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发表于 2012-11-13 08:48:12
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1判断语句
6 }4 F; E1 N& ^0 g if <condition> then
* O' t2 s0 r# _* |+ o <statement sequence1>;
* ]1 f, ^. D! e: O% u' t' o2 u elseif <condition> then
1 R0 N9 g, v. w4 l' n- S7 | <statement sequence2>;
9 l% B! L/ c2 u4 J, f8 I! V5 Z' w& K else
. m% B; ^2 |% S <statement sequence3>;6 J1 F9 v' O" R6 i8 U
end;
& w% q2 ~! w9 b0 o, \如果分支比较多，用：
: ?, g/ f: v+ F7 f) G. T inspect <expression>0 E4 q6 D- L' i% \& |, G: @/ ~. r4 r
when <constant_list> then
& ?7 @6 ~/ A' E* D" f! ^" R <statement sequence1>;+ E8 L9 [% v% {! b
when <constant_list> then& C& J* x; O0 U j! W/ ?: ^
<statement sequence2>;. v6 @/ ^7 s/ H" F
...
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<statement sequence3>;' F7 ]2 A( x( R" d1 G% Y) v
end;
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& B3 K( G0 I1 \2 y2循环语句- |# u) M9 N# ^- j9 i
(1) from <statement sequence1>
( H8 T. Q' u. x J* {9 T until <condition> loop
( ~+ R+ C1 d y$ A8 `! A/ I9 s <statement sequence2>;
+ u4 i0 d9 s# S6 L6 R5 E/ h end;
$ v, e1 ]2 ?0 e5 h2 j! g (2) while <condition> loop+ J& o2 P& I" p
<statement sequence1>;1 z5 P- O0 h# L& Y3 @% U1 W
end;
7 E# Z7 p2 t- L8 O2 B8 h (3) repeat
% \) n2 x& ~( v$ `6 p <statement sequence1>;5 C( `+ r7 S+ y
until <condition>;2 g X* f5 M7 I
(4) for <condition> to <condition> loop
& z4 X2 I) j4 k1 D/ r; b <statement sequence1>;" C; U" Z+ T# d: L
next;
. I9 [/ c% |1 N" r3中断语句
& Z! \5 } t2 z3 }3 b waituntil <condition> prio <integer expression>;6 W6 ]/ N) G9 Q1 M) F2 A. E
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以上为常用的函数！
; |. y# z( f( g; e$ I还有很多，如有需要我把资料发到你邮箱里
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