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发表于 2012-11-13 08:48:12
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1判断语句# }( o9 |! {% J, v% i3 E* ]
if <condition> then9 X0 c4 s W$ i" W9 V
<statement sequence1>; m/ ]4 `* x5 C d/ B
elseif <condition> then
4 @3 x7 s( T& ]+ a2 R5 m3 s% M <statement sequence2>;
6 V! i; u7 H* J0 H4 @% v+ [ else $ A& L) ^0 d$ U" V
<statement sequence3>;8 n1 d- X7 [4 l) h2 S1 f
end;
3 Z( ~3 F( k. ~如果分支比较多，用：
$ n+ A9 l8 _/ M6 R* [ inspect <expression>" S1 t) [! ~ i2 y& V% \
when <constant_list> then
: R! V1 \) G# p9 c! b$ v <statement sequence1>;& u5 G* J3 r9 W: G9 }: C' B& V) [
when <constant_list> then# F3 \5 e) p% B. T
<statement sequence2>;) m% K+ q) V0 N6 E+ `( I5 K
...7 q; \. K$ l* }0 F
else
* d6 i" O$ j; K- q8 J1 m <statement sequence3>;
- ]2 e% c0 E( M6 Nend;
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2循环语句
$ J8 A L/ _- L* Y; C5 k! ~! U- U# V (1) from <statement sequence1>/ j0 ?6 T% u; s5 g
until <condition> loop
" a4 b# n% L! z( |* W& s5 c4 I: ~ <statement sequence2>;
# h5 G+ O9 ^# V3 u/ j8 e' E# ^) ~ end;
- i& [! l0 p- n* x2 | (2) while <condition> loop
5 ]/ z. |0 P' H8 T+ m1 R <statement sequence1>;1 N" j( U- C$ u. z% b* B( I
end;$ G2 x% _+ N8 F1 G
(3) repeat
% `% t Y4 j) S+ ?0 V <statement sequence1>;
. C0 |1 S2 [/ j& J until <condition>;
; x- f0 g. g" s Y, Z/ E (4) for <condition> to <condition> loop& ], U2 M5 U5 T) S9 A3 \) X# F
<statement sequence1>;
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3中断语句2 ^/ c& ?+ A$ g; r
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
% ~: I# q9 F' O4 E+ p5 K还有很多，如有需要我把资料发到你邮箱里 , h. P7 _7 B3 \4 W
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