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发表于 2012-11-13 08:48:12
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1判断语句' O- J( H$ a% l4 s
if <condition> then
P2 @% g! c/ | ^$ G6 ? <statement sequence1>;
7 L$ q/ l9 R8 t+ X5 b elseif <condition> then/ A: z* Q/ [$ y0 A: J. ]+ A/ G
<statement sequence2>;
: V2 Z" D( S, w* ?* M ] else
- e' ?5 m& _3 {* }$ h" N$ y, L$ s <statement sequence3>;+ B' C* ? `/ c3 |
end;
% q: Z9 c$ ~% ?, Q如果分支比较多，用：7 y1 }5 \0 s1 d6 O: U% X
inspect <expression>
* H, N1 s4 l1 a/ | when <constant_list> then# u) ^/ m5 ] w! J9 V
<statement sequence1>;
a- [# D# E# `$ b, u1 H w when <constant_list> then/ q; ~/ u8 b' O% R3 Z5 a/ [' y
<statement sequence2>;
5 z# C% ^% c6 J: k4 l# f7 k ...
- G8 ~9 N& e$ l" R2 Z& H else
" y) Z; O( q3 y <statement sequence3>;
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4 l! z2 _! ?/ Q6 ]2 k: W3 s2循环语句( b" ?$ z, A1 z x" @" P
(1) from <statement sequence1>
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<statement sequence2>;
) z1 [- A6 h6 \+ d end;$ \, q: I) H8 [) N! t( Q
(2) while <condition> loop
+ m8 a6 [4 @$ r4 \ <statement sequence1>;
6 D5 K! e: y; [6 Z2 n4 A end;, Z' i8 L8 Z$ ]( D5 m
(3) repeat
4 e6 v$ \) P8 U, S <statement sequence1>;. |0 v& [' C- c+ j I& g P: q
until <condition>;- e* S8 u. {0 f* u: R( u0 ~
(4) for <condition> to <condition> loop0 C' b$ o( g. X9 O
<statement sequence1>;
3 j' W5 B! @; U& Y8 \ next;0 N C; K! s* q" d: i. U" ~
3中断语句/ E7 s1 T) ^5 o9 P1 X2 `
waituntil <condition> prio <integer expression>;4 y& o. V, s5 N% Y
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以上为常用的函数！8 u2 J9 E* U# o& B0 h& Q5 ?% ^
还有很多，如有需要我把资料发到你邮箱里 8 ` t% b1 X7 H
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