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发表于 2012-11-13 08:48:12
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1判断语句, m. D- U: E! @& K4 Z
if <condition> then! ]( f& @' k+ j" v8 o
<statement sequence1>;; h2 k4 R8 F, X' }5 j
elseif <condition> then
+ l, [3 m% G# }3 i R <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
0 d# p1 ^4 e1 c" T8 e inspect <expression>) ^. s( B3 T1 U0 S; l2 n! j( Z5 A" @ V
when <constant_list> then, W' s9 V! a9 d! s4 V
<statement sequence1>;
" j. l1 \" s* y* c( c9 Y' b+ j% H when <constant_list> then1 t$ R) y8 f z( [
<statement sequence2>;
, d$ \' Y' Z0 ^3 _1 Q ...
+ t$ O4 ^% g. k. r6 _! X; O. h5 Q else
7 s4 N( P8 }9 L: d5 | G6 f4 e <statement sequence3>;
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& T, I1 t/ i6 C6 C. C5 o2循环语句
5 T* T2 Z- h7 \/ P( m (1) from <statement sequence1>
: i9 w% I4 d' p until <condition> loop$ o: Z1 a" o! Q5 ~" r
<statement sequence2>;
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(2) while <condition> loop
' g5 B5 u, L$ _" W <statement sequence1>;% ~/ x Q1 ]2 Q q8 V6 j1 V& w$ _
end;
. H* ^0 F1 Z ~+ a/ S, S (3) repeat * V4 I! u+ }7 l( r" j2 [4 Z
<statement sequence1>;1 A. x& W- h! k' [% O1 R _
until <condition>;
# a, x7 e9 J6 C+ T (4) for <condition> to <condition> loop
- e. v8 i1 o# T4 N! @3 A- t <statement sequence1>;
1 m. t# S. @; O/ h: x( S next;
. \8 }! T5 `. r$ {- w; U# m3中断语句
' D# ?! b% G4 `2 B8 S4 u waituntil <condition> prio <integer expression>;
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% V& c& M, u) p& q) y. g. ^以上为常用的函数！! A! P* j6 C) ^% V) E
还有很多，如有需要我把资料发到你邮箱里 9 A4 T2 ~ d5 ?' f# m
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