|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句9 \* N9 w* [4 e. Y; H7 I% W h' q) @
if <condition> then
6 X8 P7 @$ d0 N y" e1 s8 X- K: w <statement sequence1>;8 L( k4 p5 s: {
elseif <condition> then
, t! ?2 t$ n. f <statement sequence2>;' \( \+ e* @5 f2 n* @8 N
else
( S$ w5 x# _* F0 h$ e% q; c' N <statement sequence3>;
* ?! r% Q2 l9 C end;( f& [4 G5 t* t% p5 R; k
如果分支比较多，用：, Y( [4 v( ~! e5 i
inspect <expression>
7 W! Z$ u: r% m9 r, x when <constant_list> then% G3 ]- l* `) i$ C6 B! |) j4 W" y
<statement sequence1>;7 J/ z' A l) m) N, e/ ]9 g' k
when <constant_list> then
; D \, d" |& ~0 {; F7 `- f <statement sequence2>;
9 @5 h5 h" N7 S ...3 A5 X1 U. [" i2 Y1 {; A" G
else
5 |' i- ~: `! n+ @* U' Y( R! A0 F <statement sequence3>;
9 g9 [' d+ l K X" B! w# cend;
- O, u6 M) h" {3 R1 |
7 ]8 Y& G$ E9 p) D4 L2循环语句
' _" t H* z% K* k+ T, N; E% q, Z+ _ (1) from <statement sequence1>+ S' G) q1 {& q0 f* E; \
until <condition> loop8 u; e4 H- ]7 F( E R; \3 N4 q
<statement sequence2>;4 |5 P6 q4 C$ h/ G, s. ?+ `" A
end;) }8 t' L. ~0 s4 y& o E
(2) while <condition> loop
/ ~' e2 \7 R) W& C9 u1 k <statement sequence1>;4 B2 E* j" @) ]3 j2 J( ^: c6 C
end;7 E4 |7 V1 l. r x% \9 a4 _+ ^
(3) repeat
7 I% F( c6 I0 T% ` <statement sequence1>;
$ I5 z2 L$ A3 }$ z0 n/ H6 M7 W8 [. [ until <condition>;
5 e1 S7 f" }! z (4) for <condition> to <condition> loop
# @; ^6 d. }6 j5 T# w5 s <statement sequence1>; ?% l! ]3 C: u+ l) r
next;% B R+ y; G' Z5 R5 X
3中断语句$ B* V, j; H, n3 |" E! M# l6 p& @/ A
waituntil <condition> prio <integer expression>;3 G, j& \5 A' c6 J8 x: y
* R3 K u x) S2 b& z3 Q0 s( d. o' S4 d1 r/ x3 I" }
以上为常用的函数！
7 U& h' m+ H1 ~8 ~2 G+ M) ?1 A还有很多，如有需要我把资料发到你邮箱里 0 E, c% i8 @4 N
Z# {( ~/ v7 F2 l$ E) A+ A4 O3 p s! y3 z7 Y
$ _: w j, T/ S+ j0 @' o2 J
; _4 B/ E6 Q) g5 y3 V6 C" l' d
6 y' L# p) e$ {7 [: {7 u, l
& n! n2 e' T: c) a# P4 S% U; `7 m$ w& m
R! G; y1 a7 ]4 v, h# l0 b7 [$ G v2 K
4 Q+ N$ q3 e: R: ?
4 I: f* ^- M) M8 Y |
|
[复制链接]
