|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
: T( X2 L. s7 @3 r if <condition> then
3 H3 \+ v3 G4 |0 e$ i <statement sequence1>;
, I* K* _! \2 Z/ i elseif <condition> then8 `! P4 U2 v7 l" L
<statement sequence2>; g4 e( z' j- v) }+ H+ `- W( `
else 4 E( x; e+ G8 J. e
<statement sequence3>;
) U3 H: b8 [) O7 E end;1 T# y. A, _4 U- X; J
如果分支比较多，用：
% {# R2 i: X1 r6 H9 K: C inspect <expression>0 w* `$ n5 V, v* {, d1 Z( ~
when <constant_list> then
! X( m4 Q7 f" O9 ?( f+ Z <statement sequence1>;
0 Y# R' b: S) r2 `. }, m$ l7 ^ when <constant_list> then0 r1 X- i. k/ g3 Q" M
<statement sequence2>;
8 o3 j, y3 G k2 |" u ...
8 Z1 `. W1 j, @. t else g& _* u5 Q1 V9 ?3 d
<statement sequence3>;5 R o+ U) N& N
end;* D+ Y8 ~/ B( X- w
# K" e% M- L0 }3 a& ]* A2循环语句( P5 Y% h4 Z( c
(1) from <statement sequence1>* H8 U f" h3 i
until <condition> loop
. b4 x8 u0 y: [; z, v# a' ^7 E% y' F <statement sequence2>;5 H/ N, f0 F% g$ O1 q# B8 M2 d# k
end;
, X/ X" _. P; Z1 N4 Q5 q (2) while <condition> loop) k" ]6 w' y/ W& z, C% h* ` s
<statement sequence1>;& k, z! }: _# G; ~2 h2 }
end;. ] G2 Q$ Q4 w
(3) repeat
# }5 I! z$ D. X) K <statement sequence1>;
5 f5 s7 ] W1 E until <condition>;
, c- r2 d& N6 s+ p# U" x (4) for <condition> to <condition> loop @! ^) q ~, }* |: F5 H
<statement sequence1>;
, g* k4 L3 B6 s( T3 d+ s% I next;% w* D! ~' ^7 K) t
3中断语句
: C+ W5 _$ s* C* k( X waituntil <condition> prio <integer expression>;
1 l/ M* k6 j% Z9 E! n/ h
+ @3 ]9 k! `% ~* b. n# c2 I T8 B/ m$ k4 _
以上为常用的函数！
" t% x$ t. _0 b3 E; \9 T# C还有很多，如有需要我把资料发到你邮箱里
- \0 _ Q7 E( c. `
" w3 D _+ T4 y }% ]% M! c& Y5 [- J4 d: l L+ [) _3 {/ p
* \, W" {, n7 Y- X# x6 ^
! k, t+ G+ e2 ^
# w. C+ Q% r* ^( u7 _9 C0 g
5 c4 O$ Q/ P8 r7 I* ~
F3 d' E7 H, h0 i' b! A
8 g* L& a" u% A! J
- _6 d' L7 l2 s* s( o6 H$ ` ?4 l3 b3 g* }& n! m
|
|
[复制链接]
