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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
/ O5 _: ?8 C. \# V* s6 D3 y% c if <condition> then
/ w5 A6 V, G9 b L) H3 o5 i <statement sequence1>;* V& I. q3 j- Q: H/ `$ u* Y
elseif <condition> then- O4 R4 l, b l% z$ W# P; U) N
<statement sequence2>;
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<statement sequence3>;" N. B& q5 |6 |2 T3 y. E
end;: j+ t( c0 A* V H4 I( y/ }- e
如果分支比较多，用：
0 s: k( J1 n: S+ c/ G& ] inspect <expression>7 _9 I& ~. C# i6 z0 M% Q; R1 c+ ^
when <constant_list> then
+ ~- H, A. Y4 R# I; j; G( r <statement sequence1>;
1 R* Y: i+ D4 g5 ~9 d8 C when <constant_list> then0 e8 X* Q- p' {# A
<statement sequence2>;+ s1 o; K- E4 a
...
7 N/ v4 C V$ Y5 o Z- i" A else
& O- f4 f7 L7 y: M7 x9 D7 y, p <statement sequence3>;
" ~8 A/ }5 y8 _# n6 `/ Oend;
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2循环语句
0 e U. s( v0 u( n (1) from <statement sequence1>
9 D$ @( C, f7 B. l4 l until <condition> loop
) c- f4 S2 `- p! u <statement sequence2>;% ?" I* J) {) _: ]9 ?' R: d
end;; K, |" j7 S8 U8 @2 G
(2) while <condition> loop$ S! \. E2 \& T! m; A
<statement sequence1>;
+ C0 A( f3 o1 q. M7 C. l/ n end;6 q1 ?7 B1 b2 S7 Q. o. a$ y
(3) repeat J3 g" i' S. [
<statement sequence1>;/ E1 }! t: Z/ i0 [* p9 D$ m: R' p
until <condition>;
6 J. |4 ]( m- S& m: E (4) for <condition> to <condition> loop
% @, }7 y' {* k0 f6 K$ x2 e$ Y2 ` <statement sequence1>;7 _5 V. ]: k7 W& n8 ^, m1 P
next;
z2 h! D) S+ f! L3中断语句5 m: c4 _) C$ C# @, {/ m4 v
waituntil <condition> prio <integer expression>;
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5 y3 ?$ ~7 R/ }; T- n1 E& b# a& H( E/ F
以上为常用的函数！
5 `- A# X, a& m& ]还有很多，如有需要我把资料发到你邮箱里 ' {5 ^2 ]$ |' f3 `9 _& p/ v
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