|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句8 I6 B1 m+ a9 W9 ^9 T i5 c5 Q
if <condition> then/ ^+ ]4 _; b; T- y* G9 M s
<statement sequence1>;
! @$ N# L& ^3 ]" q# ` elseif <condition> then; j$ {) C7 c: T4 I* Z1 Y
<statement sequence2>;
, U1 h6 V. z# p7 ^( W3 L, d/ ^) r4 r else
& U* x! a3 ~/ u8 @3 W <statement sequence3>;4 @( O+ q- |; e2 h" P$ _" V
end;. G+ w( A7 B/ [+ a) U! A2 G
如果分支比较多，用：. j9 ?3 V! g: |; U* u, t \( ]
inspect <expression>- b. q" I. P% T) v0 t" g
when <constant_list> then
! m9 N1 \8 h- _6 @7 G <statement sequence1>;
4 x, u3 Q* r& `9 W* K% d: a when <constant_list> then
, O5 }. H* j# `- }5 I* t <statement sequence2>;
: h! v, q3 M$ k( K5 t9 |# K; Z ...
. m3 y$ V7 P/ q0 s else
: z# q* x9 `# q- X# [ <statement sequence3>;
8 k8 f9 c+ n, `" y+ qend;
7 ~5 v) L G; i; P0 z/ W( B9 t! s W+ o; s. m% Y
2循环语句2 H8 k" e& j3 @9 f2 _. u4 s4 {
(1) from <statement sequence1>0 r# G, P5 ^7 N! }/ H+ o
until <condition> loop
& C3 V2 U& G5 B3 ` <statement sequence2>;
. T/ e7 l, r: d end;
5 {* f) |5 Z2 c (2) while <condition> loop
6 o( k) J- {3 s( Q <statement sequence1>;
5 }2 j6 M) J/ i' V; _1 l end;
4 y# K0 f8 `5 R2 j4 v; b! N" l (3) repeat
7 Q9 ?, k9 L5 q! h) f) Q <statement sequence1>;
) [7 \ _6 V K. @ until <condition>;; t! _5 D6 ]( F, k
(4) for <condition> to <condition> loop4 S3 ^: i3 r6 V" f, e* \
<statement sequence1>;4 [% c: N9 {) w/ m% [) G7 |9 `
next;
% O! P$ }: Y' _, m; R q3中断语句3 [6 T- G% h5 a) }7 u
waituntil <condition> prio <integer expression>;
5 F- R* i- w- W, C0 }& D3 \) U
7 e" b \" h6 G0 f. f1 o8 S2 [) {# m. w7 f, F6 |( z! n/ ]
以上为常用的函数！
9 E$ N& `) d6 K还有很多，如有需要我把资料发到你邮箱里
6 y3 U$ {% V0 N' a8 x) p0 x
@: @! ^& e. D: o9 b- R5 D# ~$ E( W. ?, G2 f) X" \
* d# m. m* C7 ^7 q
. K, J6 {6 _4 H1 t
7 |/ u) [# q, l" n! W$ a
* Z" S' V( Q2 ?: Y/ L& q7 t
# F1 u2 E% o( R* ?, s
( y Q, L" q' a8 P7 S7 F) W, p6 k4 J
( ~+ S# v0 B* V: x7 _, {; l; p
; }6 R$ s. k; j1 c7 B' C- K
|
|
[复制链接]
