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发表于 2012-11-13 08:48:12
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1判断语句
9 k. u W& ^& {* @8 e x- t if <condition> then
! n& M) ?- i T d: v, Q) c <statement sequence1>;- C4 k! N' g! e* u/ L9 l9 t
elseif <condition> then& ?5 s; f5 U8 c# q' [
<statement sequence2>;
6 `0 a) c# b+ {: T8 h- | else
0 X) }5 b- x7 J% F7 ]+ i <statement sequence3>;
d2 B8 r' v9 X end;7 }9 R. c4 n% Q& M' F
如果分支比较多，用：& H, B: l# ~7 b
inspect <expression>$ \0 q5 P o4 p3 X4 A
when <constant_list> then
* h7 u! R4 \! R6 H0 m <statement sequence1>;" S; q$ W1 E( O/ a2 E7 x; ]
when <constant_list> then% e, ^0 Y9 x, m. C
<statement sequence2>;
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else- X; ?/ i- b" D7 e% b
<statement sequence3>;# d0 R1 d- ?+ w1 L# \
end;0 J! B! }, D7 E$ w: K# O, D
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2循环语句
4 E: k- D4 f5 z. z N8 M (1) from <statement sequence1>
) U4 _ t! c3 D7 D$ Q3 a until <condition> loop
. o: O+ e" z4 J6 I& U. O3 T <statement sequence2>;8 s [" H e! t5 _8 x* M
end;6 f3 P$ G' D( u+ X9 [ A7 x8 Z
(2) while <condition> loop- y# v* c( p) p5 _
<statement sequence1>;. t% |' g* C( H
end;
1 f( U& ]# `9 v }/ [ (3) repeat
( L/ T% N. K q+ K <statement sequence1>;
0 o7 M# m) M2 l5 W until <condition>;
' }6 i. A# z' I" e) A8 x (4) for <condition> to <condition> loop
7 i6 m$ q; o( r <statement sequence1>;
8 F! z8 k' x4 _: P+ m next;
. X: s4 @. }; @5 _( m; I0 g3中断语句
) v4 {& S" G; z0 T; i* I) U! \ waituntil <condition> prio <integer expression>;
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2 Y3 ?- t% ~8 ^! m以上为常用的函数！
3 p( G- O @. j8 F0 k3 i$ v- V还有很多，如有需要我把资料发到你邮箱里 1 L. L& a; C* y' L7 B
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