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发表于 2012-11-13 08:48:12
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1判断语句7 w& b2 U. d/ B a. c7 ^
if <condition> then
- }8 f! m3 o/ j6 P/ ? X* F <statement sequence1>;+ |& P+ P" L/ W3 P& Y: a
elseif <condition> then
6 P' M5 S' S, V7 y. a, s" G <statement sequence2>;; |% w( w1 o/ }. B; I' c1 K
else
7 G4 I+ X2 |# A. K* |7 t4 { <statement sequence3>;
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如果分支比较多，用：
$ c/ ?9 u( @, W# J/ ^7 r/ v; I1 b( n inspect <expression>
# B/ t" l" J; ^; o% m0 K5 {7 ? when <constant_list> then
3 y9 y$ S! U3 ^7 ^# e) ` <statement sequence1>;
. y' V2 X/ w4 ~: v; O when <constant_list> then* ? R/ O. C! H, r% M+ ` V
<statement sequence2>;
]$ Z' v' ?9 ?! u; e! V& _8 c0 j ...
& H: y, ?" f0 W% A$ _4 [, {% U else
% u& f" Y; q4 p <statement sequence3>;1 Z. F- V8 p! E
end;
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8 r$ Z6 W3 k3 U) l. [2循环语句
9 j' ?* n0 R: @/ e+ ?+ s0 n (1) from <statement sequence1>
. Y$ e5 Z V, T0 m3 l% j until <condition> loop
8 v/ ^' R: Q) o% G <statement sequence2>;2 ]& T% h, J% d: ^, B
end;" Q R# L7 N, X# K* ~0 x9 z9 A
(2) while <condition> loop
0 T7 v- \2 B+ Z# m( i <statement sequence1>;! p& u4 i( f. `2 H4 b+ ~8 r. a. i
end;4 v' \) `, F2 j- N6 ^9 r
(3) repeat 6 n9 X% h9 m" z
<statement sequence1>;& T1 e F# y8 i0 `
until <condition>;2 C+ @6 p- t% F
(4) for <condition> to <condition> loop
7 L9 _% n1 ^4 M* ~) A* \ <statement sequence1>;
9 [- `8 \. z% J9 z5 I next;
6 `4 P& O3 V e/ W+ b# i3中断语句# R# h% B% C# x9 S& l+ [
waituntil <condition> prio <integer expression>;5 ^9 a/ e$ y& }9 L, Q- _2 C
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以上为常用的函数！
* Z( v$ N. g" p1 z还有很多，如有需要我把资料发到你邮箱里 ' h0 g0 w5 I6 ]: Y0 J( W; U
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