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发表于 2012-11-13 08:48:12
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1判断语句/ }, a A4 U2 ^. O. b
if <condition> then N: Z5 L& D, y. J9 I9 T
<statement sequence1>;
: y% m+ @, i0 U, P elseif <condition> then) H$ X3 k7 H" G
<statement sequence2>;
1 N6 a( z" t/ S7 g# q else
+ j- u: K& {" a; {- h* z0 a% m1 _ <statement sequence3>;* [2 s4 r3 X$ r! ^" J0 \0 Q
end;
3 b0 A" S D$ e7 M; Q0 l" v如果分支比较多，用：
) Q; f$ x2 a @8 w4 n* [ inspect <expression>3 n7 j' H: W# q% k0 K8 x
when <constant_list> then
6 w9 S7 `& C, i5 v+ |, n <statement sequence1>;
- K# J: B; S( G/ e% X3 @" `5 L when <constant_list> then
) U l; h' X4 i" ?" B( v5 C: \" d <statement sequence2>;
% W5 g5 V, ^1 d0 x3 D! D ...
! n9 }; x3 Q0 J1 `8 H else- e* |! E7 m6 M
<statement sequence3>;2 g- B- b Q9 D9 f
end;" B( k6 W5 M2 _4 A( E
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2循环语句
, F `; C6 _3 R% e+ f5 _, u/ I (1) from <statement sequence1># X6 y" K5 K% W6 t8 l2 E
until <condition> loop- \$ r% e" c g p+ R
<statement sequence2>;
. T& p6 I p2 S end;
; n/ z/ \( }4 D (2) while <condition> loop
; E7 W0 G& {7 C7 k5 b9 T( E; j <statement sequence1>;
3 [5 c& Y) U2 t/ `, ] end;" j! g1 c5 A: v- ^- p( C
(3) repeat $ n+ v3 m3 O8 W7 a3 X8 X0 ]
<statement sequence1>;
; V8 n! c1 {/ L& q* X# G until <condition>;
( s8 v7 v$ L2 z* k; K (4) for <condition> to <condition> loop
4 E0 B; o! {$ ~5 T' w: V <statement sequence1>;7 m" V! a, o H w! j/ }
next;
8 k$ d$ w/ t+ P7 @3 F0 N* l2 k3中断语句
) p n9 N+ s6 h. ` waituntil <condition> prio <integer expression>;6 g; g. r. N" l' J
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以上为常用的函数！3 o' ` |4 Q6 p; [
还有很多，如有需要我把资料发到你邮箱里
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