ~2 S$ F, y, e z' ^! L
until <condition>;5 {3 D. e O6 F4 a% r
(4) for <condition> to <condition> loop
6 v- c7 D, P6 M7 T <statement sequence1>;& V6 h1 Q9 M9 q8 p) y' h0 x
next;2 v" K$ n2 m. R" `( e
3中断语句1 r0 U1 Q0 m4 S& w& K4 k
waituntil <condition> prio <integer expression>;/ b" p; k' L2 w! P! l: J/ h& f, a
# [" V" v5 @4 i% L$ q) c6 a& S6 n6 e0 g' Y. M! \
以上为常用的函数！
( ~) `) k5 R( x1 G' ]: ^! J还有很多，如有需要我把资料发到你邮箱里
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