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发表于 2012-11-13 08:48:12
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1判断语句
) U0 s- r5 _, D. z if <condition> then
: v! C7 p B2 J3 K: d% S9 Y8 ] <statement sequence1>;
6 n# o' G e& U; ~6 C elseif <condition> then
5 s7 ~& O9 C& @2 u: C" x, m- \ <statement sequence2>;4 }, p4 X* H1 C& _% Q1 p, g
else
0 p" D) W4 _3 q& P. e& A+ N <statement sequence3>;
! c: `. c/ h% I- V3 h$ w0 @5 @ end;
# {; j& A8 J7 j如果分支比较多，用：" r; b) Z$ `3 Q: A
inspect <expression>* z/ R3 Q( f- \
when <constant_list> then- a6 L5 O& p7 C
<statement sequence1>;1 `3 I8 { q2 t
when <constant_list> then& `: ^; [3 R# Y6 {
<statement sequence2>;
+ u) T4 _! {) t ...
, q; b! Q; l6 j& n5 x else
! E: X5 ]' {8 f# Z& R k3 e <statement sequence3>;' }! F9 H" {& ~# b8 V8 h
end;& ^, X8 g% G: ]$ h
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2循环语句/ Y! M( S2 R" Q7 h% K1 |
(1) from <statement sequence1>
! E4 R k( ?" D" [: n9 U7 Z5 K until <condition> loop; h* o% _! k. X& r9 K: g/ Z
<statement sequence2>;
! d( l! u, H( T% Q2 I: B% K: k end; E9 n; J: W3 p$ Q) _
(2) while <condition> loop$ J- E) \' J, \: _% p
<statement sequence1>;
9 {: \4 L1 X( Z& w+ q& c# g end;* D- V& G0 i& Z* E8 f* a; x, m5 Y
(3) repeat 5 k( K* L$ ~+ {; ^- L3 W$ {& {" H! ^
<statement sequence1>;
) Y9 j# m" N' O% p4 \ until <condition>;; o* T; I4 y8 d
(4) for <condition> to <condition> loop4 j: F: H2 l5 m. z2 D
<statement sequence1>;
3 j! W k+ W# ^' V. n5 E1 Y0 K next;
6 E) s1 U0 x. q# w) l. p. H3中断语句
, A& x/ s: i( N3 r1 t waituntil <condition> prio <integer expression>;$ Q7 @9 h5 E. ~: B
4 K- E3 T- X# G. r" d6 |+ F& w) E% F6 @8 F9 @
以上为常用的函数！9 d: ?& f) O |$ R, p, K' r+ a
还有很多，如有需要我把资料发到你邮箱里 ) o, H1 k! q7 g1 }/ b! N
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