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发表于 2012-11-13 08:48:12
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1判断语句 C1 V* Y H& x! Y1 \& G( ?
if <condition> then
$ g# w4 B, j' E0 [ <statement sequence1>;6 T! ^/ O+ P' R7 f1 s" J: G8 S
elseif <condition> then/ c: ]9 V9 C9 o' R( x% j
<statement sequence2>;. M9 p1 C5 `# v& G! U3 R) ?
else
! p6 L5 H5 k! i: x( n <statement sequence3>;
0 g8 C1 y5 M8 k. Q end;
; @ W/ d" F" |9 S3 o3 ~9 T如果分支比较多，用：
* q+ r4 I4 o& B( b" w$ Q0 D2 p inspect <expression>
) F& P3 J& R: r when <constant_list> then
. q, p% {6 o! J1 \6 X <statement sequence1>;3 j7 `( J7 @1 e; O
when <constant_list> then" K4 N. P% r% ]& F2 _* [
<statement sequence2>;
0 O7 [0 y/ h* q y ...
% t0 r; d9 u- S, Y else
0 D+ \, g1 I! s1 R% b) u/ z <statement sequence3>;
3 L# b2 `8 G. v3 J* |* Dend;
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2循环语句# T( k% g. ]+ c8 C
(1) from <statement sequence1>$ _1 V9 _ s. T" t) F$ G8 j7 Q* P
until <condition> loop
$ }. {( U" A' ]) p8 I <statement sequence2>;' d, y5 ^3 _ R
end;0 C9 `4 j' t# U6 |- f
(2) while <condition> loop, J! W) G& G, Z. n1 M; Y/ h! a5 l4 S
<statement sequence1>;
; X5 i- c4 A' q8 n! n8 ^0 g9 B end;* L" w5 v4 L$ K; w6 @, m
(3) repeat 3 D: n2 |/ ^. [, B/ W
<statement sequence1>;0 |8 g: B0 K/ T. N! S
until <condition>;6 o5 z9 [% h. s5 a' o
(4) for <condition> to <condition> loop) ]0 \9 B6 D3 H: ^- O" V! I0 x/ y
<statement sequence1>;0 N: w# `( S4 w) W- O
next;
/ B& _7 }% d! D3 z' ?7 n$ K, A0 E3中断语句4 e7 f2 v8 W) d' a1 A% ~9 z6 c
waituntil <condition> prio <integer expression>;
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Q' @, y$ t8 G2 E4 s以上为常用的函数！: H3 Z# {! Q! M! `: l
还有很多，如有需要我把资料发到你邮箱里 5 j0 h8 o- z( }) a6 Y
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