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发表于 2012-11-13 08:48:12
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1判断语句. Y6 v& k1 x# ?9 ?
if <condition> then u4 G) o* C% i" u
<statement sequence1>;
4 q3 s! j9 u9 z9 F$ l elseif <condition> then, [1 ~$ c( U5 f. L
<statement sequence2>;
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<statement sequence3>;8 X( O5 e; V6 m' v- P
end;- _/ h/ t; G2 Z
如果分支比较多，用：8 y& n) }! y) E
inspect <expression>0 U. C/ N( i3 ^; d
when <constant_list> then% h" a' r4 ~1 D g7 e, l/ A8 B
<statement sequence1>;
2 C8 U/ K6 f8 X7 M7 f when <constant_list> then1 _$ v# Q0 U+ E* V1 x0 ~
<statement sequence2>;
/ G/ ?5 c( V6 a: W/ P9 c0 E9 g ...
( d; Q6 p9 A. B else
+ G$ h0 ?+ y9 Z8 x3 Z <statement sequence3>;
8 A3 n! R. c0 Qend;
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3 C! r0 P/ C) v2循环语句9 Y2 z% M/ J; w4 j4 \
(1) from <statement sequence1>. v* D6 f9 {2 S
until <condition> loop
& s; ]# |5 m" U7 _4 B <statement sequence2>;
9 ~& @. Z$ A& b- v end;$ ]8 `: |1 H$ {1 U4 ]6 N5 I
(2) while <condition> loop
; {4 b7 @) G- Q- I9 ] <statement sequence1>;. z6 D/ U: P# S
end;1 @) _# t* g0 L& u8 P7 A) e4 a
(3) repeat
, h; }3 U+ f& M5 Z <statement sequence1>;- ]0 ^5 k; b$ \% z/ H0 B' t
until <condition>;: X* `% M+ {1 I4 |4 g5 B' _
(4) for <condition> to <condition> loop5 g' q5 x: O# M
<statement sequence1>;. _8 ~: `# a7 P7 b
next;/ G4 {9 `+ B( Y1 q* r
3中断语句
8 W4 q) ?7 t8 \/ O/ c waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 n" l7 H' P a) C/ ?" M/ A8 g
还有很多，如有需要我把资料发到你邮箱里
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