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发表于 2012-11-13 08:48:12
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1判断语句7 K$ U4 X* g ?% c9 |( t
if <condition> then6 i+ J" }' h% b: n3 P
<statement sequence1>;6 p; i2 j5 B9 y2 c( M5 C( _
elseif <condition> then$ t* c5 a. a- I7 H0 t6 D- a
<statement sequence2>;8 l& _+ b4 }- O
else
+ t" t7 D X3 v5 \0 L# j4 z <statement sequence3>;$ y. V4 ]8 p$ M
end;
# z8 a, z. Q$ l+ `( v如果分支比较多，用：
( u8 s: j/ d3 Q" E$ L+ m inspect <expression>+ x* r6 w* `" S D0 U
when <constant_list> then
) X9 ]) L# y. V6 `" W: K$ K0 X <statement sequence1>;
$ O$ A8 C O; F. g# q2 }! ?+ n when <constant_list> then
4 Y& R, K( Z) G <statement sequence2>;2 @, c/ i6 K: m$ N! }! X. C
...
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<statement sequence3>;
) j( B6 I. w9 f7 {4 d5 H4 D, ]end;
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2循环语句
w* p$ s, y) n; V (1) from <statement sequence1>& f0 z4 m& Z$ T# N& [
until <condition> loop
+ o9 q8 S0 {6 x3 Z <statement sequence2>;% P- M- S% B- h/ @
end;
q0 c" o4 N3 v9 W# M (2) while <condition> loop) ~1 J9 M( F6 e! P0 G
<statement sequence1>;
: a: T0 [ t7 D( k1 E) S end;- Q4 ]* z B0 m5 N1 r6 I; u" w
(3) repeat ' Y& p( T: w4 p& w
<statement sequence1>;
9 i, S9 x8 t1 {2 i8 h until <condition>;
. c! u# q2 i3 N$ q (4) for <condition> to <condition> loop( J! L6 ~9 s! i7 V
<statement sequence1>;- \5 m$ e& x6 x& w% Q i& ^& \' O+ \
next;
- _' k$ ^) ?* l0 v9 }9 }% S3中断语句$ r. n2 I$ w5 t" }
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
$ c2 Y. W3 H* m2 ^7 ?还有很多，如有需要我把资料发到你邮箱里
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