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发表于 2012-11-13 08:48:12
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1判断语句8 l+ B) l t5 ?4 a% G5 ?7 s
if <condition> then
8 v D$ u) }# b0 M <statement sequence1>;
" b, v* U/ W! g1 U elseif <condition> then! F6 L9 `4 [( X. ~ b
<statement sequence2>;
, f3 }& C2 N: c2 m/ U$ P else 2 O- r/ ~1 [* o* _9 [0 k e7 B
<statement sequence3>;
1 K8 K1 i& ^* ?; F0 P end;
. q# _( |2 g) `# P. l& [) f如果分支比较多，用：$ e4 |) Z' g5 G1 T
inspect <expression>& V: N% _- B l f# e0 Q0 ~; s
when <constant_list> then
# q% t1 p/ h2 C0 i8 U9 V <statement sequence1>;/ @% F: u* u3 V% i- q" z
when <constant_list> then3 b: y" R( ]& i O: D5 K+ N K
<statement sequence2>;" O6 N+ f3 Q& S" Z" C: x
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else
$ T$ I5 J% @, f' \7 M+ {2 i <statement sequence3>;/ v$ b" [8 Y$ o6 s0 g; h& p
end;
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9 x; {1 u- u2 X) ?' b2循环语句
T7 Y [+ r$ C4 n+ g (1) from <statement sequence1>
. S- e6 u4 ~' ~ until <condition> loop
6 o6 I, F1 I% q+ N+ r' b+ M <statement sequence2>;
y q8 p& F% Y- z) b end;
3 f' k( E( G5 `3 W (2) while <condition> loop$ m- q: T" g) A" o
<statement sequence1>;& f5 V& ?: x/ q8 J. r& U
end;
1 p6 ]: g6 ~ u8 b& A3 M (3) repeat
4 b# B$ F" b- T0 l <statement sequence1>; \$ h1 S4 C* b. A9 b
until <condition>;
* | h2 e: t$ B Y (4) for <condition> to <condition> loop; Y" U9 T I! { T& M y( m& G8 r
<statement sequence1>;
, j I$ c/ Q5 I next;
4 x: j$ r% b0 Y7 b8 C1 f! _! o/ t: y' j3中断语句) q0 x1 w/ ^# v+ w# L, a% g! w9 s
waituntil <condition> prio <integer expression>; [5 L6 \+ _3 U* M0 e* p
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以上为常用的函数！' J$ L% o% w8 Z! S7 b
还有很多，如有需要我把资料发到你邮箱里 8 k" m" z6 ^- c' t; N$ o
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