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发表于 2012-11-13 08:48:12
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1判断语句# \; D' E3 [; D5 U5 v6 V" A/ e
if <condition> then
. N7 b. M4 ^# n6 e <statement sequence1>;
% g0 G3 }* d5 `: z- D elseif <condition> then- j, @7 L" u. u6 V/ M! B& v
<statement sequence2>;
6 L, F3 a: c5 n: o0 R: ~ else
$ I3 }6 `$ Z4 m7 o <statement sequence3>;6 ^+ f" G+ D; a
end;
' X f9 o. \- m: x5 x如果分支比较多，用：
x$ J1 A8 n" `. @ inspect <expression>! U9 _2 c4 |7 ^ o
when <constant_list> then
: a& r1 r- ]4 g, k4 X/ L, w# f <statement sequence1>;: b3 B: }% j( r6 h% Q! M5 F
when <constant_list> then
/ y. h4 p; O$ @) J" H+ ]- d* E* G <statement sequence2>;7 h' |! k) [) G$ ]2 ~8 Y$ f ]
...
: V/ `( h6 C6 a# f6 E! y$ ~* O; |8 ` else
5 o- `2 {4 p. _& Q$ C' w4 w3 X9 f <statement sequence3>;
# L0 v# I# _% ?: ?5 ]; E; X) xend;
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2循环语句1 m& p" R; q8 _, @0 K8 _
(1) from <statement sequence1>8 C& ?% Z- Y3 I1 j# @
until <condition> loop
' I3 d, X. e* n4 ~! z' y <statement sequence2>;
( ^2 b; |, o! b2 I3 A/ I end;
" X( q$ Z2 ^/ [& G3 m (2) while <condition> loop7 }: h2 y+ ]0 y& g. A( ~
<statement sequence1>;
, f" M: q7 R# j* @ end;
, V; T3 h7 b( V( c. A6 @ (3) repeat
6 j% r% ?6 B# }, ?$ g6 J <statement sequence1>;
* C6 l4 @* P: B% `, i until <condition>;
4 U5 I) \$ ?; K, J (4) for <condition> to <condition> loop6 t) a! {% E5 d k" }& ^" F
<statement sequence1>;$ p9 F( i! v) ?! s8 w0 D
next;+ _1 e& ~7 {5 M9 i. d( O0 x
3中断语句7 k2 U$ r1 ?7 _
waituntil <condition> prio <integer expression>;
Y' Q% E" _/ R6 O4 c5 {+ U" E; z
# h/ S$ j4 L+ o; a9 ~( S以上为常用的函数！
! m" D6 l3 q2 ?还有很多，如有需要我把资料发到你邮箱里 z. O( c( V' k. O/ [. ~: v
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