|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句* l( j/ s8 j& x l
if <condition> then b& H5 D- i) L6 l2 T$ e+ _
<statement sequence1>;
8 k E3 T8 `7 \' ^ elseif <condition> then
- w9 \: t v1 C8 o) i <statement sequence2>;$ F: T$ S1 V% ?) |. D% R
else , X" o6 C5 s6 a a4 z; v
<statement sequence3>;. }8 y- w& T! h. Q' q: n
end;+ I2 S3 b; s: d: G7 i; g! D( O
如果分支比较多，用：- {+ k5 M6 x. B% V% w' g$ {
inspect <expression>
+ u& y0 s& ^! C$ E; T8 G( }/ E when <constant_list> then
/ V/ o7 G. W3 ^ <statement sequence1>;% g K/ V$ r9 i" v- K& |# W
when <constant_list> then' H" _, h) z9 w1 L7 w2 \& F
<statement sequence2>;" V" f1 h1 d, \/ h# P' }7 P$ t
.... ^/ Y; [: V; l
else
) J- \- c9 a) i9 l( O3 u <statement sequence3>;3 M" T# w6 o+ B/ ^9 e
end;
& Z) r: \7 a* E4 j3 w3 c* @ j4 E4 t8 W" Y4 k7 K8 _' ?' ?: j
2循环语句" z* l3 @3 b2 Z( D L& u
(1) from <statement sequence1>
$ Q8 }$ }& [: T: O$ R; r4 p# v6 e until <condition> loop
( b+ ^3 A6 C* E/ q5 R <statement sequence2>;
9 L1 w4 v# p% p0 e end;
. G8 v9 H- P5 h3 {, @ (2) while <condition> loop9 \4 h+ U. g- ^7 U
<statement sequence1>;
9 \& ~2 P; F4 U) Y' v0 @! ~ end;) S: g/ G l0 D3 d5 Z
(3) repeat
% ^# D+ K( D: x+ f* l <statement sequence1>;
- L" Y; V" t! v+ w3 Y8 O until <condition>;* v/ [9 Y! m; W2 M; G7 ~
(4) for <condition> to <condition> loop& S' Y/ Y) i' J, x! \1 ~8 f3 r
<statement sequence1>;
) K# B9 ^/ z1 O' y8 C next;
) c* ~1 V# l7 t8 G3中断语句
1 h( i# u6 k, H0 @) c% G3 t, Y# {8 n4 Y waituntil <condition> prio <integer expression>;" D. E6 v' l6 d+ P u" w/ h
5 f; S* e- I. M% Z3 n0 z. `! P4 u5 h: ^
以上为常用的函数！4 C5 e0 Z( e" ?- K3 H: t
还有很多，如有需要我把资料发到你邮箱里 3 x& y! q6 v" m6 o+ P
( f, u8 b+ `$ U. Q/ C; S1 v
. {8 D6 S% J) n. D
! P& |' s/ I( N9 r2 I3 q/ o0 l * R% m. ]' p0 t) |4 p8 D) D
$ V6 k4 H: C& a2 {+ @; i
5 N X$ O# }* i+ o$ V! S0 ~
9 ~5 z# w0 M! [/ J: a5 n5 S% ~0 q# A; n
2 j* c- Y M, A7 U
! S$ L6 N( \& x3 j
|
|
[复制链接]
