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发表于 2012-11-13 08:48:12
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1判断语句+ ]$ b7 a% x+ T1 s' b- U z. C" q
if <condition> then
$ ~9 R7 t( _/ O2 i y <statement sequence1>;
% T7 N# z9 Q7 C- E' d7 v l1 b/ d elseif <condition> then
- ~: X& {( o J0 B- p4 H <statement sequence2>;$ N% D! A0 B+ M5 R; _! W: |* F
else
2 Z% k: Z" s+ r0 Q+ w <statement sequence3>;- [$ s4 |. y( W* e [6 l! Y
end;: ?" b" F0 Y3 [) [9 c
如果分支比较多,用:0 z. l! A$ T) d& G& I% e
inspect <expression>
0 Q: B9 J B5 W2 N when <constant_list> then
" o+ s' Q t8 v' d <statement sequence1>;8 A; U& H9 K. o5 ]+ U: Z( z$ ~5 A
when <constant_list> then" f# k+ d/ O0 c: w* V& ~+ _& _# M0 w# c
<statement sequence2>;
- {$ `7 d0 L5 Y ...
- L3 @4 G8 L2 J# H* b else, P6 I* z( {( \4 E- n v
<statement sequence3>;
* V, b# ?# {% i/ }7 i! send;
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/ m4 M* P2 f, q7 z2循环语句
4 V E. m& @- e5 t. j (1) from <statement sequence1>
" S5 ]& J) S/ T) ] until <condition> loop1 M5 A2 E8 G6 H8 G- e! g: I9 ^. s' b
<statement sequence2>;* Z% W3 C3 i, F1 u5 |% o
end;
, U% ^6 d7 r& y (2) while <condition> loop0 s, N8 |; }; g$ C3 t
<statement sequence1>;
8 r' P, ^8 n! A2 t end;! w( a( a. C, I
(3) repeat ; U1 Y4 C4 `4 j8 F0 Y( g
<statement sequence1>;
3 M1 L* [; }' {0 |) a$ ^ until <condition>;
5 {$ Y# K! H. ]9 m, |* @3 o# | (4) for <condition> to <condition> loop- G# p8 E( o# N% ^. K" Q: i
<statement sequence1>;$ R: K% G* c0 D( f* n
next;
$ U; Y6 m0 f- C* q* i9 R- ^; @0 T3中断语句
/ ^9 c4 D( q% I% P t2 R! m waituntil <condition> prio <integer expression>;' _" g2 U! ?- n% n e
- N0 }. l7 `* ^: h, }7 h. Q
+ d5 h1 w8 q, J' s0 p: |/ m) d以上为常用的函数!
, R* u& o; o) n还有很多,如有需要我把资料发到你邮箱里
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