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发表于 2012-11-13 08:48:12
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1判断语句4 Z) V% V" v( F& z. i2 j
if <condition> then
* W1 A1 a% F+ \0 M0 J9 r7 w <statement sequence1>;
2 d- b$ l8 z2 H elseif <condition> then! | w3 Z( w' P& `- ~3 S6 n
<statement sequence2>;
9 N$ E$ [2 p' ` else
3 s: i- N4 A" k. f/ f <statement sequence3>;
/ \* j- \# |2 V; F% ~3 f end;
% a& o8 `5 j G* F5 Y$ O& P如果分支比较多，用：
* A& J* q7 g0 a# W inspect <expression>
. [' p& V4 q/ @: {% d9 s when <constant_list> then
/ A9 f. P6 F9 w0 s2 n7 @. e <statement sequence1>;, o4 _9 Z5 }+ m# q* M1 u" e& G
when <constant_list> then; V7 m$ K2 J5 Z3 a6 p
<statement sequence2>;, b3 t/ [% g7 [, p- B
...$ S3 y9 h4 P3 t* r! U$ g8 U
else) q! w1 M' q$ d5 J
<statement sequence3>;+ O3 z, {8 |* S% O2 B
end;
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; t" r9 ?3 L7 m( k! Y" t1 h2循环语句
$ R0 ]3 |# i% R( \- Q& V7 T, _ (1) from <statement sequence1>: h6 t' x+ D6 N7 p
until <condition> loop
6 O8 f2 q3 y, \/ V; x <statement sequence2>;( H: ~' w4 O1 w# G$ A
end;/ |; n7 U4 h! g: `! M. b2 t, u
(2) while <condition> loop' C' k) C9 n3 K! \6 a# @
<statement sequence1>;
3 ~( r# I9 X5 z7 q/ i end;
' Z1 H7 }5 T" | (3) repeat
) ]% D% Z L2 F. G$ U$ B+ `( ] <statement sequence1>;+ d( w2 x" E3 _2 {5 o
until <condition>;3 S' X& u, U0 I5 ~
(4) for <condition> to <condition> loop
; A* B$ L" ~9 g4 b <statement sequence1>;
5 `" _, L4 `( ^. d+ |5 M next;% s2 ^' T. F! b$ v3 h, _% n
3中断语句4 j" E, R7 I b
waituntil <condition> prio <integer expression>;
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以上为常用的函数！$ h( M( q( ?, r" ]/ S. C. e
还有很多，如有需要我把资料发到你邮箱里 + ]) j, Y8 C; u* K& H
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