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发表于 2012-11-13 08:48:12
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1判断语句( x( }* j' z' @8 k8 S
if <condition> then
v# n4 I! h+ p' m3 G. H. A <statement sequence1>;4 V! p9 u' [. w
elseif <condition> then- B3 |& S* K! g# P8 L0 ?: r+ f
<statement sequence2>;
# W0 E6 y' Q0 X4 U; F ]8 k else
' c: C1 p' n2 P <statement sequence3>;
) D/ w, p6 y# e8 d: o5 L4 F end;
# }3 G$ @# R: I9 n如果分支比较多，用：0 W0 S; \+ ^! L( L% T5 G' N2 G2 h7 ^ [
inspect <expression>* X4 e* `5 b1 I4 G
when <constant_list> then
7 \$ p. i( m! o* A) j9 |) m% K <statement sequence1>;% j9 n2 c- ]" ^2 x- ?
when <constant_list> then
7 q: H5 z4 [+ W2 n/ r; P. u <statement sequence2>;
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else
# A7 y6 B; c7 h% ]' ?9 X0 e( V <statement sequence3>;' w( a7 y. e% P& x2 }
end;8 u+ o7 J3 E# M* S- A0 ~
4 }7 G5 z1 j: E5 ?% ]: x/ q2循环语句! g- |$ N. K" D+ \% i
(1) from <statement sequence1>
/ R! F4 P$ Q+ H) m, R$ i$ D, S6 d until <condition> loop
3 \" }- g8 H0 \8 c <statement sequence2>;5 g& u$ n- y! l$ V: ^; |7 W4 K7 Y$ r
end;+ W( o1 \. f5 O! A, |! p" ^$ Y
(2) while <condition> loop
/ p" U7 l2 p# l7 n% V) L3 y <statement sequence1>;
- J4 A$ o6 ?& a- ?1 U& p end;
8 k a6 x8 d# p9 @ (3) repeat 5 V8 u6 ~: C: u, f& v e! \
<statement sequence1>; u5 ]3 k' P3 n
until <condition>;
4 X- D( p1 y6 `8 A m- h (4) for <condition> to <condition> loop% R( j& J; Q9 V* A
<statement sequence1>;, F. H- P2 L( \7 D6 X/ w
next;& F% T! |4 J# ]' [' E& M4 {; h* l1 G
3中断语句# g5 [ Z3 G2 Z7 R3 Y! J7 j/ E
waituntil <condition> prio <integer expression>;
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以上为常用的函数！" r' z( ~& x& u3 V8 l
还有很多，如有需要我把资料发到你邮箱里
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