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发表于 2012-11-13 08:48:12
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1判断语句
& u q; h% m/ { if <condition> then1 O0 f/ R( E& _
<statement sequence1>;
; t" T! ~3 N. y/ V8 u1 n elseif <condition> then
8 U# O) u4 q- j5 g" d8 R <statement sequence2>;
# x7 z/ @# j2 [1 x' l/ ~+ T' y else
! T8 K z- j3 a5 ] <statement sequence3>;
+ P% x4 N* ~' m7 c* Q end;
* \' I0 K- Z1 T5 f如果分支比较多，用：$ I% y2 o$ @: Y- a9 r. ?2 r
inspect <expression>
1 n% j' H; h9 y! N5 o# S when <constant_list> then
" V2 H v% R( E" @# ]! T9 V <statement sequence1>;9 l w# I6 P0 W+ }
when <constant_list> then, ~6 O" j+ U" r: c4 ?- J6 q6 \
<statement sequence2>; `: s1 g, j6 }% A: b4 [
...
9 q/ K( n+ u' g- y else
( P. U+ g% V$ Y; v <statement sequence3>;4 s! X, Z; y& `, `! `9 i/ C- O
end;7 B" A1 _9 D$ q* }8 \4 w! [
/ \7 s8 v [9 N; d" C# ?8 Q
2循环语句, t- R9 s0 w% d: L$ I
(1) from <statement sequence1>& w) b- N w) _6 b+ v1 [ g
until <condition> loop- G. R' m4 ?1 _$ e2 Q+ E" x
<statement sequence2>;
& F( c. A: w* x4 U end;
) {, y$ t) n7 r. o/ m; d, G (2) while <condition> loop* Z1 t5 H8 y2 ]2 {! ~) a
<statement sequence1>;0 ~9 u: `" J E
end;
. v( `% J# C6 o4 V* ~3 C (3) repeat
7 A3 e& O3 P2 |6 W' o7 Y <statement sequence1>;
- M( l. t9 Z, c: L8 P, x until <condition>;. n# l$ f }1 m! |3 E0 {$ {
(4) for <condition> to <condition> loop
+ Y; i ]1 J: R; ]' k3 ] U <statement sequence1>;5 O$ E5 ^/ J: G
next;7 ~4 R0 t4 L0 G* J% v1 a
3中断语句0 I. k! F( X1 D B* Y6 G
waituntil <condition> prio <integer expression>;
, m v3 l( P$ l) n
( i3 I/ [) l' y4 r/ i5 E, l
# w4 a% h/ ]* r以上为常用的函数！
% A E/ _0 Q J9 s" L/ O* N还有很多，如有需要我把资料发到你邮箱里 3 w( B* w9 T/ G+ F: O: [, a
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+ t0 [1 m4 k& m+ }
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