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发表于 2012-11-13 08:48:12
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1判断语句
6 A9 @ ~8 F, [; ?* }, w if <condition> then
' I2 g; u! a5 `# p9 M; I: E; }: C <statement sequence1>;" L1 q( m* `- S1 B# g/ p
elseif <condition> then
8 w: {; C$ a- V: ?( s8 G: p: H <statement sequence2>;
9 Z. ~. q% n2 h- H" c! Y1 R) Q else
G6 I9 t( R# x; Q, j0 v <statement sequence3>;* O. A# D& J# Q! y+ p, X
end;5 W8 Y! M8 N. R. F
如果分支比较多，用：4 w: r: ~) u( Q: y! t: U
inspect <expression>, R) U' h- N' ~! Z* J. ^
when <constant_list> then; K! {* h+ D5 |! e2 D( X& ]
<statement sequence1>;
/ a, H2 |' o o4 t5 j% b when <constant_list> then
Y T3 {! k3 \7 D& [ <statement sequence2>;" U; l/ ~4 |- p( ]# `! e6 ~' t. X
...) V( |. A1 Z r: X# ~$ Q" {# w) s
else1 g; b. c5 w0 x ]8 J, z
<statement sequence3>;
. M" ~ @ Q- a) M, mend;
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2循环语句% ^' i7 v" S- V) j
(1) from <statement sequence1>
S. Z* n+ \7 h until <condition> loop
# H7 e* @9 U4 K) N5 ~/ b <statement sequence2>;7 S" k& R9 N4 f' P% J: B
end;
% W! b* W, V; O* ~5 W7 \/ P1 a0 o/ M (2) while <condition> loop
$ L# _1 `8 F" e0 |3 j7 a <statement sequence1>;
# E0 `, z/ V9 l1 u end;
7 n! Y& W3 H& B* A( t* x (3) repeat ; Q, [& [- x7 h. ^
<statement sequence1>;
/ @ n/ i+ L" S% W- v until <condition>;
2 F* ] ~$ T+ v/ \! q) H (4) for <condition> to <condition> loop
1 Z7 z5 J' r; q% t2 U <statement sequence1>;) W% [: a3 R: o1 S: y1 D3 G T/ _! F
next;; i F1 w" h2 |0 D( N. l2 W1 v
3中断语句9 N4 V) C3 Z4 m& H
waituntil <condition> prio <integer expression>;
; C7 E- H5 o3 ?$ u/ R( ` ]
) x c- z9 Y- r a2 Y0 _ k, {" l( `
0 |. k8 c6 A; x+ F: h. u以上为常用的函数！9 m B* t3 d! L$ b9 ]5 e+ Y
还有很多，如有需要我把资料发到你邮箱里 ' o0 A; Z( e2 w( z
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