|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
, T ~3 i3 ]3 y) A) N# t3 B! l if <condition> then7 {) d! i& r6 }
<statement sequence1>;
# o6 M2 h1 j y7 E elseif <condition> then+ X$ N& Q; k4 N5 J
<statement sequence2>;/ M1 F0 z8 x6 G
else
- S6 w2 Q P0 S- H! N/ @ <statement sequence3>;
1 Q8 @$ x/ N$ t6 K9 w9 B% l end;5 D& ?% h( { x" S! B1 w
如果分支比较多，用：3 g* y7 o' p! n6 v' H
inspect <expression>2 V S" m2 S9 r) U9 j5 Q
when <constant_list> then
( f3 ?2 G* L4 ^( a <statement sequence1>;2 O& ?7 ]1 m+ O8 ~
when <constant_list> then8 ~) N# Y; O' x% [" x/ k8 \: y
<statement sequence2>;" e1 V- N! `) y, L+ W o( i$ i/ B+ P: e
...
( [/ U0 P' i) l9 k1 s* h else7 k3 c) \2 ?- U3 N) `0 P
<statement sequence3>;
* D' V* S9 ^5 ]9 k: Send;
9 L1 [7 O0 L# J" z" W
: V9 v0 ~. s1 |4 R! ^2循环语句, ^( M v0 |. ~8 I: I
(1) from <statement sequence1>
* Q8 R0 b9 P' f% U( t until <condition> loop
9 R' x: y0 w& V s8 c6 U! W4 Y <statement sequence2>;
; D4 p$ v) n. f: t8 l9 g end; ~7 L8 a/ e$ a. J( c e+ N0 t
(2) while <condition> loop6 l* J9 {% M5 f
<statement sequence1>;9 ]( L/ r, E8 f, {- @7 X" V
end;: ?: y; t6 ^+ @3 m6 E
(3) repeat . W' O: o' F% n! @7 V7 z0 A
<statement sequence1>;) H) D) z& H1 G: D
until <condition>;
8 ~; `1 V+ r/ X3 @3 U (4) for <condition> to <condition> loop
- K* W* h. T, T: ^0 P, f5 o U <statement sequence1>;0 ]. n! |9 s. T7 A
next;
. r: \2 V# H; S3中断语句9 ?0 S5 l4 O! U! L! j) H, D7 a- u
waituntil <condition> prio <integer expression>;
* }5 S7 m7 p$ P. G6 H
5 W4 k$ I; l( ~# A ]) v! `( U5 I$ a7 q1 O% S
以上为常用的函数！9 x1 x1 i+ |& y, T5 Y" P1 ^' V
还有很多，如有需要我把资料发到你邮箱里 # I3 Y9 U. E; a5 _4 p4 [; c: n
$ h$ G8 U: t1 Y, O1 G+ `4 k4 Q7 k: M6 ^7 E( s' L' z K2 ?
) \ q, k3 [. Y& c# x; e$ p9 r# B7 r) x
% W$ T0 s+ W: y$ z$ Z @4 y* L7 Y8 `2 I) g0 S4 L- |8 [" i2 I O
: q: }( ~( C, S) W9 `
6 g( y# ]$ u8 S5 r6 n( ]4 S# E, X# [9 C9 ]
$ ~ k9 i& n! d" `
) _, X" M- D4 Z0 L3 w
|
|
[复制链接]
