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发表于 2012-11-13 08:48:12
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1判断语句; m I: W" T" u# _+ O/ a
if <condition> then
- I4 R$ U* R, }5 A* G <statement sequence1>;; {8 X3 V9 r# g* H, f9 M3 w
elseif <condition> then
) B8 W8 |# K) [. s# `1 I <statement sequence2>;
0 N$ o2 J. f) S; R, o else
7 J6 a$ ?9 Y& E <statement sequence3>;
3 b$ r$ t9 {7 |' H/ N. Y; p end;- Y* `0 Q/ ^9 p+ [; L( `
如果分支比较多，用：4 Z( G" M2 f N9 s
inspect <expression>4 g! h T. @, J) o/ ]+ C2 m V, U! v
when <constant_list> then
' q3 `/ L3 k1 m/ F( b0 G: v <statement sequence1>;
, J( k+ [- p3 d g2 N$ j when <constant_list> then
2 D( n% _# Z0 h' e <statement sequence2>;4 e% z3 \( }& z; C n
...
' |. w- u# |( r# _( V/ B, ^1 E else
' A, d* I# d: _; |$ S, U3 N <statement sequence3>;
. p' A7 \/ X( {, p3 ~7 pend; \ J8 o; t/ k5 B
3 d+ y8 `1 f* w+ w6 G( N$ g. H* A2循环语句
- g1 j3 O) R7 o% O$ ? (1) from <statement sequence1>; A- z7 t. t$ }* `" X0 ~
until <condition> loop. a# F3 \& ~1 s! L) r) v
<statement sequence2>;
) \4 ?' R! E Y- s end;6 h( v7 G9 j$ Z0 X
(2) while <condition> loop5 f/ f7 n/ n1 h' a7 N
<statement sequence1>;
. x, P/ k& E% G8 b* k% S end;
3 @6 h% E; s L (3) repeat
4 H7 v6 j- F% R3 k) { <statement sequence1>;1 v1 K: [1 O8 w- A, H2 X0 g
until <condition>;
) A4 a! b, I3 H- e (4) for <condition> to <condition> loop* A' W. d/ G) m# w$ W3 v
<statement sequence1>;7 t8 q& d2 p& f; g: [7 i+ a5 K
next;* |" A; C7 K( ?0 g; h) s! q
3中断语句
& y! l0 |: H' ^ waituntil <condition> prio <integer expression>;
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以上为常用的函数！
; N8 p4 Y c! l2 _$ l还有很多，如有需要我把资料发到你邮箱里
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