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发表于 2012-11-13 08:48:12
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1判断语句
5 K) L8 `0 O2 n if <condition> then8 r6 j( W) P, V% P) X
<statement sequence1>;5 h$ [6 B5 S# g* u8 t
elseif <condition> then
% B# R4 D; z5 V% M( B) O <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
4 G0 {# N) [& c4 r' ]7 |& g" h7 i inspect <expression>
1 Z& D! K& \6 G; n8 s3 [ when <constant_list> then) h; J' O0 v6 ]% Z! r
<statement sequence1>;
# q2 r/ m' ]2 J( x9 r3 n" b5 j0 X' X' K when <constant_list> then! H8 C* Z. C0 ^9 s" o9 p7 f
<statement sequence2>;
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else
_, |2 j5 A/ L* v; H. \ <statement sequence3>;
d' i2 { }/ {end;
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/ I8 {( m, _# V# i4 O3 d, x! a2循环语句( x* x/ |3 u5 H! j; A
(1) from <statement sequence1>8 p% C6 b+ a& S
until <condition> loop7 b' S/ `/ Z: K
<statement sequence2>;# A: J: y, h! E" i3 g$ A2 L' N
end;
# L1 J, S3 f! q; b8 r9 `( L: N$ [ (2) while <condition> loop) h2 i) j* Y* ^" s7 n! F
<statement sequence1>;' s) i( y9 [( v
end;& {( @- M: l, Q" S3 k$ p
(3) repeat
4 Z; p' @5 R4 H4 ~. c8 h <statement sequence1>;* c5 t0 C; k& f7 S. S$ ?9 C
until <condition>;
& m1 r% S8 u7 |& n& y8 [ (4) for <condition> to <condition> loop
( G7 a/ [% }/ p* _ <statement sequence1>;) X! t8 k+ R" X# F& f4 n
next;
8 c" V S% K3 q, Z! }! p3中断语句! x2 \1 E2 j% K- ^1 r; l
waituntil <condition> prio <integer expression>;
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) P. }# G5 d- p# g6 U' \以上为常用的函数！
! Y% P: O. c9 g5 Q& w, ^- E还有很多，如有需要我把资料发到你邮箱里
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