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发表于 2012-11-13 08:48:12
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1判断语句, W# u- E2 _ [
if <condition> then
( p g/ q1 p0 T1 F A. z <statement sequence1>;9 @" P8 ?% d( {4 R& j8 G! h/ v
elseif <condition> then
* V" m, }$ }* ?% P s& v5 O <statement sequence2>;
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<statement sequence3>;
. Y* K% j9 b% c& O' m end;
9 v) u7 L( ]0 h) B, P" l如果分支比较多，用：
1 g' u* S5 T# M& W: A inspect <expression>4 C$ }7 L8 H3 \* C/ i
when <constant_list> then. v# M' ]. `1 F- W& @' S
<statement sequence1>;
5 @5 I8 z$ H% Y when <constant_list> then
/ ?( u* ~# }9 E4 {0 J <statement sequence2>;2 l4 N/ ^, t+ [9 V4 F" s; {0 ?
...
5 ^4 U- v; y* q% C* c7 c, g else
l. ]/ W7 C3 t) r4 C <statement sequence3>; A4 L$ Y# `1 |6 N6 c/ a
end;
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9 Z {; v6 H# a: U" Z2循环语句4 g% N. c+ B# T( J3 e3 E2 P5 S4 d ~1 G
(1) from <statement sequence1>
/ t6 f' F% ?0 m2 N- I until <condition> loop
' ~ j' T; Y; E/ U$ F0 N <statement sequence2>;0 v8 o/ ?* T% Y. g% f- q( N% L0 O7 ?
end;/ F9 K/ @- A& c9 s; P
(2) while <condition> loop
% _' k7 M2 N1 w, ?/ D <statement sequence1>;
' L2 p/ F& Z' \* ` end;2 i2 d9 F* K) N3 G3 y
(3) repeat / k6 b3 `- L* |8 f9 R' |0 T
<statement sequence1>;: z! F& R, C6 V, |
until <condition>;
3 B [2 o3 Q- k4 Y0 {- T (4) for <condition> to <condition> loop
* ~ E3 [- @0 h3 Z8 U! X$ X <statement sequence1>; ?% t. U7 l5 o- e! s8 I9 t" b
next;
& q2 n0 x }. O+ w( P _3中断语句: L& P4 d$ a; M. o
waituntil <condition> prio <integer expression>;
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$ L; f6 }! l2 l" I- v" i* e! T" N以上为常用的函数！
7 J0 R; L9 G3 z& w1 W还有很多，如有需要我把资料发到你邮箱里
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