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发表于 2012-11-13 08:48:12
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1判断语句4 X5 m D% X4 D9 |2 F8 @+ ^
if <condition> then$ f1 Y8 M2 n$ V9 K% \& v
<statement sequence1>;
/ N6 u+ T) y3 |% h+ @& k* K elseif <condition> then
. I& o% g! {# h, M- W <statement sequence2>;
4 l( n. r; Z+ S( r$ v else
4 F' A. D" k {9 q' F1 H# @3 R <statement sequence3>;
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如果分支比较多，用：+ l2 y) ]% M o! B8 b8 Z
inspect <expression>
: C; S8 r9 r, k+ s0 W1 ? when <constant_list> then
, b$ O, a! M1 U9 c, w+ R0 G <statement sequence1>;
% P/ j% D% J+ p" K when <constant_list> then; t; p- x7 D' D
<statement sequence2>;
) n- k3 l/ A0 n+ C1 g" J, ` ...
5 Y5 f8 F: A4 L( E( b# a; x else
# }, w5 a& K4 s" Q% x. ? <statement sequence3>;
. q; w. D+ _* o& t" eend;
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: o# @: G# t+ _' w+ ~& A; F! h2循环语句" C. p8 X: Z$ g
(1) from <statement sequence1>' K( K0 \& \! z H: `. M
until <condition> loop- f3 K, Q( m+ \7 j, @5 e
<statement sequence2>;/ Q: B) o* {- c& F! t
end;( n& H0 f3 w( ]5 k
(2) while <condition> loop
" ]7 @4 l E. @2 R/ P$ u% [- T/ A <statement sequence1>;
% H$ G' O. t8 N3 h( r end;
, J6 x. g. I4 I) V3 F6 ^- M) Z (3) repeat " C' @1 E0 {$ G% G7 R2 }2 `
<statement sequence1>; a" l5 v: Q1 h$ E9 p
until <condition>;
4 ~: s# ~$ v- \- R6 l6 R- T (4) for <condition> to <condition> loop- K$ j8 V5 P# ]8 E/ {5 U. S+ q
<statement sequence1>;+ f2 b5 a5 A% m/ M" ?( R: v- o2 y# M
next;2 J( d8 v- h0 `3 B: n# ?' g) V( w
3中断语句
7 G2 Q4 P( y' P7 \* W P4 U6 { waituntil <condition> prio <integer expression>;1 T' W7 U) H9 [- u& Z$ y
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以上为常用的函数！
; r' w, q+ D9 Z" w# c9 X, Q$ }' z还有很多，如有需要我把资料发到你邮箱里
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