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发表于 2012-11-13 08:48:12
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1判断语句, b& t _3 [. u- `
if <condition> then
) k* e' T, q: M) n <statement sequence1>;
% }/ O- m* F8 S/ j elseif <condition> then7 z- x/ h5 R+ O7 y9 w& o
<statement sequence2>;
8 X( i4 z& A# f else " }$ g! S. n5 y4 l4 `
<statement sequence3>;
2 p+ {9 O. {- p0 o" H end;
m& n1 V- v% \4 ] ^如果分支比较多，用：% g' t* W+ A! T* |! F
inspect <expression>5 Z9 p( w6 s5 J% l- E
when <constant_list> then
+ P/ }1 D$ ?% Q# Z* w- f <statement sequence1>;5 f2 c, `) O. R3 ^
when <constant_list> then- t+ R y* ~* |) h% o3 H
<statement sequence2>;
% n1 u! [) z5 ^! | m$ ? ...
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<statement sequence3>;; s- f4 l! e1 P; i) V
end;+ n( a5 g E$ a) M' O8 P1 T
& |7 O% u4 a- W. \- ?/ n2循环语句
+ N5 u8 W/ C6 z+ p& T (1) from <statement sequence1>; c4 h1 u: [8 C+ I5 [/ ]8 O# E
until <condition> loop
( S+ R; t8 C' ]/ ]# { <statement sequence2>;- e4 g/ E- X% g0 A" ?
end;
/ W Z' ]1 I& o3 q" G2 a (2) while <condition> loop
2 g# h$ Y0 v6 }4 j* l4 K8 U3 y <statement sequence1>;
+ [) f& J& L3 V end;
, D1 W! R+ n% b1 V& E7 h1 Z (3) repeat
# M4 Q7 Q' a# d1 E <statement sequence1>;
& j+ S: u$ D2 n until <condition>;
0 Q5 G7 p+ v) m" d/ p4 F7 q (4) for <condition> to <condition> loop
2 Y) z9 D, R9 K <statement sequence1>; G) p! P5 R1 j+ o. J
next;
" a$ V- K' Z+ g3中断语句
$ O9 D& {" s) r! F' b; ^ waituntil <condition> prio <integer expression>;/ g( m( k' X# D: X
8 \9 P/ r6 Q' k
# u/ I* W* A2 g: ~3 Z% f1 H以上为常用的函数！
/ K) K- M1 `/ [# Z1 M还有很多，如有需要我把资料发到你邮箱里 6 l! [9 W) `/ S7 t+ h
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