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发表于 2012-11-13 08:48:12
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1判断语句9 g2 M# Q W& \% S$ m6 W
if <condition> then
4 U0 t3 `& \. v* j6 N8 ~5 f2 u <statement sequence1>;9 @1 X5 R4 Q9 X0 P0 i9 D% q+ t( v
elseif <condition> then$ n1 m. H; n( R' w9 k! C. {4 r
<statement sequence2>;
2 i7 ^( z( |7 u# f1 x5 v) } else
k" H7 k* D" ^! e, P1 O- g q4 {& | <statement sequence3>;
9 [$ s V6 ]# t9 A, y, @' w' u end;% Z/ T/ a f# K, V5 t6 E& p
如果分支比较多，用：
% x0 G2 E) y! @- E0 I* z inspect <expression>
& l) k: I* f! m" _4 F6 |. t. F when <constant_list> then
: l# K9 L2 w0 A+ M" ` _ <statement sequence1>;
0 Q) B9 s, M) K! r! M' g3 S, _ when <constant_list> then
9 p- ^6 ^4 \' }' m" c9 U <statement sequence2>;
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else. ^$ q6 d' g( I8 n/ X' a
<statement sequence3>;
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2循环语句, p( `% T$ h' r- |' ^
(1) from <statement sequence1>
" i+ ~5 ^5 L6 @2 { until <condition> loop
$ F" j* T, i0 v+ d/ u2 k; x <statement sequence2>;6 F& K# @* [2 p! s; `* L# l/ m5 T! t
end;9 O R* w# g- p9 J" m3 Q
(2) while <condition> loop+ X. ~. ]( R9 k0 K, |8 X/ U# H
<statement sequence1>;# X! o* _' z( l, {
end;
# X: y6 y T( r (3) repeat 4 A ] S/ R% _) e2 I A* U
<statement sequence1>;
- g) m3 s' h; ?+ g- w6 S until <condition>;2 s; k e' a! n5 {1 z$ A
(4) for <condition> to <condition> loop
% A9 z9 }. s! m @: Z, `; l <statement sequence1>;
C% S4 T5 A+ V) E next;
, d* O. R0 } Y, U7 c3中断语句
% T) J$ v+ B1 @0 Z* D! V waituntil <condition> prio <integer expression>;
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# o, {: j' h- A* r) ]" S9 _以上为常用的函数！
" C7 v* h! [5 \8 M% K4 x还有很多，如有需要我把资料发到你邮箱里 ( `- [' {0 n8 A, A
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