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发表于 2012-11-13 08:48:12
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1判断语句/ j* h) N) U: Z: I
if <condition> then
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elseif <condition> then3 Y! _& T" j# C: V4 F
<statement sequence2>;6 p3 a; X# N1 Q) a) h
else * |" ?* ^7 G9 Q+ g
<statement sequence3>;
- P/ L, B% @- _2 z" ? end;
! T. X; c8 J* J/ [( n如果分支比较多，用：
% U5 ]% ?8 X: \0 w& T5 ~1 D/ n inspect <expression>
; T- T+ T& h5 M3 p& D1 w" ^4 Z when <constant_list> then4 l5 n& ?) o9 u; C+ _
<statement sequence1>;1 D# M+ T, A) l1 S; L3 b: }9 b; w
when <constant_list> then
5 l0 r4 l1 A2 J( [$ I7 n w <statement sequence2>;
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else
+ S' Z& c; d# Z4 r5 D9 j5 c <statement sequence3>;
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0 z6 P! i% P) k2循环语句 @4 ~; N- ~+ A' I- v
(1) from <statement sequence1>
) w7 Y) I" f+ h3 R- E until <condition> loop- U) C- `! h& J6 [* I3 B& z
<statement sequence2>;
7 p% u- @# s, y" s* ]) n! m% H end;4 D+ A$ e9 o/ [0 Z6 W% }7 s
(2) while <condition> loop; {; I" I& v) D7 t% k
<statement sequence1>;- S8 e! g, l" C _- s' [
end;
, X2 x p& s4 f# Z7 c6 a (3) repeat - g4 Q+ @. r" \; I! ]$ {
<statement sequence1>;9 l4 M1 N' s& A- r1 R
until <condition>;6 Q7 T9 ]. [7 N v) Q) B- ~
(4) for <condition> to <condition> loop
4 N# c6 a, W+ c1 k( y* Y <statement sequence1>;
. ]8 f1 w! G/ w+ [* r8 b3 V' Y next;, L# k+ E' D) A
3中断语句5 P, l0 Z, ~) X) {; F$ o; m
waituntil <condition> prio <integer expression>;
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. d0 M3 W" b" }. P, N以上为常用的函数！' J, I1 j( b$ \
还有很多，如有需要我把资料发到你邮箱里 ' i' i( u/ M# G
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