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发表于 2012-11-13 08:48:12
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1判断语句; J9 s1 L. o5 W" a2 E2 N8 K
if <condition> then
( s0 K8 [+ D; K: H" V5 u7 R& [. r <statement sequence1>;
4 u, ]7 D' K4 R! Z% [ elseif <condition> then
# p8 @/ \: Y- ^9 q% ]( [ <statement sequence2>;4 l# m$ w9 D( J) w' X
else
+ @& z$ K. t7 m, {6 o; t <statement sequence3>;
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如果分支比较多，用： d% f& C1 V& Q9 @+ B% d7 G3 b; m) g" s! D
inspect <expression>
5 N* E0 }. V& Q+ |9 x4 A( a5 q when <constant_list> then( d7 q7 k; T5 a- n' m4 }4 S
<statement sequence1>;; }2 J; _( R, e. G; D* h
when <constant_list> then: l9 m7 g' J( o
<statement sequence2>;
! j2 O, e. K5 i0 A ...
2 j3 j% e( U& L& P else
- O; i3 ?: U0 c) z7 k <statement sequence3>;, P' E+ _- |" M- R- |- D) e
end;2 l8 i( i$ h' C# \
* T% Q9 `: l+ W/ @2循环语句
% B& R) d5 N1 U* v' c! l& I1 o6 { (1) from <statement sequence1>$ j+ a; y9 L% G3 e* J; }
until <condition> loop# }+ ]) D# i# \: N0 r) r
<statement sequence2>;0 b% b2 C$ {4 l7 C1 q0 k/ {) u7 p. |
end;
- a) x, q% T5 Z8 ?5 V- O: D6 G, ~ (2) while <condition> loop A9 G0 ?! W( ~- B
<statement sequence1>;; ?2 L A. m7 s' @4 _
end; a. E% \* w& Q _ ^' c( L* x' Q
(3) repeat ' O5 b) c5 S& Z0 D$ z
<statement sequence1>;
+ X8 Y- ~6 w( P' Z until <condition>;! F5 s2 W0 x& `1 f4 a" C/ u7 p" ~* P
(4) for <condition> to <condition> loop
% Z# ~% t( E u$ z) n <statement sequence1>;; q4 k" b8 m" v6 A9 |- D$ a! `4 a
next;7 W6 V$ N# W2 O' W/ C6 [
3中断语句
( E* p3 ^" E! P+ e waituntil <condition> prio <integer expression>;8 X: ]9 ~+ S- k, k6 v
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以上为常用的函数！
, F, F( j$ w' R" U: p还有很多，如有需要我把资料发到你邮箱里
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