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发表于 2012-11-13 08:48:12
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1判断语句0 t7 X9 b, L0 g
if <condition> then1 R9 H1 t. x* B' a
<statement sequence1>;
% O; d9 |& ^% l0 K elseif <condition> then
6 }6 S* {5 [& ^. O1 K8 S <statement sequence2>;5 y. E& X% @8 ?% z# A/ ^& s! z+ M
else 6 H' @2 l6 Z. v( k# B' b- Q
<statement sequence3>;6 t1 f0 E; Y, a
end;2 ?2 N: \- j- C: T* C& o' v
如果分支比较多，用：3 E( r3 |5 ~2 B9 C2 c+ o
inspect <expression>' g. m) g, Q: c$ ^: p% f$ ~
when <constant_list> then f$ @, t) A$ @% z. Q. x" }% {
<statement sequence1>;
5 a3 N r5 {( D+ h when <constant_list> then
, i6 b: @6 f4 T. B <statement sequence2>;
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else* R) E# e% t5 n! Z) q( _5 r
<statement sequence3>;' b4 Z% ~8 \ s5 m$ t# _0 Z# J( a/ e
end;
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2循环语句4 z+ Z8 C3 \* C6 M2 V4 P* V
(1) from <statement sequence1>
+ M1 R( _+ S4 y' U, Q' H! P p. p5 l% Q until <condition> loop
+ p& c8 f( r: g) l; E3 ]. i <statement sequence2>;
4 d8 t+ o9 u9 o- ^ end;
! U4 R+ C. v, M# S! r& m m (2) while <condition> loop
3 P* I( k2 b% n) Z1 R <statement sequence1>;
5 E: Y; W8 h& \5 J' W* { end;
( o+ z8 j! O3 O2 F5 B* l+ ^ (3) repeat ! ^. v& o' i! a, O* U$ }
<statement sequence1>;4 q# q* J) H& S4 o6 B0 j$ C0 x
until <condition>;+ T' }! i5 f- N! l
(4) for <condition> to <condition> loop
: B8 E4 I- ]0 s <statement sequence1>;* {& f8 `3 z, L3 \* j8 u6 E
next;9 d1 U6 z+ U: o; _, F1 e" K3 }
3中断语句
3 c J6 Y/ W+ k0 A waituntil <condition> prio <integer expression>;
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以上为常用的函数！7 n+ s0 o" K& |4 L& H/ ?
还有很多，如有需要我把资料发到你邮箱里
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